SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

HOW TO INSERT TEXT AT THE BEGINNING OF EACH LINE IN VIM Step 1: Move cursor to the line from where you want to insert text. Step 2: Hit ESC and type ma. This step will create a marker a. Step 3: Move cursor to the line till where you want to stop inserting the text. Well, the command might look complex, but it’s something similar to using range. At Step 2, we create a new marker a. HOW TO CREATE TRIANGLES OR ARROWS USING CSS? Unlike images, CSS is lightweight and it’s quite simple to use. Today we’ll see how to create Up, Down, Left and Right arrows using pure CSS. For example, if you want to create an arrow pointing upwards, then you have three sides; the bottom, left and right. The idea is to use borders on HTML element (I’ll use div for demo);

where the

: CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

ERROR IN SUDOERS FILE? HERE'S HOW YOU CAN FIX IT Solution: The modern Ubuntu system and many other Linux distributions have made it easy to fix errors in sudoers file. Assuming you are authorized to run programs as root, execute the below command and enter your password. The command pkexec along with visudo will be executed as root and allow you to edit sudoers file. SYNC LINUX SERVER TIME WITH NETWORK TIME SERVER If you want to sync your Linux server time with specific network time servers? Okay, quick steps for you! * Ensure you have NTP installed. If not use the command below. For installation on Debian or Ubuntu. sudo apt-get install ntp For Redhat or CentOS. yum install ntp *

Locate

A COMPLETE GUIDE TO MIGRATE FEEDBURNER SUBSCRIBERS TO Step 5: Click on the small drop down menu located to the right of the list name and select “Import“. Step 6: In the import page, click “Upload from a CSV or TXT file“.Select the CSV file (the subscriber list exported from FeedBurner) and import it. While importing, you have to identify the column names accordingly. SIGNATURE VERIFICATION FAILED ON SPKAC PUBLIC KEY How to fix Signature verification failed on SPKAC public key. Set the environment variable OPENSSL_ENABLE_MD5_VERIFY as a workaround to allow OpenSSL to sign requests that uses MD5. As the OpenCA uses sessions, you cannot just set the environment variable on the command line. You need to set it programatically, so that whenever OpenCA uses SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

HOW TO INSERT TEXT AT THE BEGINNING OF EACH LINE IN VIM Step 1: Move cursor to the line from where you want to insert text. Step 2: Hit ESC and type ma. This step will create a marker a. Step 3: Move cursor to the line till where you want to stop inserting the text. Well, the command might look complex, but it’s something similar to using range. At Step 2, we create a new marker a. HOW TO CREATE TRIANGLES OR ARROWS USING CSS? Unlike images, CSS is lightweight and it’s quite simple to use. Today we’ll see how to create Up, Down, Left and Right arrows using pure CSS. For example, if you want to create an arrow pointing upwards, then you have three sides; the bottom, left and right. The idea is to use borders on HTML element (I’ll use div for demo);

where the

: CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

ERROR IN SUDOERS FILE? HERE'S HOW YOU CAN FIX IT Solution: The modern Ubuntu system and many other Linux distributions have made it easy to fix errors in sudoers file. Assuming you are authorized to run programs as root, execute the below command and enter your password. The command pkexec along with visudo will be executed as root and allow you to edit sudoers file. SYNC LINUX SERVER TIME WITH NETWORK TIME SERVER If you want to sync your Linux server time with specific network time servers? Okay, quick steps for you! * Ensure you have NTP installed. If not use the command below. For installation on Debian or Ubuntu. sudo apt-get install ntp For Redhat or CentOS. yum install ntp *

Locate

A COMPLETE GUIDE TO MIGRATE FEEDBURNER SUBSCRIBERS TO Step 5: Click on the small drop down menu located to the right of the list name and select “Import“. Step 6: In the import page, click “Upload from a CSV or TXT file“.Select the CSV file (the subscriber list exported from FeedBurner) and import it. While importing, you have to identify the column names accordingly. SIGNATURE VERIFICATION FAILED ON SPKAC PUBLIC KEY How to fix Signature verification failed on SPKAC public key. Set the environment variable OPENSSL_ENABLE_MD5_VERIFY as a workaround to allow OpenSSL to sign requests that uses MD5. As the OpenCA uses sessions, you cannot just set the environment variable on the command line. You need to set it programatically, so that whenever OpenCA uses SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to WORDPRESS INJECTED WITH SPAM LINKS? DIAGNOSE & PROTECT Step 4: Login to cPanel or server and navigate to wp-content/plugins folder and delete all. Step 5: Go to Dashboard > Updates and click “ Re-install Now ” button. In case, if you don’t want to do this via wp-admin, then you need to login to cPanel or via SSH to APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

8 BEST PRACTICES WITH SUDO ON LINUX Linux : Dos and Dont’s of SUDO. Note: You must use the visudo command to edit the /etc/sudoers file. Becareful while editing! 1. Do not allow unlimited access to users with sudo. Do not configure sudo to allow users to switch to root or any another account. HOW TO BLOCK ACCESS TO FACEBOOK AND TWITTER ON YOUR Block Facebook and Twitter. Step 1: To access the hosts file, you need Administrator privileges. So open the notepad in Administrator mode. Step 2: Now open the hosts file by navigating to the location as shown in the below image. Step 3: Add the below lines to hosts file and save

it.

HOW TO BLUR TEXT OR IMAGE IN MICROSOFT PAINT? Blur effect in MS PAINT. Step 1: Click Select tool from the toolbar.. Step 2: Draw an outline around or select an area that you wish to blur.. Step 3: Re-size the selected area by holding one of the edge and drag it inward to make it smaller than the original size and then drag it outward to bring it back to original size.. Step 4: Repeat Step 3, until the selected area is distorted to give a CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. FIX LESSPHP FATAL ERROR: LOAD ERROR: FAILED TO FIND [WP Safe to delete: You are only going to delete less.cache files and not the actual style-sheets. So go ahead and delete those, as the files will be generated again. ERROR WHILE RUNNING VOLATILITY SOFTWARE : FAILED TO IMPORT is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to WORDPRESS INJECTED WITH SPAM LINKS? DIAGNOSE & PROTECT Step 4: Login to cPanel or server and navigate to wp-content/plugins folder and delete all. Step 5: Go to Dashboard > Updates and click “ Re-install Now ” button. In case, if you don’t want to do this via wp-admin, then you need to login to cPanel or via SSH to HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. ERROR IN SUDOERS FILE? HERE'S HOW YOU CAN FIX IT Solution: The modern Ubuntu system and many other Linux distributions have made it easy to fix errors in sudoers file. Assuming you are authorized to run programs as root, execute the below command and enter your password. The command pkexec along with visudo will be executed as root and allow you to edit sudoers file. 8 BEST PRACTICES WITH SUDO ON LINUX Linux : Dos and Dont’s of SUDO. Note: You must use the visudo command to edit the /etc/sudoers file. Becareful while editing! 1. Do not allow unlimited access to users with sudo. Do not configure sudo to allow users to switch to root or any another account. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. HOW TO GENERATE X509 SHA256 HASH SELF-SIGNED CERTIFICATE Step 3: Verify sha256 hash function in self-signed x509 digital certificate. Now the certificate is generated, you need to verify whether the certificate is actually used sha256 hash function for encryption. Here is the OpenSSL command through which you can verify: #openssl x509 -noout -text -in techglimpse.com.crt. ERROR WHILE RUNNING VOLATILITY SOFTWARE : FAILED TO IMPORT is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to BOOK COVID-19 VACCINATION SLOT FASTER USING COWIN BOOKING Today I’m going to share my experience of booking Covid-19 vaccination slot on CoWIN portal. You might recall our experience with TicketMaster chrome extension which helped to book tickets on IRCTC.On similar lines, a chrome extension has been developed by Sushrut called Cowin Booking.With this extension, you can book covid vaccine slots

faster than ever!

WORDPRESS INJECTED WITH SPAM LINKS? DIAGNOSE & PROTECT Step 4: Login to cPanel or server and navigate to wp-content/plugins folder and delete all. Step 5: Go to Dashboard > Updates and click “ Re-install Now ” button. In case, if you don’t want to do this via wp-admin, then you need to login to cPanel or via SSH to HOW TO HIDE OR REMOVE UNWANTED APACHE HEADERS TO PROTECT It all starts from here – whenever the client requests for a page, the server sends out response data (the actual content) and some response headers as well. The header contains information such as HTTP response status, Content-Type, Content-Length, Location of the requested page, response date and time, server information and ERROR IN SUDOERS FILE? HERE'S HOW YOU CAN FIX IT Solution: The modern Ubuntu system and many other Linux distributions have made it easy to fix errors in sudoers file. Assuming you are authorized to run programs as root, execute the below command and enter your password. The command pkexec along with visudo will be executed as root and allow you to edit sudoers file. 8 BEST PRACTICES WITH SUDO ON LINUX Linux : Dos and Dont’s of SUDO. Note: You must use the visudo command to edit the /etc/sudoers file. Becareful while editing! 1. Do not allow unlimited access to users with sudo. Do not configure sudo to allow users to switch to root or any another account. CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. HOW TO GENERATE X509 SHA256 HASH SELF-SIGNED CERTIFICATE Step 3: Verify sha256 hash function in self-signed x509 digital certificate. Now the certificate is generated, you need to verify whether the certificate is actually used sha256 hash function for encryption. Here is the OpenSSL command through which you can verify: #openssl x509 -noout -text -in techglimpse.com.crt. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

: CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

SERVICE WORKERS INSTALLATION AND ACTIVATION: PWA Installation and Activation of Service Workers. The Install event begins automatically when the service worker is registered. The browsers emits and install events while the service worker is being installed. All we have to do is listen to this event from within the service worker file. Similarly, we can listen to the activate event as

well.

SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

HOW TO ENABLE FILE BROWSER MODE IN NGINX? How to enable file browser mode in Nginx? By default Nginx directory listing is disabled which is always recommended. Even then, we need to have directory listing for specific purpose and you can still enable. HttpAutoIndexModule is the module that handles the Nginx directory listing. Note: autoindex is enabled by default. DWARF ERROR: FOUND DWARF VERSION '4', THIS READER ONLY Solution: You can tell the compiler via CFLAGS to not emit DWARF4 info with ‘-gdwarf-2 -gstrict-dwarf‘. Set CFLAGS as below: # export CFLAGS='-gdwarf-2 -gstrict-dwarf' Make clean the previous build as

below: # make clean

DEPRECATED OPTION RSAAUTHENTICATION SSH REXEC [FIX From OpenSSH version 7.3+, the option "RSAAuthentication" has been deprecated, as it was only supported for SSH Protocol version 1. Also you must be aware that SSH protocol version 1 suffers design flaws and that can put SSH servers vulnerable. Hence, the SSH daemon must be configured to use only SSH protocol version 2. NAMED ERROR NETWORK UNREACHABLE IN SYSTEM LOGS [FIX To fix this error, all you need to do is open the named file located under /etc/sysconfig/ and added the said option. # vim /etc/sysconfig/named. Copy and paste the below line. OPTIONS="-4". Save the file and restart named service. # systemctl restart named. Confirm that the named service is running. # systemctl status named. APACHE ERROR: SYMBOLIC LINK NOT ALLOWED OR LINK TARGET NOT This tutorial will show you step by step procedure on how to fix the Apache Error: symbolic link not allowed or link target not accessible. CAN'T LOCATE TEST/HARNESS.PM PERL ERROR: [SOLUTION is a Web Designer and content creator. A freelance writer on latest trends in technology, gadget reviews, How to's and many more. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

: CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

BOOK COVID-19 VACCINATION SLOT FASTER USING COWIN BOOKING Today I’m going to share my experience of booking Covid-19 vaccination slot on CoWIN portal. You might recall our experience with TicketMaster chrome extension which helped to book tickets on IRCTC.On similar lines, a chrome extension has been developed by Sushrut called Cowin Booking.With this extension, you can book covid vaccine slots

faster than ever!

READ USER INPUT AND DISPLAY IT AS TOAST USING ANDROID In continuation to our tutorial on Getting started with Android studio, today lets try to create a simple app that will read a password as input and display it as Toast using Android Studio.If you were wondering what is Toast in Android, then here it is: Toast in Android provides simple feedback to the user as a small popup. SHELL-INIT ERROR RETRIEVING CURRENT DIRECTORY [FIX This tutorial explains how to fix 'Shell-init error retrieving current directory. getcwd: cannot access parent directories: No such file or

directory".

HOW TO INSERT TEXT AT THE BEGINNING OF EACH LINE IN VIM Step 1: Move cursor to the line from where you want to insert text. Step 2: Hit ESC and type ma. This step will create a marker a. Step 3: Move cursor to the line till where you want to stop inserting the text. Well, the command might look complex, but it’s something similar to using range. At Step 2, we create a new marker a. ERROR IN SUDOERS FILE? HERE'S HOW YOU CAN FIX IT Solution: The modern Ubuntu system and many other Linux distributions have made it easy to fix errors in sudoers file. Assuming you are authorized to run programs as root, execute the below command and enter your password. The command pkexec along with visudo will be executed as root and allow you to edit sudoers file. HOW TO DISABLE OR ENABLE IPV6 SUPPORT IN MOZILLA FIREFOX Now type “ipv6” in the search box at the top to filter IPv6 related settings, where you’ll find ‘ network.dns.disableIPv6 ‘ with Value as “false”. Just right click on the setting and select “Toggle” to change the Value to “true” and that will disable IPv6 on Firefox. It means, hereafter Firefox browser will always use

IPv4

FIX LESSPHP FATAL ERROR: LOAD ERROR: FAILED TO FIND [WP Safe to delete: You are only going to delete less.cache files and not the actual style-sheets. So go ahead and delete those, as the files will be generated again. : CANNOT SENDMAIL: PEER USING The Secure Socket Layer protocol (SSL) and its successor, the Transport Layer Security protocol (TLS), define how a browser or e-mail client communicates with a server using an encrypted connection

or data stream.

SIGNATURE VERIFICATION FAILED ON SPKAC PUBLIC KEY How to fix Signature verification failed on SPKAC public key. Set the environment variable OPENSSL_ENABLE_MD5_VERIFY as a workaround to allow OpenSSL to sign requests that uses MD5. As the OpenCA uses sessions, you cannot just set the environment variable on the command line. You need to set it programatically, so that whenever OpenCA uses PHP-INTL ERROR: UNABLE TO DETECT ICU PREFIX OR NO FAILED Question: Hi, I was trying to install Mediawiki on CentOS 6.6 machine. I have also installed all the dependant packages such as PHP, APC, Xcache, pecl extensions etcDuring the install, Mediawiki shown a warning as “The intl PECL extension is not available to

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