Tek Guru

chrome developer tools

How to edit any webpage in chrome or any modern browser

Modern browsers support “document.designMode” feature which allows users to edit the webpages like a simple document. No need for an extension or programming knowledge. Let’s see how to edit any webpage in chrome or any modern browser. These edits are short-lived i.e. only up to when

install python 3 in centos 7

How to install Python 3 on CentOS 7

Python is a popular, stable, and trending programming language. Many different Linux distributions use it, including CentOS 7. CentOS 7 by default uses Python 2.7.5, but as Python has updated to 3.9.x. , this can create challenges when you try to install most latest versions of Django

reset roles in wordpress

How to reset user roles in Wordpress

If your website is redirecting back to the main page after logging in to the dashboard, it is confirmed that there are some issues with permissions assigned for your logged-in user. This can be a result of a problematic plugin or role-editors/managers you have installed. Luckily, we have wp-cli

CMS and Scripts

Overview of the new LiteSpeed Cache for Wordpress plugin

LiteSpeed has updated its LiteSpeed Cache for WordPress plugin to version 3.0.8.3 around 12 hours ago (at the time of writing) with some amazing features and integration to QUIC.CLOUD, a complete WordPress CDN with static and dynamic code caching features. We will see a detailed overview

Control panels

Best way to Temporary Allow-Deny IP addresses in CSF

  CSF is the most commonly used firewall with many control panels on Linux based servers. CSF acts as a wrapper over IPTables or the IPSET and provides a more convenient way to manage them graphically or cli based. In this article, we will see which are the best ways

Cloud & DevOps

Git cheat sheet

In this article, I am providing a Git Cheat Sheet which I use for my reference. Git is a powerful and simple tool with a small learning curve. The commands are not confusing and less in number. Go through the below reference tables. Git cheat sheet The commands are distributed

best practices to use git

Tips and Best Practices for version control using GIT

In this article, we will discuss some of the tips and best practices for version control using GIT By far, Git is the most widely used version control system in the world. It is actively maintained OSS project. I don’t know how many of you know but the project

backups to google drive

Script to upload CyberPanel backups to Google Drive

In this article, we are discussing a bash script to upload CyberPanel backups to Google Drive. CyberPanel is one of the best opensource control panels and supports openlitespeed web server out of the box. It’s enterprise editions supports LiteSpeed Enterprise editions. More details can be found on their

2fa

turn off 2fa in whm using ssh command line

As many of you know about the “Two Factor Authentication”, a great security feature available in WHM/cPanel. Recently, I tried to log in to WHM with 2FA and it was not working. Let’s see how to Turn off 2FA in WHM using SSH Command Line. Searching for solutions

dd

Wipe the first and last sectors of a disk using dd

Hey Guys, While repartitioning or installing OS on a disk which was already used in a software RAID array may show an error “disk contains BIOS metadata error” occasionally. Normally this can be fixed by doing a wipe the first and last sectors of a disk using dd. Also, the

cachet status page

Set up service status page using Cachet

Set up service status page using Cachet Cachet Logo In this article, we will see how to set up service status page using Cachet, an open source alternative to statuspage.io or status.io. Any tech businesses, startups or companies that provide its services over the internet should always be

Network issues

RTNETLINK answers: File exists error when restarting network

RTNETLINK answers: File exists error  happens often when we edit the network interface file with a new IP / gateway and try to bring back the interface online. Point to note is that we can’t have more than one gateway in the network interfaces. In fact, we cannot have

firmware update

How to upgrade LSI MegaRaid SAS controller firmware using FreeDOS

This article shows how to upgrade firmware for LSI MegaRaid SAS controller using a FreeDOS and firmware update downloaded from their official website. In this write-up, we use LSI MegaRaid SAS 9260-4i controller. You can always find the controller model by entering into the webBIOS option of MegaRaid controller while

errors linux

Using mcelog to detect hardware issues in Linux

mcelog is a tool that helps in finding out hardware errors especially memory, IO, and CPU hardware errors and supports both the x86 and x86_64 platforms since Kernel 2.6 . From the mcelog.org ( the official website for mcelog ), The mcelog daemon accounts memory and some other errors errors

Server Administration

Prioritize IPv4 over IPv6

Hey, Lets check out how to prioritize IPv4 over IPv6 in CentOS / Ubuntu in this article. By default, if there is a IPv6 configuration in the network interface or configurations, the OS will try to establish connections over IPv6 than IPv4. If we dont have or dont want IPv6 or

centos 7

Warning: /dev/root does not exist while installing centos 7

While installing centos 7, You may encounter error like “Warning: /dev/root does not exist”. *> dracut-initqueue[685]: Warning: Could not boot > dracut-initqueue[685]: Warning: /dev/root does not exist* To fix this, when the dracut shell becomes available, create a directory: mkdir /mnt/ Mount different block

apache windows

Installing Apache and PHP manually in Windows server 2012/2008

Installing Apache 2.4.x and PHP 5.6.x manually in Windows server 2012/2008 64 bit versions In this article, I am explaining the steps to install Apache 2.4.x and PHP 5.6.x in Windows Server 2012/2008 Standard 64 bit edition manually from source.

Control panels

Plesk Horde Error : unable to create VFS directory /.horde/imp

Hi Guys, I came across an error which is not common with the latest versions of Plesk. However, Horde mail client was showing errors while trying to add an attachment to the email while composing it. unable to create VFS directory /.horde/imp In order to fix you, please check

Apache fails to start

No space left on device: Couldn't create accept lock - Apache fails to start

Hey Guys, This is a rare case of Apache issue but can happen particularly in a VPS environment. The HTTPd services will be found dead and it fails to start/restart. In the logs, you will find an error similar to the one in the snippet below. [emerg] (28)No

Server Administration

How to change Timezones on common webmail clients

  Login to webmail of the domain For Squirrelmail webmail click on Options >> – Personal Information >> Timezone Options. update your time & Save it ! For roundcube webmail click on setting >> Preferences >> User Interface >> Timezone Options. update your time & Save

Control panels

Requires ionCube PHP Loader Error on cpanel

Hello Guys, If you came across such an error like /home/username/public_html/somefile.php Try adding the ioncube loader .so in the custom php.ini  (create / edit php.ini under your directory. If needed, refer it in .htaccess with SetEnv PHPRC /path/to/php.ini ) if your hosts

CMS and Scripts

How to turn off magic quotes gpc for Joomla 3

Here are few solution that may help if you are getting error “Magic quotes needs to be turned off ” while logging to administrator panel for joomla or while installing Joomla and shows error on requirement check. Here are the few tips on “How to turn off magic

CMS and Scripts

How to increase the maximum file upload size in wordpress

How to increase the maximum file upload size in wordpress. Hopefully, This applies to several scripts as well. There are many ways to get this done. The difference is the way , the hosting providers or the server supports. Way 1 : Custom php.ini Adding php variables in a custom php.

non www to www in cpanel

how to redirect all non www traffic to www in .htaccess as well as web.config

  The below post shows how to redirect all non www traffic to www. For e.g. from just teksupport.in to www.teksupport.in .htaccess in linux In Cpanel or Linux servers , We can do this just by adding following rewrite rules on .htaccess RewriteEngine On RewriteCond %{HTTP_HOST}

CMS and Scripts

HTTP Error while uploading media on wordpress

This post shows to how to solve http error while uploading media files on wordpress dashboard. Fix 1 Try changing PHP versions if the multiple PHP versions are supported on control panel . Fix 2 Most common issues for the newer wordpress versions is the issue with ImageMagick. ImageMagick is the