Dev {Tricks}

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How to create su user on Linux

  1. First add the user, run: 
    sudo adduser <UserNameHere>
  2. Add the user to sudo group by typing the command in terminal for Ubuntu version 12.04 and above: 
    sudo adduser <UserNameHere> sudo
  3. In an older version of Ubuntu (version 12.04 and older), run: 
    sudo adduser <UserNameHere> admin
  4. Verify it: 
    id <UserNameHere>

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How to install CyberPanel

  • How to install Cyberpanel on Ubuntu 20.04
  • Installing a Laravel script in CyberPanel

Server-side requirements

  • Server with a fresh install of Centos 7.x (Not recommended for new installs), Centos 8.x, Ubuntu 18.04, Ubuntu 20.04, AlmaLinux 8, Ubuntu 22.04
  • Python 3.x
  • 1024MB RAM, or higher
  • 10GB Disk Space

Installing CyberPanel

Step 1: Connect to your server via SSH

Step 2: Update packages

For Ubuntu: sudo apt update && sudo apt upgrade -y
For CentOS/Alma/Rocky:

sudo yum check-update
sudo yum update

Step 3: Run the installation script

sh <(curl https://cyberpanel.net/install.sh || wget -O - https://cyberpanel.net/install.sh)

If, for some reason, you are not able to log in as root, you can use this command

sudo su - -c "sh <(curl https://cyberpanel.net/install.sh || wget -O - https://cyberpanel.net/install.sh)"

Step 4: Installation option of CyberPanel.

1. Install CyberPanel with OpenLiteSpeed. (comes with OpenLiteSpeed and is completely free for an unlimited number of domains and worker processes.)

2. Install Cyberpanel with LiteSpeed Enterprise. (comes with LiteSpeed Web Server Enterprise and it is free for 1 domain. The CyberPanel license includes the price of your LiteSpeed Enterprise license.)

Step 5:

Next step you can agree (or disagree) to install memcached, Redis and watchdog service;

Step 6: Finalize Installation

At the end of the installation process, you will be presented with login details.

Restart Server and Login to CyberPanel

URL: https://:8090
Username: admin
Password:

Cyberpanel Upgrade to latest version

sh <(curl https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh || wget -O - https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh)

Cyberpanel Global PHP or PHP Cli version change

apt-get install libzip-dev

Or

ln -s /usr/bin/php /usr/local/lsws/lsphp74/bin/php

How to install new PHP version in Cyberpanel.

Login to your OpenLitespeed webpanel of Cyberpanel, at the following port:

https://YOUR_IP:7080

Username is admin
Password you get it with this command:

You can find the password for admin by running

cat /etc/cyberpanel/webadmin_passwd

At the OLS web admin, on left menu go to:
Tools → Compile PHP → PHP 7.0.33 → Next → Select “memcached” → Next → Next

Then run the command shown in the previous step, which should be:

sudo /usr/local/lsws/phpbuild/buildphp_manual_run.sh

Error “mcrypt.h not found. Please reinstall libmcrypt”, install it by using:

Ubuntu:

apt install libmcrypt-dev -y

CentOS / Alma / Rocky

yum install libmcrypt-dev -y

Error: Please reinstall the libzip distribution

apt-get install libzip-dev

That will take some time depending on your server speed.
Some errors may appear, i didn’t tested it.
In case other errors show up, show us the last lines from detailed log.

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How to Reset Laravel Admin Password directly at phpMyAdmin

  1. SSH to root
  2. Go to public_html
  3. run following command 
    php artisan tinker
  4. You will get >>>
  5. Run following command 
    echo Hash::make('new-plaintext-password)
  6. You will get output like 
    $2y$10$qlKmS6UBzl/YEwIzhaZOG.HmhOi1jlMj67zPTDgKFOS3/eKyR55jm
  7. Copy the output and replace it with the password field.

Note that “new-plaintext-password” is you admin password.

Clear Laravel Cache

php artisan config:cache

 

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Invalid JSON Error in WordPress

  • An error has occurred: The response is not a valid JSON response.
  • Updating Failed. The Response is Not a Valid JSON Response

1. Check the WordPress URLs in Settings > General

WordPress Address (URL)
Site Address (URL)

2. Fix the WordPress Permalink Structure

Go to Settings » Permalinks

Save Changes

3. Regenerate the WordPress .htaccess File

4. Check WordPress Site Health tool.

Go Tools » Site Health

Take necessary actions.

5. Deactivate All WordPress Plugins

WordPress plugins may conflict with each other or the WordPress core software. Deactivate all WordPress plugins and then activate them one by one and check.

6. If all the above test fails, then temporarily Switch to the Classic Editor and check.

7. Further Troubleshoot switching to a Default WordPress Theme

8. Temporarily Turn Off Website Application Firewall

9. Turn On Debugging in WordPress

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );

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How to install Softaculous on a VPS/Dedicated server with cPanel/WHM

1. Log into your WHM as a root user.

2. Enable ioncube in Tweak Settings under cPanel PHP Loader

Installing Softaculous

3. Log into your server via SSH and run

wget -N https://files.softaculous.com/install.sh

4. Once downloaded, proceed with the following commands

chmod 755 install.sh
./install.sh

5. When complete, go to the WHM > Plugins > Softaculous – Instant Installs and update license.