Dev {Tricks}

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Xauthority does not exist

  • /usr/bin/xauth: file /root/.Xauthority does not exist

Solution

Go into the sshd_config file

vi /etc/ssh/sshd_config

Search and remove the # sign at the beginning of the 3 lines

X11Forwarding yes
X11DisplayOffset 10
X11UseLocalhost yes

Then restart sshd

systemctl restart sshd

Exit and login again. You will not get the error.

 

Or

Create n new file: touch ~/.Xauthority

Log out and login in again.

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How to Zip and Unzip Files and Directories in Linux

  • Zip Command
  • How to zip files
  • How to zip directory / directories
  • How to Test if a ZIP File is Valid
  • How to unzip a zip
  • How to unzip a zip to a different directory

zip Command

zip OPTIONS ARCHIVE_NAME FILES

To zip one or more files

zip archive-name.zip filename1 filename2 filename3

Create a zip archive of a directory including the content of sub-directories. The -r option allows to traverse the whole directory structure recursively:

To zip one directory including sub-directories.

zip -r archive-name.zip directory-name

To add multiple files and directories in the same archive

zip -r archive-name.zip directory-name1 directory-name2 file1 file2

How to Test if a ZIP File is Valid

unzip -t archive-name.zip

This is useful if you think the zipped file has been damaged or corrupted.

To extract a zip file in the same directory

unzip archive-name.zip

To extract a zip file to a different directory

unzip -d archive-name.zip /path-to-unzip

The –d switch tells the system to put the unzipped files somewhere else.

To overwrite unzipped files/folders

unzip -o archive-name.zip

 

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How to Install WordPress through webmin?

How to install WordPress on Webmin – Virtualmin and Usermin

  • Login to your Webmin Account where you want to install WordPress
  • Go to Virtualmin tab
  • Click on “Install Scripts”
  • You will find “WordPress” in the Available Scripts tab. Select it.
  • Click on “Show Install Options”
  • Now select or enter installation directory or sub-directory under public_html.
    • At top level
    • WordPress (directory)
  • Click on “Install now”
  • Confirm and click “Install now”
    • Are you sure you want to install WordPress into the directory /home/username/public_html? 4 files totalling 2.81 MiB already exist, and will be deleted if the script is un-installed.
  • Click on the link
    • WordPress initial installation finished. It can be completed at https://domain.com/wp-admin/install.php.
  • Select Language
  • Provide information needed
    • Welcome to the famous five-minute WordPress installation process! Just fill in the information below and you’ll be on your way to using the most extendable and powerful personal publishing platform in the world.
  • Click on “Install WordPress”
  • That’s ALL!

 

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How to install webmin, usermin, virtualmin

Install your Operating System

List of supported OS:

  • CentOS/RHEL Linux 7, and 8 on x86_64
  • Debian 9, and 10 on i386 and amd64
  • Ubuntu 16.04 LTS, 18.04 LTS, and 20.04 LTS on i386 and amd64

How to install Virtualmin/Webmin control panel in CentOS 7?  

Login to your server as root and follow the steps

  1. Let us update the packages before starting the installation process. 
    yum -y update
  2. Download the installer file with the below command for Virtualmin/Webmin control panel on CentOS 7. 
    wget http://software.virtualmin.com/gpl/scripts/install.sh
  3. Run the installer now with the below command. 
    chmod +x install.sh && ./install.sh
  4. You will be prompted. 
    Continue? (y/n)
  5. Write “y” and hit enter. The installation will start and it may take about 10-15 minutes to finish. 
    [INFO] Started installation log in /root/virtualmin-install.log
▣□□ Phase 1 of 3: Setup
Downloading RPM-GPG-KEY-virtualmin-6 [ ✔ ]
Downloading RPM-GPG-KEY-webmin [ ✔ ]
Installing Virtualmin 6 key [ ✔ ]
Installing Webmin key [ ✔ ]
Updating apt metadata [ ✔ ]
Downloading repository metadata [ ✔ ]
Enabling universe repositories, if not already available [ ✔ ]
Disabling cdrom: repositories [ ✔ ]
Cleaning out old metadata [ ✔ ]

▣▣□ Phase 2 of 3: Installation
Installing Webmin [ ✔ ]
Installing Usermin [ ✔ ]
Installing fail2ban [ ✔ ]
Removing nginx (if installed) before LAMP installation. [ ✔ ]
Removing unneeded packages that could conflict with LAMP stack. [ ✔ ]
Installing postfix [ ✔ ]
Installing virtualmin-lamp-stack [ ✔ ]
Installing Virtualmin and plugins [ ✔ ]
3 Feb 16:49:24 ntpdate[53399]: adjust time server 91.189.89.199 offset -0.000487 sec
Installing updates to Virtualmin-related packages [ ✔ ]

▣▣▣ Phase 3 of 3: Configuration
[1/23] Configuring AWStats [ ✔ ]
[2/23] Configuring Apache [ ✔ ]
[3/23] Configuring Bind [ ✔ ]
[4/23] Configuring ClamAV [ ✔ ]
[5/23] Configuring Dovecot [ ✔ ]
[6/23] Configuring Firewalld [ ✔ ]
[7/23] Configuring MySQL [ ✔ ]
[8/23] Configuring NTP [ ✔ ]
[9/23] Configuring Net [ ✔ ]
[10/23] Configuring ProFTPd [ ✔ ]
[11/23] Configuring Procmail [ ✔ ]
[12/23] Configuring Quotas [ ✔ ]
[13/23] Configuring SASL [ ✔ ]
[14/23] Configuring Shells [ ✔ ]
[15/23] Configuring SpamAssassin [ ✔ ]
[16/23] Configuring Status [ ✔ ]
[17/23] Configuring Upgrade [ ✔ ]
[18/23] Configuring Usermin [ ✔ ]
[19/23] Configuring Webalizer [ ✔ ]
[20/23] Configuring Webmin [ ✔ ]
[21/23] Configuring Fail2banFirewalld [ ✔ ]
[22/23] Configuring Postfix [ ✔ ]
[23/23] Configuring Virtualmin [ ✔ ]
▣▣▣ Cleaning up

[SUCCESS] Installation Complete!
  6. Now login to your webmin panel at https://serverip:10000 and create new virtual server. You may receive a security warning in your browser on your first visit.
    • You will be prompted for Post-Installation Wizard. Click on the next and select the appropriate setting for your system.
    • Install default virtual server and let’s Encrypt SSL
  7.  Multiple PHP Versions