Dev {Tricks}

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The tar command is not available | DirectAdmin

Problem:

  • The tar command is not available. Please correctly configure it in your “config.inc.php”.

There are two possible solutions of the above problem, your path to Tar tool is not correct, or the system can’t access to the path. In my case, I have both problems, so:

Solution One: Fixing the path of Tar

Open your terminal

Type which tar or whereis tar

which tar

or

whereis tar

Then use the path it returns in config.inc.php. For example,

tar = /usr/bin/tar

Still receiving the same error message, follow the second step.

Solution Two:

  1. Login to DirectAdmin admin panel.
  2. Go to “Server Manager > PHP Configuration (or PHP Settings). Select the domain you want to modify and
  3. Select the option “Disable Open Basedir”

Still getting error? Follow next step.

Solution Three:

You may get one of the following issues.

  • The “exec” PHP function has been disabled on your server. Contact your system administrator to enable it.
  • The uploaded plugin archive does not contain a folder that corresponds to the plugin name.

To fix the problems, you have to enable exec() function by deleting from the disable_functions

Go to link How to enable exec()

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How to Resize a Partition using fdisk

Prerequisites

  • Existing partition that you know the name. To check the name, run cat /etc/fstab.
  • The partition you want to resize have to be the last partition on a particular disk.
  • Note that the partition not in use.

Warning

All data will be erased on the partition.

Procedure

Suppose we are re-partitioning /dev/vdb1

  1. Remove the partition from fstab 
    vi /etc/fstab
  2. Unmount the partition 
    umount /dev/vdb1
  3. Run 
    fdisk /dev/vdb1

    Welcome to fdisk (util-linux 2.23.2).

    Changes will remain in memory only, until you decide to write them. Be careful before using the write command.

    Command (m for help):

 

 

 

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8 common errors that you may have after installing CSF Firewall on Linux CentOS server

  1. *WARNING* Binary location for [CHATTR] [/usr/bin/chattr] in /etc/csf/csf.conf is either incorrect, is not installed or is not executableTo solve this problem, we need to install Ext2 Filesystem Utilities package. Run the following command to install the E2fsprogs package. 
    yum install e2fsprogs
  2. Oops Unable to download Protocol scheme ‘https’ is not supported (IOSocketSSL not installed)If CSF failed to update, then this error occurs. To fix this issue run 
    yum install perl-Crypt-SSLeay perl-Net-SSLeay

    Then try updating CSF.

    csf -u
  3. Oops Unable to download Protocol scheme ‘https’ is not supported (LWPProtocolhttps not installed)
  4. Testing ip_tablesiptable_filter…open3 exec of sbiniptables -I OUTPUT -p tcp –dport 9999 -j ACCEPT failed at usrlocalcsfbincsftest.pl line 144.
  5. *WARNING* Binary location for [SENDMAIL] [/usr/sbin/sendmail] in /etc/csf/csf.conf is either incorrect, is not installed or is not executable*
    WARNING* Missing or incorrect binary locations will break csf and lfd functionality
  6. *WARNING* Binary location for [UNZIP] [usrbinunzip] in etccsfcsf.conf is either incorrect, is not installed or is not executable
  7. *WARNING* URLGET set to use LWP but perl module is not installed, reverting to HTTP::Tiny
  8. *WARNING* Binary location for [HOST] [usrbinhost] in etccsfcsf.conf is either incorrect, is not installed or is not executable

 

 

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how to know file size in linux command

ls command for files
du command for directories

Checking File Size

ls -l filename #Displays Size of the specified file
ls -l * #Displays Size of All the files in the current directory
ls -al * #Displays Size of All the files including hidden files in the current directory
ls -al dir/ #Displays Size of All the files including hidden files in the ‘dir’ directory

Checking Directory size

du -sh directory_name #Gives you the summarized(-s) size of the directory in human readable(-h) format
du -bsh * #Gives you the apparent(-b) summarized(-s) size of all the files and directories in the current directory in human readable(-h) format

For more information see man ls and man du

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Transfer a domain from one user to another | DirectAdmin

Create new user with fake domain name, if the user does not exist. Then run below script.

cd /usr/local/directadmin/scripts
./move_domain.sh domain.com olduser newuser

domain.com = The domain you want to transfer
olduser = Current username of the domain
newuser = New username

NB: https://help.directadmin.com/item.php?id=58