How to clear disk space on cPanel server

By default drives will come with 5% of all filesystems allocated as reserved disk space allocated for privileged users, and not shown as available space.

Since drives in use today tend to be large, reserved block percentage can be lowered to 1%, or specified to specific number of block.

To set the reserved space to 2500 blocks “tune2fs -r 2500” can be used.

tune2fs -r 2500 /dev/sda5

To set reserved space to 1% of disk size “tune2fs -m 1” can be used.

tune2fs -m 1 /dev/sda5

Files that can be cleared by main partitions/folders, to reduce disk usage on cPanel servers:

Reduce /home usage

Several files and folders can be truncated or removed on /home.

When EasyApache is run, it will leave file behind, that were used for Apache/PHP build, that can be removed if space is needed.

EasyApache files can be removed with following command.

rm -rfv /home/cpeasyapache

cPanel FileManager can leave temporary files, that were created during user uploads.
These can be removed with following command:

rm -fv /home/*/tmp/Cpanel_*

If you were moving any accounts to the server with WHM Transfer Tool, temporary account migration files can be left on drive.

These can be removed with following command:

rm -rvf /home*/cpanelpkgrestore.TMP*

Disk space can be recovered by deleting Softaculous and Fantastico backups from user folders, if they are used.

rm -fv /home*/*/.softaculous/backups/*
rm -rfv /home/*/fantastico_backups

If you were making cpmove file manually, they will by default be created inside /home.
You can clean any leftover cpmove files with following command:

rm -rvf /home/cpmove-*

Often large portions of disk space can be used up by large error_log files inside account home folders.

You can empty all error_log files to 0 bytes usage with following command:

find /home/ -name error_log -type f -print -exec truncate --size 0 "{}" \;

If users have large number of account backups in their home folders, those can use up a lot of space.

Accounts backups can be removed from user folders with following command:

for user in `/bin/ls -A /var/cpanel/users` ; do rm -fv /home/$user/backup-*$user.tar.gz ; done
Summary of all used commands, for clearing /home
#Emtpy all error logs
find /home/ -name error_log -type f -print -exec truncate --size 0 "{}" \;
#Remove EasyApache files
rm -rfv /home/cpeasyapache
#Remove Softaculous backups
rm -fv /home*/*/.softaculous/backups/*
#Remove account backups
for user in `/bin/ls -A /var/cpanel/users` ; do rm -fv /home/$user/backup-*$user.tar.gz ; done
#Remove Fantastico backups
rm -rfv /home/*/fantastico_backups
#Remove temporary cPanel files
rm -fv /home/*/tmp/Cpanel_*
#Remove any cpmove files
rm -rvf /home/cpmove-*
#Remove temporary account migration files
rm -rvf /home*/cpanelpkgrestore.TMP*
Reduce /var usage

Disk space in /var can be cleared by deleting archived logs, which will usually end with .gz, or contain year inside their name, like such as “maillog-20161113”.

Archived logs can be cleared with following commands:

rm -fv /var/log/*.gz
rm -fv /var/log/*201*

Disk space in /var can get also get used up by core dump files inside /var/spool/abrt/ directory, which get created in cases of kernel panic.

These file can be cleared up with following command:

rm rfv /var/spool/abrt/*

Check the size of exim stats database, which can sometimes take several gigabytes in size, depending on settings:

du -sh /var/lib/mysql/eximstats/

In case eximstats database is large, consider emptying the database, and changing retention settings.

How to clear or disable eximstats on cPanel

Reduce /usr usage

Disk space in /usr can be cleared by removing cPanel and Apache archived logs, or old installation files of Apache, and if installed, maldet.

Every time you rebuild Apache with EasyApache, old installation files will be moved to “apache.backup*” directory.

Remove old Apache files with following command:

rm -rfv /usr/local/apache.backup*

Similar thing happens with maldet, if it is installed, on updates, old installation will be moved to “maldet.bk*” folder.

Remove old maldet files with following command:

rm -rfv /usr/local/maldet.bk*

Clear disk space by removing archived cPanel logs:

rm -fv /usr/local/cpanel/logs/archive/*.gz

Remove archived Apache logs:

rm -fv /usr/local/apache/logs/*.gz
rm -fv /usr/local/apache/logs/archive/*.gz

Although not often, sometimes maldet logs can use up a lot of space.
Remove maldet logs:

rm -fv /usr/local/maldetect/logs/*
Summary of all used commands, for clearing /usr
#Remove old Apache files
rm -rfv /usr/local/apache.backup*
#Remove old maldet files
rm -rfv /usr/local/maldet.bk*
#Remove maldet logs
rm -fv /usr/local/maldetect/logs/*
#Remove archived cPanel logs
rm -fv /usr/local/cpanel/logs/archive/*.gz
#Remove archived Apache logs
rm -fv /usr/local/apache/logs/*.gz
rm -fv /usr/local/apache/logs/archive/*.gz
References:

How to Free Up Disk Space on a cPanel Server

11 Ways to Free Up Disk Space on a cPanel Server

How to Install ionCube Loader 5 on cPanel/WHM server

At this moment cPanel does not support ionCube Loader 5 on WHM/cPanel servers, which will cause issues for client running files made with ionCube v9.

cPanel currently installs ionCube PHP Loader v4.7.5, when you install PHP using cPanel EasyApache utility.

Your standard php -v output on cPanel server might look something like this.

[email protected] [~]# php -v
PHP 5.4.45 (cli) (built: Dec 14 2015 17:18:43)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
with the ionCube PHP Loader v4.7.5, Copyright (c) 2002-2014, by ionCube Ltd.

If you want to install, or upgrade current ionCube PHP Loader on your server to version 5, you can do so manually by downloading the latest version from http://www.ioncube.com/loaders.php, and editing your global or account custom php.ini file.

How to install ionCube Loader manually on cPanel or standard Linux servers with no control panel.

Download the latest loader to your server from http://www.ioncube.com/loaders.php.

If you are running 32 bit server used the following command:

wget http://downloads3.ioncube.com/loader_downloads/ioncube_loaders_lin_x86.tar.gz

If you are running 64 bit server use the following command:

wget http://downloads3.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz

Unpack the package:

On 32 bit server:

tar xvzf ioncube_loaders_lin_x86.tar.gz

On 64 bit server:

tar xvzf ioncube_loaders_lin_x86-64.tar.gz

It will create ioncube folder in the same directory where you downloaded the file.

If you need to install ionCube Loader for PHP 5.4  you will use ioncube_loader_lin_5.4* files, and if you need to install it for PHP 5.5 you will use ioncube_loader_lin_5.5* files, and similar for other PHP versions.

[email protected] [~]# ls ioncube
./                             ioncube_loader_lin_4.4_ts.so*  ioncube_loader_lin_5.3.so*     ioncube_loader_lin_5.6_ts.so*
../                            ioncube_loader_lin_5.0.so*     ioncube_loader_lin_5.3_ts.so*  LICENSE.txt
ioncube_loader_lin_4.1.so*     ioncube_loader_lin_5.0_ts.so*  ioncube_loader_lin_5.4.so*     loader-wizard.php
ioncube_loader_lin_4.2.so*     ioncube_loader_lin_5.1.so*     ioncube_loader_lin_5.4_ts.so*  README.txt
ioncube_loader_lin_4.3.so*     ioncube_loader_lin_5.1_ts.so*  ioncube_loader_lin_5.5.so*     USER-GUIDE.md
ioncube_loader_lin_4.3_ts.so*  ioncube_loader_lin_5.2.so*     ioncube_loader_lin_5.5_ts.so*  USER-GUIDE.txt
ioncube_loader_lin_4.4.so*     ioncube_loader_lin_5.2_ts.so*  ioncube_loader_lin_5.6.so*
[email protected] [~]#

To replace the ionCube Loader for all the users on the server, you can just replace the extension file defined in the global php.ini at /usr/local/lib/php.ini

[email protected] [~]# grep zend_extension /usr/local/lib/php.ini
zend_extension="/usr/local/IonCube/ioncube_loader_lin_5.4.so"
[email protected] [~]#

You can rename the original file, for restore purposes, if something goes wrong, and place the new version file from ioncube folder that was created with package extraction.

mv /usr/local/IonCube/ioncube_loader_lin_5.4_ts.so /usr/local/IonCube/ioncube_loader_lin_5.4_ts.so_cporig
mv /usr/local/IonCube/ioncube_loader_lin_5.4.so /usr/local/IonCube/ioncube_loader_lin_5.4.so_cporig
cp ioncube/ioncube_loader_lin_5.4.so /usr/local/IonCube/
cp ioncube/ioncube_loader_lin_5.4_ts.so /usr/local/IonCube/

You can confirm the new version of ionCube Loader with php -v, and look for “ionCube PHP Loader” part of the output.

[email protected] [~]# php -v
PHP 5.4.45 (cli) (built: Dec 14 2015 17:18:43)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
    with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v5.0.19, Copyright (c) 2002-2015, by ionCube Ltd.
[email protected] [~]# php -v | grep "ionCube PHP Loader"
    with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v5.0.19, Copyright (c) 2002-2015, by ionCube Ltd.
[email protected] [~]#

Upgrade to ionCube Loader 5 on one cPanel account.

If you wanted to change the ion Cube Loader version for only one cPanel account, you can place the ioncube_loader_lin* files for the PHP version used by your client to some custom folder, and define zend_extension values inside a custom php.ini folder on a specific cPanel account.

tl;dr

ionCube Loader can be installed manually on any Linux server with following steps:

  1. Download latest version of ionCube Loaders from http://www.ioncube.com/loaders.php
  2. Unpack the downloaded package
  3. move the ioncube_loader_lin_* files for your PHP version to your extension folder.
  4. Point to the corresponding file in your php.ini file, example
    zend_extension="/usr/local/IonCube/ioncube_loader_lin_5.4.so"