Linux Servers cPanel webhosting blog » Linux Permissions

Server wide permission issue after enabling suphp

Gunjan — Sun, 22 Jan 2012 09:24:01 +0000

After enabling the suphp on the server,many time 500 Internal Server Error occur due to the incorrect permission,ownership and incorrect php module defined in the .htaccess file and we can’t make the changes manually therefore we can use the following script to make the all the changes server.

linux7802@server[~]#cat /root/suphppermission.sh

#!/bin/bash

# Reset the directory permissions.
chmod 755 /opt/suphp
find /opt/suphp -type d -exec chmod 755 {} \;

# Reset permission,ownership for cPanel user
for user in `/bin/ls /var/cpanel/users`; do

chown -R ${user}:${user} /home/${user}/public_html
chmod 755 /home/${user}/public_html
find /home/${user}/public_html -type f -exec chmod 644 {} \;
find /home/${user}/public_html -type d -exec chmod 755 {} \;

# Remove php_values in the .htaccess file.
find /home/${user}/public_html -name ‘.htaccess’ -exec sed -ie ‘s/php_value/#php_value/’ {} \;
find /home/${user}/public_html -name ‘.htaccess’ -exec sed -ie ‘s/php_flag/#php_flag/’ {} \;
done

If you have any issue to copy the above content the download the script from following URL
scr

SuExec server permission issue?

Gunjan — Sat, 03 Jul 2010 21:56:09 +0000

After enabling SuExec on server most users getting “500 Internal Server Error” at that time refer following steps.

1st) Correct cPanel users files/directories ownership.

——

for i in `cat /etc/trueuserdomains | awk ‘{print $2}’`
do
chown $i.$i /home/$i -R;
chown $i.mail /home/$i/etc -R;
chown $i.nobody /home/$i/public_html;
done;

—–

2nd) Correct permission for files and directories for cPanel users from shell but make sure that you logged in as root user and running following command in /home partition.

—–

find . -type d -perm 777 -exec chmod 755 {} \;

find . -type f -perm 644 -exec chmod 755 {} \;

—–

Horde session issue?

Gunjan — Wed, 27 Jan 2010 14:33:39 +0000

There is a very common issue where Horde prevents access to webmail by repeatedly redirecting viewers to Language Selection screen. The following commands, executed as root, will solve these issues:

root@server[~]#/usr/local/cpanel/bin/checkperlmodules
root@server[~]#/scripts/fullhordereset
root@server[~]#myisamchk -r /var/lib/mysql/horde/horde_sessionhandler.MYI

If still you have problem then check the ownership for session directory present in /var/cpanel/userhomes/cpanelhorde directory.

root@server[~]#ll /var/cpanel/userhomes/cpanelhorde

drwx–x–x 4 cpanelhorde cpanelhorde 4096 Jun 5 2009 ./
drwx–x–x 7 root root 4096 Dec 17 01:48 ../
drwxr-x— 2 cpanelhorde cpanelhorde 4096 Jun 5 2009 mail/
drwx—— 2 cpanelhorde cpanelhorde 4096 Jan 27 14:01 sessions/
Session directory should be cpanelhorde.cpanelhorde ownership recursively

Problem with cgi script?

Gunjan — Tue, 13 Oct 2009 03:29:22 +0000

Most of the time cgi script is not working properly after uploading by using FTP but script is working fine on local machine, why?

Because you need to be upload cgi script in ASCII Mode and Perl in BINARY Mode to run it without any problem.

How to disbale Directory listing for folders?

Gunjan — Tue, 01 Sep 2009 22:47:48 +0000

To disable the Directory listing for folders you need to create the .htaccess file under the each an every folder under which you want to disable the Directory listing and insert the following code in .htaccess file.

————
Options -Indexes
————

Please contact us if you have any problem or queries…..

What is crontab correct permission?

Gunjan — Fri, 31 Jul 2009 19:38:44 +0000

The crontab correct permission is 4755 and you can check the crontab binary path and set the correct permission by using the following command from the shell.

root@admin#[~] # which crontab

/usr/bin/crontab

chmod 4755 /usr/bin/crontab

How to check world-writable files on Server?

Gunjan — Fri, 24 Jul 2009 20:42:19 +0000

You can check the world-writable files on your Server by using the following command from shell.

admin@root# find / -perm -2 ! -type l -ls

How to check SUID/SGID programs on your Server?

Gunjan — Fri, 24 Jul 2009 20:38:52 +0000

You can check SUID/SGID programs on your systemSUID/SGID programs on your Server by using following command from your shell.

admin@root# find / -type f $ -perm -04000 -o -perm -02000 $