I have accidentally run the
chmod commands on Plesk installation directory. How do I restore the permissions and ownerships to what they are supposed to be?
In general ownerships and permissions can be restored using this article:
113989 How to restore permissions and ownerships for system files and folders to default
But if you modified them for some specific packages only, you may speed up the commands used there. For instance, if you modified only PP installation directory, you may run these commands in order to bring everything back to order:
Permissions and ownerships can be reset to their default settings using the following commands:
for p in $(rpm -qa | grep plesk); do rpm --setugids $p; done for p in $(rpm -qa | grep psa); do rpm --setugids $p; done for p in $(rpm -qa | grep plesk); do rpm --setperms $p; done for p in $(rpm -qa | grep psa); do rpm --setperms $p; done
Note: The order in which you execute the commands is important. When changing permissions and ownerships on files, always change the ownerships first, and then the permissions. Otherwise, if the files have a SUID bit set, for example, it (the bit set) may get cleared.
Note 2: In some cases, even after running the above commands, the ownerships for some files or folders may still be incorrect. Make sure you check these lists:
/usr/local/psa/version /etc/psa/.psa.shadow /usr/local/psa/admin/sbin/
You can also verify the correctness of the ownerships you have reset by comparing them with those on a working server.
Sometimes Mailman still fails to work after applying the above solution. You may see these messages in the maillog:
Jul 12 00:37:23 159 qmail: 1342049843.229677 delivery 3: deferral: Uh-oh:_.qmail_file_is_writable._(#4.7.0)/ Jul 12 00:37:23 159 qmail: 1342049843.229737 status: local 4/10 remote 1/20
There are 3 possible ways of resolving it:
Run following set of commands:
rpm --setugids mailman-<INSTALLED_VERSION> rpm --setperms mailman-<INSTALLED_VERSION>
<INSTALLED_VERSION>with the actual version of Mailman package installed on your server.
Try to switch mail provider to Postfix and check if the behavior changes.
Try uninstalling Mailman (Warning: this will lead to loss of all configuration), install it back and configure it anew.
In case all those action do not help, make sure your Plesk Panel installation is up-to-date. Update it if necessary.