php, mod_security, ea4 and litespeed

[dzamanakos]

Hi, i've two questions, and my setup is centos, cloudlinux, litespeed

1. I've read on litespeed optimization guide that i can use /dev/shm/phpXX as session.save_path folders for my php versions as a performance tweak. I could add to cagefs these folders through cagefs.mp in order to be accessible from the user.
I would like to know if, after a restart, cpanel creates /dev/shm/phpXX with the proper permissions if the folder is not found. I also thought that in busy servers, session files in memory could lower the disk overhead, if files (such as session that are not mandatory to exist after a reboot) are written in the ram.
Has anyone tried this, will that work?

2. i'm using cpanel's mod_security with the rules "COMODO ModSecurity LiteSpeed Rule Set" added as vendor.
When i disable/enable a rule, i get a message that i should deploy and restart apache and have to click it in order to apply the changes and get a reply that apache was notified to do a graceful restart. Does that restarts litespeed also, or should i restart afterwards the litespeed service through litespeed plugin?
Are there any symlinks that restarts litespeed if i click "restart services-> http server (apache)" or i should restart litespeed from that link?

best regards,

 

[cPanelMichael]

Hello @dzamanakos,

1. I've read on litespeed optimization guide that i can use /dev/shm/phpXX as session.save_path folders for my php versions as a performance tweak. I could add to cagefs these folders through cagefs.mp in order to be accessible from the user. I would like to know if, after a restart, cpanel creates /dev/shm/phpXX with the proper permissions if the folder is not found. I also thought that in busy servers, session files in memory could lower the disk overhead, if files (such as session that are not mandatory to exist after a reboot) are written in the ram.
Has anyone tried this, will that work?

I'm happy to perform these actions on a test server to verify what happens. Can you share the step-by-step instructions for the specific actions you'd like us to test so I can replicate them on a test server?

2. i'm using cpanel's mod_security with the rules "COMODO ModSecurity LiteSpeed Rule Set" added as vendor.
When i disable/enable a rule, i get a message that i should deploy and restart apache and have to click it in order to apply the changes and get a reply that apache was notified to do a graceful restart. Does that restarts litespeed also, or should i restart afterwards the litespeed service through litespeed plugin?
Are there any symlinks that restarts litespeed if i click "restart services-> http server (apache)" or i should restart litespeed from that link?

Using WHM >> Restart Services >> HTTP Server (Apache) or /scripts/restartsrv_httpd (via the command line) will automatically perform the necessary LiteSpeed service restart.

Thank you.

 

[dzamanakos]

Hi, thank you for your reply.

My scenario is :

I want to store php session files to /dev/shm in order to have less overhead in my disks.

I can browse to WHM->multiphp ini editor -> phpXX and set session.save_path to /dev/shm/php/phpXX for all my php versions.
After save, will cpanel create these directories or should i create them myself?

When i restart my server /dev/shm will be erased, after boot will cpanel create these dirs before web server starts, or i'm going to get error messages because the folders will not exist?

best regards,

 

[cPanelMichael]

I can browse to WHM->multiphp ini editor -> phpXX and set session.save_path to /dev/shm/php/phpXX for all my php versions.
After save, will cpanel create these directories or should i create them myself?

You will need to create those directories before updating the session.save_path value in WHM >> MultiPHP INI Editor >> Basic Mode. The individual directories (e.g. /dev/shm/php/php72) should be owned by root and set to 1733 permissions.

When i restart my server /dev/shm will be erased, after boot will cpanel create these dirs before web server starts, or i'm going to get error messages because the folders will not exist?

cPanel & WHM will not automatically create those directories at boot time. You'll need to manually create them any time you boot the system or setup a script to automatically create them when the system boots. You may also want to consider posting directly to the LiteSpeed Forums to see if any other LiteSpeed administrators have implemented a similar setup.

Thank you.

 

[dzamanakos]

Hi, thank you for your reply.
I'll check with other forums too.