Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : some questions about the server security and mangement .

[the_gladiator]

Hello .

please i have some questions :-

1 - how can i stoped the php shell and perl shell ??

2 - how can i know if some user send a spam ?

3 - how can prepare "my.cnf " and " httpd.conf " for a vps and dedicated sever ?

4 - what about " mod_suphp " if i have hosting company do you recommend use " mode_suphp " or no ? if yes .. please tell me why and how can i install it ?

thank you a lot .

have a good day

[Avactis]

> 1 - how can i stopped the php shell and perl shell ??

you should find and remove the shell, manually or using some anti-virus software, e.g. watchdog in plesk or server anti virus

also you can forbid all system commands in the php, e.g. exec, system and so on. most shells use them for files/folder manipulation.

> 4 - what about " mod_suphp " if i have hosting company do you
> recommend use " mode_suphp " or no ? if yes .. please tell me
> why and how can i install it ?

it is good thing. it executes thу php script under the needed user, it is good because if this php script will be a hackers shell, the hacker will be not able to hack all accounts on the server, he will be able to work only under some specific user and will be not able to receive access to the other users on the same server.

as for mod_suphp installation, "my.cnf " and " httpd.conf" please ask your hosting administrator to check it.

it is not possible to answer all these questions on this forum unfortunately. without the server access and without the server configuration analysis.

[the_gladiator]

Hi avactis , thank you for your reply .

as for mod_suphp installation, "my.cnf " and " httpd.conf" please ask your hosting administrator to check it.

just can you tell me how can i do it by my self ?

i want to learn .

note *

i use cpanel and whm in my server , Linux - CentOS .

thank you

[Avactis]

if you want to modify the mysql configuration for the dedicated server (optimize it), I can recommend to check the default configuration using the mysql tuner primer script: http://forge.mysql.com/projects/project.php?id=44

it will help to optimize the cache size and other internal mysql variables.

as for apache optimization, try to disable all unnecessary modules n apache, or use NginX web server, instead of heavy apache.

[Avactis]

Originally Posted by the_gladiator

i use cpanel and whm in my server , Linux - CentOS .

I like CentOS, it is very stable system. Good choice!