Close port 2096

[bwor]

How I can disallow vistors to access webmail by closing port 2096 ?

[garrettp]

If you want to block access to webmail for all users you can just add a firewall rule (note webmail uses two ports: 2095 and 2096 [SSL]):

iptables -A INPUT -p tcp -m tcp --dport 2095:2096 -j DROP

[bwor]

If you want to block access to webmail for all users you can just add a firewall rule (note webmail uses two ports: 2095 and 2096 [SSL]):

iptables -A INPUT -p tcp -m tcp --dport 2095:2096 -j DROP

This is shell command or what ?

[garrettp]

Correct, that is a shell command.

[bwor]

Correct, that is a shell command.

If I have a shared account only with not allowed shell command, I can use programming for example by php or perl (cgi) or there some option in cpanel to block this port ?

[garrettp]

If you have only a shared account you will not have access to do something like blocking a port as that is considered a admin-level task. YOu'll have to ask your server administrator to do this for you.