Question Which firewall settings should I modify to "Deny all"?

[jackoackely]

Hi!

Down below you can check my firewall settings. I have already changed some of them. Which settings should I set to "Deny all" for security reason and which won't break Plesk? Thanks for the help.

 

[jackoackely]

Bump!

 

[Bitpalast]

If you do not use specific modules, you can simply block all traffic for them. Most users for example do not user:

Customer & Business Manager
Single Sign On
PostgreSQL server
Samba
IPv6 neighbor discovery

But as always in such cases, it depends on what you are really using.