Hello.

I am using IPTABLES to secure my system. I am having a problem blocking the Samba process, can someone please give me a hand?

I am able to block all incoming SSH requests to my linux server by using this command... iptables -A INPUT -p tcp --dport 22 -j REJECT This works fine.

However I am trying to do the same with the samba service. It is running samba, but I want to try and block it from everyone (just a test). I am doing this...

iptables -A INPUT -p tcp --dport 139 -j REJECT

However it still allows me to connect to the samba service and view the shares.

Can someone please tell me what I am doing wrong here?

Thanks alot

Best Regards,
Craig

Samba ports are
UDP 137
UDP 138
TCP 139
TCP 445

BTW IMO it would be better to use a policy of dropping everything and then add rules for what you want to accept.