Firewall blocking some strange communications from source-port 22 to over-seas ip addresses. Should I be concerned?
I'm responsible for a server that serves a single service (ssh) over the internet via port-forwarding through a firewall. The ssh service login is limited to encryption-key only (no passwords ...
Turning on UFW stops my e-mail client functioning (both imap and smtp) even though they are allowed?
I am using ubuntu 10.04 on a VPS. Without enabling UFW everythign works fine - imap using port 143. And sends emails using smtp port 587. However, when I turn on UFW a lot of problems are ...
I have a small Ubuntu 10.10 server and i recently noticed a weird behavior (not sure if it was happening before). If I have ufw enabled (with default deny all in, allow all out, allow all http, allow ...