Hello again all,
I have a bit of a head scratcher.
Background:
I've setup a linux server, to feed out the odd occasional file and large transfer, to some of our customers/partners. At the moment, this was going to constitute just using OpenSSH running on Ubuntu, with no terminal/shell access for them. FTP Proxy is NOT used/on.
Issue:
Internal traffic comes in fine (IP), however external traffic (FQDN or IP) makes it as far as the firewall NAT rule and then "vanishes".
Setup:
Base Linux Server running OpenSSH with UFW enabled <==> Sophos UTM 9.707 (SNAT and DNAT rules enabled, with External IP tied to an interface) <==> Internal / External clients with Putty, WinSCP, FileZilla etc.
Where else can I check on the UTM to see what is blocking/preventing traffic from coming through?
Snaps:
Snip of FW log
Can ping Public IP from server:
UFW rules:
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