Server Base: No SSH Connection [Solved]

[vaettchen]

I just have set up a new server that is supposed to replace my aged Fit-PC, but I'm suffering from lack of connectivity:

I can ssh out of the new machine (192.168.1.50), but I cannot connect inwards. So if I try from some other PC

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ssh 192.168.1.50

I get a time-out

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ssh: connect to host 192.138.1.50 port 22: Connection timed out

I have installed cups on the new server, and also here I cannot connect:

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https://192.168.1.50:631

simply remains "connecting".

iptables is not running. What could it be?
ping works, by the way.

Thanks,
Rainer

PS: sshd is running on all machines, and ssh-keygen has been done

[joost]

turn off the ufw firewall?
Is sshd running on the server?

[vaettchen]

Thanks a lot - I thought it was the firewall but I didn't know about ufw. Switched it off, and ssh is up and running in both directions now!

The remaining problem is that still i cannot access the cups server (https://192.168.1.50:631). Before, I got a timeout; now, with ufw switched off, firefox tells me right away that it "can't establish a connection to the server at 192.168.1.50:631".

What am I still doing wrong? ===> Had to edit cupsd.conf and add "Listen *:631 -- this is new I believe, used to be default!

Thanks once more,
Rainer

[frankleonard]

You can always make sure your sshserver is available on the internet by using http://webssh.uni.me or similar websites that offer ssh.

[lxnay]

You need to explicitly allow CUPS to accept external (non local, 127.0.0.1) connections.

[BoeroBoy]

Thank you!
I was about to post this same question. Not sure when entropy grabbed ufw on me...