On Sat, 15 Jul 2023, Greg Wooledge wrote:
On Sat, Jul 15, 2023 at 11:59:33AM +0200, Roger Price wrote:
rprice@kananga:~$ ssh -v rprice@maria
ssh: connect to host maria port 22: Connection timed out
A timeout is an ENTIRELY different symptom, and when combined with
"but I can ping the remote", it means a firewall is involved. Every
time.
I tried to clear out the existing firewall on a Debian 9 machine with the
commands
iptables -F
iptables -X
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -L -n --line-numbers reports
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ufw-before-logging-input all -- 0.0.0.0/0 0.0.0.0/0
2 ufw-before-input all -- 0.0.0.0/0 0.0.0.0/0
3 ufw-after-input all -- 0.0.0.0/0 0.0.0.0/0
4 ufw-after-logging-input all -- 0.0.0.0/0 0.0.0.0/0
5 ufw-reject-input all -- 0.0.0.0/0 0.0.0.0/0
6 ufw-track-input all -- 0.0.0.0/0 0.0.0.0/0
... and so on
I then recycled the Debian 9 machine, power off, power on, for a clean restart,
After the restart, I tried to ssh from Debian 11 to that Debian 9 machine
rprice@titan ~ ssh -v rprice@kananga
ssh: connect to host kananga port 22: Connection timed out
So it's something else? Roger
