On Mon, Jul 17, 2023 at 1:15 PM Paul Neuwirth <mail@paul-neuwirth.nl> wrote:
On Montag 2023-07-17 11:42, Andrei Borzenkov wrote:
Date: Mon, 17 Jul 2023 11:42:11 From: Andrei Borzenkov <arvidjaar@gmail.com> To: users@lists.opensuse.org Subject: Re: ssh connection failes (times out)
On Mon, Jul 17, 2023 at 12:18 PM Paul Neuwirth <mail@paul-neuwirth.nl> wrote:
nothing to see for me. (where does the "noprefixroute" come from?)
It comes from NetworkManager
Well, I would simply capture packets on this host when ssh connection is attempted. Then you at least know whether any request comes through or not.
seems so, tcpdump shows repeatingly those lines on trying to connect: 12:06:51.525602 IP stb1.swabian.net.43562 > omega.swabian.net.ssh: Flags [S], seq 3512370883, win 29200, options [mss 1460,sackOK,TS val 8907069 ecr 0,nop,wscale 6], length 0
This is an incoming TCP connection request. Do you also see any reply on this interface?
12:07:31.105170 IP alpha.swabian.net.39586 > omega.swabian.net.ssh: Flags [S], seq 2839271321, win 29200, options [mss 1460,sackOK,TS val 861540940 ecr 0,nop,wscale 7], length 0
sshd is definitively listening... # netstat -lntp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd tcp 0 0 127.0.0.1:7634 0.0.0.0:* LISTEN 1935/hddtemp tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1003/sshd: /usr/sbi tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2377/master