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Hi, I made a yum update on 18th of july:

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After that sshd is crashing on startup, Any help?

Florian Weimer
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Giovanni De Stefanis
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1 Answers1

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Please post log excerpts as text. I see this:

error: Bind to port 22 on :: failed: Address already in use.

This means some other process is already listening on port 22/TCP. It could be an existing instance of sshd that systemd somehow failed to track, or a different kind of SSH server (dropbear?). You can use lsof -n or ss -p -l -t to find that process, and them run systemctl status PID with the PID value to find out where it's coming from.

Florian Weimer
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  • Can you add the output from the `ss -p -l -t` command to your post? – Florian Weimer Jul 22 '17 at 13:15
  • Florian Weimer.. i must in this way (i uploaded image in new answer).. sorry can't copy/paste from console – Giovanni De Stefanis Jul 22 '17 at 13:38
  • I tried to access few second after reboot and it lets me in. And: [root@goautodial-7 ~]# systemctl status sshd sshd.service - OpenSSH server daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled) Active: activating (start) since Sat 2017-07-22 15:45:53 CEST; 17s ago [...] Jul 22 15:46:04 goautodial-7 sshd[1125]: Accepted password for root from 178.148.10.215 port 50034 ssh2 – Giovanni De Stefanis Jul 22 '17 at 13:47