I am on Ubuntu 16.04 LTS.
I had ssh server running and it worked properly for many months, until one time when something cause it to fail.
Now, I can't do regular Ubuntu updates from Canonical. I can't run apt-get
updates. E.g.
$ sudo apt-get upgrade python3
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3 is already the newest version (3.5.1-3).
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
containerd libllvm5.0 libpaps0 paps python3-rlp runc swarm
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up openssh-server (1:7.2p2-4ubuntu2.6) ...
insserv: warning: script 'S02ssh-start.sh' missing LSB tags and overrides
insserv: warning: script 'ssh-start.sh' missing LSB tags and overrides
Job for ssh.service failed because the control process exited with error code. See "systemctl status ssh.service" and "journalctl -xe" for details.
invoke-rc.d: initscript ssh, action "restart" failed.
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2019-01-28 14:10:23 EST; 6ms ago
Process: 79047 ExecStart=/usr/sbin/sshd -D $SSHD_OPTS (code=exited, status=255)
Process: 79038 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
Main PID: 79047 (code=exited, status=255)
Jan 28 14:10:23 joeslinux systemd[1]: Starting OpenBSD Secure Shell server...
Jan 28 14:10:23 joeslinux systemd[1]: ssh.service: Main process exited, code=exited, status=255/n/a
Jan 28 14:10:23 joeslinux systemd[1]: Failed to start OpenBSD Secure Shell server.
Jan 28 14:10:23 joeslinux systemd[1]: ssh.service: Unit entered failed state.
Jan 28 14:10:23 joeslinux systemd[1]: ssh.service: Failed with result 'exit-code'.
dpkg: error processing package openssh-server (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
openssh-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
When I check the status of my ssh server,
sudo service ssh status
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2019-01-28 14:10:23 EST; 2min 37s ago
Process: 79047 ExecStart=/usr/sbin/sshd -D $SSHD_OPTS (code=exited, status=255)
Process: 79038 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
Main PID: 79047 (code=exited, status=255)
Jan 28 14:10:23 joeslinux systemd[1]: Starting OpenBSD Secure Shell server...
Jan 28 14:10:23 joeslinux systemd[1]: ssh.service: Main process exited, code=exited, status=255/n/a
Jan 28 14:10:23 joeslinux systemd[1]: Failed to start OpenBSD Secure Shell server.
Jan 28 14:10:23 joeslinux systemd[1]: ssh.service: Unit entered failed state.
Jan 28 14:10:23 joeslinux systemd[1]: ssh.service: Failed with result 'exit-code'.
Thank you for help.
-- edit 1/28/19 --
I don't know if this helps, but I have in /etc/init.d
the following 2 scripts...
ssh.sh
which appears to be the Ubuntu provided shell script
and
ssh-start.sh
which contains
sudo service ssh start
in addition to all that, I also have /etc/systemd/system/sshd.service
, which is a link to /lib/systemd/system/ssh.service
which contains:
[Unit]
Description=OpenBSD Secure Shell server
After=network.target auditd.service
ConditionPathExists=!/etc/ssh/sshd_not_to_be_run
[Service]
EnvironmentFile=-/etc/default/ssh
ExecStartPre=/usr/sbin/sshd -t
ExecStart=/usr/sbin/sshd -D $SSHD_OPTS
ExecReload=/usr/sbin/sshd -t
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
RestartPreventExitStatus=255
Type=notify
[Install]
WantedBy=multi-user.target
Alias=sshd.service
------------ edit February 18, 2019 -----------------------
Still having issues. They are now causing things like apt install to fail.
Thanks, Andrew Dunn, but I researched that answer and solution didn't work work me.
Here is output of journalctl -xe
joe@joeslinux:~$ journalctl -xe
Feb 18 21:42:34 joeslinux start-mining-monero-minergate-cpu.sh[1640]: [2019-02-18 21:42:34] Diff: 8782 CPU/GPU: 953.8 H/s
Feb 18 21:42:35 joeslinux start-mining-monero-minergate-cpu.sh[1640]: [2019-02-18 21:42:35] Diff: 8782 CPU/GPU: 964.0 H/s
Feb 18 21:42:36 joeslinux sudo[5685]: joe : TTY=pts/6 ; PWD=/home/joe ; USER=root ; COMMAND=/usr/sbin/service ssh restart
Feb 18 21:42:36 joeslinux sudo[5685]: pam_unix(sudo:session): session opened for user root by (uid=0)
Feb 18 21:42:36 joeslinux systemd[1]: Stopped OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit ssh.service has finished shutting down.
Feb 18 21:42:36 joeslinux systemd[1]: Starting OpenBSD Secure Shell server...
-- Subject: Unit ssh.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit ssh.service has begun starting up.
Feb 18 21:42:36 joeslinux sshd[5703]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use.
Feb 18 21:42:36 joeslinux sshd[5703]: error: Bind to port 22 on :: failed: Address already in use.
Feb 18 21:42:36 joeslinux sshd[5703]: fatal: Cannot bind any address.
Feb 18 21:42:36 joeslinux systemd[1]: ssh.service: Main process exited, code=exited, status=255/n/a
Feb 18 21:42:36 joeslinux systemd[1]: Failed to start OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit ssh.service has failed.
--
-- The result is failed.
Feb 18 21:42:36 joeslinux systemd[1]: ssh.service: Unit entered failed state.
Feb 18 21:42:36 joeslinux systemd[1]: ssh.service: Failed with result 'exit-code'.
Feb 18 21:42:36 joeslinux sudo[5685]: pam_unix(sudo:session): session closed for user root
Note the: error: Bind to port 22... lines.