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https://issues.apache.org/jira/browse/VCL-992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Kurth resolved VCL-992.
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Resolution: Duplicate
Assignee: Andy Kurth
> ext_sshd service occasionally fails to restart under systemd
> ------------------------------------------------------------
>
> Key: VCL-992
> URL: https://issues.apache.org/jira/browse/VCL-992
> Project: VCL
> Issue Type: Bug
> Reporter: Andy Kurth
> Assignee: Andy Kurth
> Fix For: 2.5
>
>
> I have seen the ext_sshd service fail to start/restart when controlled by
> systemd on Ubuntu 16. When this occurs, the status of the service shows:
> {noformat}
> root@<hostname>:/etc/ssh# service ext_sshd status
> * ext_sshd.service - OpenBSD Secure Shell server
> Loaded: loaded (/lib/systemd/system/ext_sshd.service; enabled; vendor
> preset: enabled)
> Active: inactive (dead) since Wed 2016-09-21 16:37:56 EDT; 17h ago
> Process: 5515 ExecStart=/usr/sbin/sshd -D -f /etc/ssh/external_sshd_config
> (code=exited, status=0/SUCCESS)
> Main PID: 5515 (code=exited, status=0/SUCCESS)
> Sep 21 16:37:56 <hostname> systemd[1]: Starting OpenBSD Secure Shell server...
> Sep 21 16:37:56 <hostname> sshd[5515]: Server listening on <IP address> port
> 22.
> Sep 21 16:37:56 <hostname> systemd[1]: Started OpenBSD Secure Shell server.
> Sep 21 16:37:56 <hostname> systemd[1]: Stopping OpenBSD Secure Shell server...
> Sep 21 16:37:56 <hostname> systemd[1]: Stopped OpenBSD Secure Shell server.
> Sep 21 16:37:56 <hostname> systemd[1]: ext_sshd.service: Start request
> repeated too quickly.
> Sep 21 16:37:56 <hostname> systemd[1]: Failed to start OpenBSD Secure Shell
> server.
> Sep 21 16:37:56 <hostname> systemd[1]: Stopped OpenBSD Secure Shell server.
> Sep 21 16:37:56 <hostname> systemd[1]: ext_sshd.service: Start request
> repeated too quickly.
> Sep 21 16:37:56 <hostname> systemd[1]: Failed to start OpenBSD Secure Shell
> server.
> {noformat}
> Users cannot connect:
> {noformat}ssh: connect to host <IP address> port 22: Connection
> refused{noformat}
> Adding these lines under the *\[Service\]* section in
> */lib/systemd/system/ext_sshd.service* may prevent this from occurring:
> {noformat}
> Restart=on-failure
> RestartSec=3s
> {noformat}
> I don't know for sure if this alone will fix the problem. There may be
> additional options that could be added to the file. (_man systemd.service_)
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