ubuntu : starting sshd at boot

Source

  • ssh server installed but not starting at boot (I certainly messed up something):

    $ ls -l /etc/init.d/*ssh*
-rwxr-xr-x 1 root root 3704 2010-09-14 19:20 /etc/init.d/ssh
$ ls -l /etc/rc2.d/*ssh*
ls: cannot access /etc/rc2.d/*ssh*: No such file or directory
$ ls -l /etc/rc1.d/*ssh*

  • a solution is to use update-rc.d:

    usage: update-rc.d [-n] [-f] <basename> remove
       update-rc.d [-n] <basename> defaults [NN | SS KK]
       update-rc.d [-n] <basename> start|stop NN runlvl [runlvl] [...] .
       update-rc.d [-n] <basename> disable|enable [S|2|3|4|5]
                -n: not really
                -f: force

The disable|enable API is not stable and might change in the future.

  • by issuing :

    $ sudo update-rc.d ssh defaults
update-rc.d: warning: ssh stop runlevel arguments (0 1 6) do not match LSB Default-Stop values (none)
 Adding system startup for /etc/init.d/ssh ...
   /etc/rc0.d/K20ssh -> ../init.d/ssh
   /etc/rc1.d/K20ssh -> ../init.d/ssh
   /etc/rc6.d/K20ssh -> ../init.d/ssh
   /etc/rc2.d/S20ssh -> ../init.d/ssh
   /etc/rc3.d/S20ssh -> ../init.d/ssh
   /etc/rc4.d/S20ssh -> ../init.d/ssh
   /etc/rc5.d/S20ssh -> ../init.d/ssh

  • should work now

    $ ls -l /etc/rc1.d/*ssh*
lrwxrwxrwx 1 root root 13 2011-01-18 21:33 /etc/rc1.d/K20ssh -> ../init.d/ssh