This is an alternative method for keeping the AOLserver process running. The recommended method is to run AOLserver supervised.
This step should be completed as root. This can break every service on your machine, so proceed with caution.
There are 2 general steps to getting this working.
Install a script called
restart-aolserver. This script doesn't actually restart AOLserver - it just kills it.
Ask the OS to restart our service whenever it's not running. We do this by adding a line to
restart-aolserverkills our service. The OS notices that our service is not running, so it automatically restarts it. Thus, calling
restart-aolservereffectively restarts our service.
Copy this file into
This script needs to be SUID-root, which means that the script will run as root. This is necessary to ensure that the AOLserver processes are killed regardless of who owns them. However the script should be executable by the
webgroup to ensure that the users updating the web page can use the script, but that general system users cannot run the script. You also need to have Perl installed and also a symbolic link to it in
[joeuser ~]$ su - Password: *********** [root ~]# cp /var/tmp/restart-aolserver.txt /usr/local/bin/restart-aolserver [root ~]# chown root.web /usr/local/bin/restart-aolserver [root ~]# chmod 4750 /usr/local/bin/restart-aolserver [root ~]# ln -s /usr/bin/perl /usr/local/bin/perl [root ~]# exit
restart-aolserverscript. We'll first kill all running servers to clean the slate. Then, we'll start one server and use
restart-aolserverto kill it. If it works, then there should be no more servers running. You should see the following lines.
[joeuser ~]$ killall nsd nsd: no process killed [joeuser ~]$ /usr/local/aolserver/bin/nsd-postgres -t ~/var/lib/aolserver/birdnotes/nsd.tcl [joeuser ~]$ restart-aolserver birdnotes Killing 23727 [joeuser ~]$ killall nsd nsd: no process killed
The number 23727 indicates the process id(s) (PIDs) of the processes being killed. It is important that no processes are killed by the second call to
killall. If there are processes being killed, it means that the script is not working.
Assuming that the
restart-aolserverscript worked, login as root and open
[joeuser ~]$ su - Password: ************ [root ~]# emacs -nw /etc/inittab
Copy this line into the bottom of the file as a template, making sure that the first field
nss1:345:respawn:/usr/local/aolserver/bin/nsd-postgres -i -u nobody -g web -t /home/joeuser/var/lib/aolserver/birdnotes/nsd.tcl
Important: Make sure there is a newline at the end of the file. If there is not a newline at the end of the file, the system may suffer catastrophic failures.
Still as root, enter the following command to re-initialize
[root ~]# killall nsd nsd: no process killed [root ~]# /sbin/init q
See if it worked by running the
[root ~]# restart-aolserver birdnotes Killing 23750
If processes were killed, congratulations, your server is now automated for startup and shutdown.