Nagios monitoring

I've been playing around with nagios and like to set it up for monitoring the serviio server. So far I haven't found any pre-made scripts or any helpful hints to complete the check.
Since there is no script available the easiest start is to try with the nagios default check_http script. The problem is with default options check_http -H serviio-server -p 8895 returns a warning since it returns a 404.
There are options to pass strings and check responses but these are out of my knowledge.
Does anyone have any experience monitoring their serviio server with nagios and/or can anyone help me complete the check_http command to complete the check?

Edit:
The best highly unelegant but working command definition so far I could come up with:
command_line $USER1$/check_http -H $HOSTADDRESS$ -p 8895 -e HTTP/1.1\ 404\ Not\ Found

[grolschie]

What about monitoring the mediabrowser port: 23424? Or using NRPE (if running Serviio on a Linux box) or NSClient++ (if running Serviio on a Windows box) to monitor the Serviio process? If going with NSClient, you might wish to change the permissions on it's install folder or configuration file to protect the password from being visable (if I recall correctly).

First I thought process monitoring was pointless. It's a remote server, if it isn't reachable it doesn't really matter if it runs fine. But since it is a quick fix:

nrpe.cfg on the serviio host

  Code:

command[check_pc5dczc_proc]=/usr/lib/nagios/plugins/check_procs -w 2:3 -c 1:5 -a serviio.sh


Since serviio is usually running from a screen I watch for 1 or 2 processes.
EDIT:changed the warn threshold to 2:3 processes. Somehow via NRPE check_procs adds another matched process


serviio-host.cfg on the nagios host

  Code:

define service{
use generic-service,srv-pnp
host_name serviio-host
service_description Serviio process
check_command check_nrpe!check_pc5dczc_proc
}


Next step is to see if I can parse the difference between a valid response and an error from 23424.
Any ideas on what commands to send to the server to see if it is sane?