fastcgi-mono-server4 debugging on nginx, is it possible?

I've just ran into the same problem myself and was able to fix it :)

The MONO_OPTIONS environment variable can hold additional parameters that are passed to the mono executable. So if you do:

export MONO_OPTIONS="--debug"fastcgi-mono-server-4 /applications="/:/srv/www/htdocs/mywebapp" /socket=tcp:127.0.0.1:9000

You should get debug information (linenumber and files) upon error, provided of course you also deployed the *.mdb files which hold the debug information.

I personally use a modified verison of the init script found here which is as follows:

#!/bin/sh### BEGIN INIT INFO# Provides:          monoserve.sh# Required-Start:    $local_fs $syslog $remote_fs# Required-Stop:     $local_fs $syslog $remote_fs# Default-Start:     2 3 4 5# Default-Stop:      0 1 6# Short-Description: Start fastcgi mono server with hosts### END INIT INFOsource /etc/mono-addon-envNAME=monoserverDESC=monoserverMONO_OPTIONS="--debug"MONOSERVER=$(which fastcgi-mono-server4)MONOSERVER_PID=$(ps auxf | grep fastcgi-mono-server4.exe | grep -v grep | awk '{print $2}')WEBAPPS="/:/srv/www/htdocs/mywebapp/"case "$1" in        start)                if [ -z "${MONOSERVER_PID}" ]; then                        echo "starting mono server"                        ${MONOSERVER} /applications=${WEBAPPS} /socket=tcp:127.0.0.1:9000 &                        echo "mono server started"                else                        echo ${WEBAPPS}                        echo "mono server is running"                fi        ;;        stop)                if [ -n "${MONOSERVER_PID}" ]; then                        kill ${MONOSERVER_PID}                        echo "mono server stopped"                else                        echo "mono server is not running"                fi        ;;esacexit 0

But PAY ATTENTION: In case you use that init script to start up the fastcgi daemon, DO NOT USE any init tools like "service monoserve start" (RHEL/CentOS) or "rcMonoserve start". For me this will not work, I suspect the init system will spawn another process with different environment variables. To be safe, only call the script directly, i.e. /etc/init.d/monoserve startand put in in /etc/rc.local or such.