(This is a feature request related to case 480573)
On Centos 6, we are running Serv-U and Serv-U-Gateway as a non-root user (_servu). This appears to be working fine, but we would prefer that Serv-U explicitly support this configuration.
In order to bind privileged ports (<1024), the Serv-U process must either run at least briefly as root, or have appropriate cap_net_bind_service capabilities set.
We are using a modified init script that uses the 'setcap' command to allow the process to bind privileged ports. Our modified 'start' section of the init script is:
if [ $? -eq 1 ];
echo "Serv-U is already running"
echo "Serv-U is starting..."
/bin/chmod 740 "$SERVERPATH/$SERVERNAME"
/usr/sbin/setcap 'cap_net_bind_service=+ep' "$SERVERPATH/$SERVERNAME"
/bin/su -l -s /bin/sh _servu -c "(cd \"$SERVERPATH\" && ./$SERVERNAME -startservice & 1>/dev/null 2>&1)"
I have attached our full init scripts.