i've had reports of httpd and httpd-admin crashing when attempting to use the userpanel externally, i believe the problem is unrelated to the userpanel
could this be confirmend by testing on a TEST server
go to server-manager >remote access add a remote ip with a netmask of 255.255.255.255 as suggested by mitel and save ....
fix this by editing /home/e-smith/configuration and changing to 255.255.255.0
expand templates and restart httpd & httpd-admin
regards
stephen noble
dungog.net/sme