I have been trying to install Urchin on my Cpanel server with out much success. The following error message keeps coming up:

Choose a port number for the webserver [Default: 9999]
-> 9999

install.sh: line 782: 14037 Segmentation fault (core dumped) "$INSPECTOR" -P $portin
The specified port is not available.

The port was opened in my firewall (see below):

# Common ingress (inbound) TCP ports
IG_TCP_CPORTS=" 21,22,25,53,80,110,143,443,465,993,995,2082,2083,2
086,2087,2095,2096,7786,9999"

Do I need to reboot the server for the port to open up?

At least you will need to restart the firewall.

Tried and no luck. Any other suggestions?

I'm getting the same error on every port I try. Did you ever get it to work?

I see you open the port for inbound traffic.... have you tried to open the port for outbound traffic too ?