Considering I’m the one who wrote this code, it would be mighty curious if I didn’t know:)
The var in question is WWW_HOST.
For a full listing of all the needed vars see:
If you want to know which var is used for any of the prompts, you can always look inside the shell script, in this case:
echo -e "${CYAN}Kaltura API host and port (without the protocol) [${YELLOW}`hostname`:80${CYAN}]:${NORMAL} "
read -e WWW_HOST
if [ -z "$WWW_HOST" ];then
WWW_HOST="`hostname`:80"
fi