Depends on your needs and what port conflict. You cannot use the same IP:Port combination in two running programs or two VHost /HostPorts at the same time. If you have two IPs you can use one in Wowza and another in the other program, or in another Wowza VHost /HostPorts. If you don't have two IPs you can use alternate ports, like 8080 in your web server for example. etc.