When adding a site you can choose * or the IP address. If you choose by mistake * the nginx will restart and listen on all interfaces. I want to disable this. This is a problem for me bacuse I have 2 IPs and to separate ISPConfig installations on the same server. First is Apache and Second is NGINX. Every now and than I make a mistake and forget assign IP to website and NginX goes down with error bind() to 0.0.0.0:80 failed (98: Address already in use) How can I remove * for IP in ISPConfig?