Hi ! My current ISPConfig server runs on DMZ with IP 192.168.1.xx, and all services are DNAT-ed from external IP (ISP #1). Now I'm going to add 2nd ISP link with 2nd external IP. Both external IPs are listed in DNS records for web / mail / ftp. Do I need to add 2nd IP in System -> Server IP Addresses, or DNS records are enough ? Thanks.
Not quite sure if your router can point both external IP addresses to the same internal IP, if that's possible, then you don't need a second internal IP. If that's not possible, then add a second internal IP address in the network card config file of your ISPConfig server and afterwards, add it in ISPConfig under System > server IP.
