Had SER running on Fedora Core 3. Moved unit to a different LAN. "SIP_DOMAIN" EXPORT environmental variable refuses to change although changed in /etc/profile, ser.cfg, /etc/bashrc, MySQL table, etc. Searched every file on the drive using grep to locate the IP address with no luck. Every time I reboot, the SIP_DOMAIN variable reflects old IP address. I pulled most of my hair out and enough curse words to make a sailor blush.