Hi, I recently switched to Debian for AMD64 (sid) distribution on my little home server. Since there isn't an AICCU client available, I tried the "Oliver Walters Shell Heartbeat Client" without any result. My system (for testing...) is not firewalled. NTP is synched. This is how I've configured the script: localv6="2001:1418:100:70::2" password="blablabla" remotev4="213.254.12.34" remotev6="2001:1418:100:70::1" If I use AICCU client on a Windows machine connected to my LAN, the heartbeat gets up properly on the Debian64 server (which has already interfaces properly configured) Thanks for help