On 05/30/2012 12:43 PM, Dmitry Banschikov wrote: > On 05/30/2012 10:52 AM, Ram wrote: >> I am trying to setup a remote cyrus-replica to a different geographical >> location for business continuity. >> >> In case the main server goes down the users will get switched to the >> remote server by making a DNS change. >> The only issue is DNS replication would take a long time so the switch >> is not instantaneous. >> How would one make the switch instantaneous ? Moving the IP is not >> possible because the Remote server is on a different network >> >> > > You can set TTL of RR to very small value (say 60 seconds). In this > case, DNS change will be propagated fast. > > But I have seen some DNS clients , especially on windows , do not honor TTL. For a 10 minute TTL , even after 4 hours the windows server keeps resolving to the old server ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
