Re: Dual Homed IP's
On Wed, 12 May 2004, Adam Seniuk wrote: > I have 2 mail servers, I would like to give those servers 2 ips so if one card > dies the other will pick it up. > > But I am having a problem since most of the configurations that i have read > up on have 2 different ip blocks. I have one large block that i can pick > from. > > Example: > em0 192.168.1.200 > em1 192.168.1.201 > Hi! For automated failover, there are kinda tricky solutions available. for manual failover, simply bind the other address as an alias on the same physical interface on one card, or use a /32 subnet mask on the second NIC. BTW: in case of mailers, you could also solve the problem with different mx records: >host yahoo.de yahoo.de has address 217.12.3.11 yahoo.de mail is handled (pri=5) by mx4.mail.yahoo.com yahoo.de mail is handled (pri=1) by mx1.mail.yahoo.com yahoo.de mail is handled (pri=1) by mx2.mail.yahoo.com So you could simply specify some fallback mailer that picks it up, no fiddling with different IP... HTH Olaf -- Olaf Hoyer[EMAIL PROTECTED] Fuerchterliche Erlebniss geben zu raten, ob der, welcher sie erlebt, nicht etwas Fuerchterliches ist. (Nietzsche, Jenseits von Gut und Boese) ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Dual Homed IP's
Adam Seniuk wrote: I have 2 mail servers, I would like to give those servers 2 ips so if one card dies the other will pick it up. But I am having a problem since most of the configurations that i have read up on have 2 different ip blocks. I have one large block that i can pick from. If you want true redundancy, you really ought to set up two seperate physical networks using different IP ranges, and multihome your system that way. That being said, take a look at "man ng_one2many"... -- -Chuck ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Dual Homed IP's
I have 2 mail servers, I would like to give those servers 2 ips so if one card dies the other will pick it up. But I am having a problem since most of the configurations that i have read up on have 2 different ip blocks. I have one large block that i can pick from. Example: em0 192.168.1.200 em1 192.168.1.201 but when i try to do this i have no connection on the other network card. If anyone has a suggestion I would be greatful. Thanks. __ Powered By Techweavers Webmail http://webmail.techweavers.net ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"