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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!spool.mu.edu!newspump.sol.net!howland.erols.net!news.sprintlink.net!news-peer.sprintlink.net!arclight.uoregon.edu!news.uoregon.edu!Symiserver2.symantec.com!news From: tedm@agora.rdrop.com Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Alias on ethernet interface Date: 14 Dec 1996 06:05:23 GMT Organization: Symantec Corp. Lines: 41 Message-ID: <58tg33$nli@Symiserver2.symantec.com> References: <58olkl$j4p@samba.rahul.net> Reply-To: tedm@agora.rdrop.com NNTP-Posting-Host: shiva3.central.com X-Newsreader: IBM NewsReader/2 v1.2.5 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:32567 In <58olkl$j4p@samba.rahul.net>, Rainer Busch <busch@rahul.net> writes: >This is one for the networking experts: > >we are changing our provider. Now I want to be able to receive e-mail etc. >for some time at the new as well as the old internet address. Both lines >and routers are active. >Now I changed the address of ed0 to the new address, and aliased the old: > Forget all that IP number aliasing crap. If you want to receive e-mail from the old address and the new address on the same machine simply point both MX records to the same machine. For example: old name: foo.bar.com IP number 123.456.789.10 The DNS entry looks llike this: foo.bar.com A 123.456.789.10 foo.bar.com MX foo.bar.com New name: snafu.foo.com IP number 109.876.543.21 The DNS entry looks like this: snafu.foo.com A 109.876.543.21 snafu.foo.com MX snafu.foo.com Change the DNS entry for foo.bar.com to: foo.bar.com MX snafu.foo.com Now, modify the sendmail.cf file on snafu.foo.com to accept inbound SMTP mail for both names and your in business.