----- Original Message ----- From: "Sam Varshavchik" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, May 14, 2002 3:36 PM Subject: [courier-users] Re: esmtpauthclient and load balancing providers
> MH - Entwicklung writes: > > > Hello, > > > > I encountered the following problem: > > > > A provider offers the virtual host auth.smtp.kundenserver.de for > > authenticated smtp. > > This hostname may refer to different physical hosts. A reverse lookup shows > > a different hostname like e.g. mrelayng.kundenserver.de. > > The file esmtpauthclient needs to hold the real name of the host in order to > > work. Otherwise the mailrelay isn't recognized for authentication. > > > > Shouldn't the file esmtpauthclient also work for the virtual name? > > The problem here is the CNAME record. Use mrelayng.kundenserver.de instead > of auth.smtp.kundenserver.de > But the official name is auth.smtp.kundenserver.de. This may resolve as a completely different host (e.g. mrelayng2.kundenserver.de) some days later. Everytime the Provider changes something, I will have to enter the new A RECORD in esmtpauthclient. Imagine you have some dozens of servers running at different customers. And everytime their providers change the CNAME to a different host I have a busy hotline. I've seen providers doing this pretty often - I think for load balancing and availability reasons. Regards Manfred > -- > Sam > > > _______________________________________________________________ > > Have big pipes? SourceForge.net is looking for download mirrors. We supply > the hardware. You get the recognition. Email Us: [EMAIL PROTECTED] > _______________________________________________ > courier-users mailing list > [EMAIL PROTECTED] > Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users > _______________________________________________________________ Have big pipes? SourceForge.net is looking for download mirrors. We supply the hardware. You get the recognition. Email Us: [EMAIL PROTECTED] _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
