Dear All, I have been using centos 5.1 for quite some time as out DNS and mail server and been workin fine i use sendmail as my mail server i did setup a backup mail server as per docs and ran th dns test from http://www.checkdns.net and it says both the mail servers are fine but i would like to know the following how would i really know if my main primary server is down all my mails r goin to my secondary mail server and when my primary is up are the mails copied back to my primary i did put down my mail server for abt 3 hrs cause cant keep it down for long but did not really see anything also are there any websites that can chec both my mail servers correctly apprecite and thnaks -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
On Monday 14 July 2008 16:45:39 fabian dacunha wrote:> how would i really know if my main primary server is down all my mails r > goin to my secondary mail server > > and when my primary is up are the mails copied back to my primary > > i did put down my mail server for abt 3 hrs cause cant keep it down for > long but did not really see anythingYou have a few options here. You can write, or have someone write a script which monitors the servers. You can install some of the server monitoring s/w that's available. F.ex. Zenoss. Google or check sourceforge.net for management tools. -- Bobby
on 7-14-2008 1:45 PM fabian dacunha spake the following:> Dear All, > > I have been using centos 5.1 for quite some time as out DNS and mail server > and been workin fine > > i use sendmail as my mail server > > i did setup a backup mail server as per docs and ran th dns test from > http://www.checkdns.net > > and it says both the mail servers are fine > > > but i would like to know the following > > how would i really know if my main primary server is down all my mails r > goin to my secondary mail server > > and when my primary is up are the mails copied back to my primary > > i did put down my mail server for abt 3 hrs cause cant keep it down for > long but did not really see anything > > also are there any websites that can chec both my mail servers correctly > > > apprecite and thnaks > > > >A real simple test would be to bring down the primary and send yourself something from an outside address like yahoo or gmail. give it 10 or 15 minutes, bring the primary up and when you see the message to yourself, it should have a header from your backup server also. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!! -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 258 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20080714/200a9606/attachment-0002.sig>
Thanks Scott i did actually down my primary server n w8ed n got the mail which was sent but actually did not see the header from my secondary mail server i will test it again really apprecitte thnks once again regards fabian> on 7-14-2008 1:45 PM fabian dacunha spake the following: >> Dear All, >> >> I have been using centos 5.1 for quite some time as out DNS and mail >> server >> and been workin fine >> >> i use sendmail as my mail server >> >> i did setup a backup mail server as per docs and ran th dns test from >> http://www.checkdns.net >> >> and it says both the mail servers are fine >> >> >> but i would like to know the following >> >> how would i really know if my main primary server is down all my mails r >> goin to my secondary mail server >> >> and when my primary is up are the mails copied back to my primary >> >> i did put down my mail server for abt 3 hrs cause cant keep it down for >> long but did not really see anything >> >> also are there any websites that can chec both my mail servers correctly >> >> >> apprecite and thnaks >> >> >> >> > A real simple test would be to bring down the primary and send yourself > something from an outside address like yahoo or gmail. give it 10 or 15 > minutes, bring the primary up and when you see the message to yourself, it > should have a header from your backup server also. > > -- > MailScanner is like deodorant... > You hope everybody uses it, and > you notice quickly if they don't!!!! > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >-- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.