Re: changing Sendmail server's IP address, nightmare!
As far as I know, sendmail uses DNS and the server's name resolution it is running on for the IP's. There is nowhere I know in sendmail where an IP is hard coded. If you are having any difficulty it is due to changes to your DNS, and the time it takes for DNS changes to propagate across the net. It sounds like you were doing too many changes at one time, moving to a new ISP which would require a change to all your IP addresses, AND changing your DNS from internal to the ISP's. In making these changes you need to first get on your new IP block, so you have internet access. Then update your DNS records for the new IP addresses. Then as a last step move the DNS to your ISP, making your server's DNS a slave DNS or just a caching DNS server. In making a move to your ISP's DNS be aware ISP's do NOT usually update their DNS maps often, typically once a week, then the new maps begin proliferating which usually takes 24-72 hours. Hope this helps. -Derek At 09:35 PM 2/25/2006, Curtis Hart wrote: Does anyone have any specific information on making IP address changes to Sendmail servers since I have found that this situation is a lot more difficult/tedious than I had thought. The Sendmail server in question is also providing DNS for a web server, but I would like to use our new ISP's DNS info for our web domains and for the mail server. In a nutshell, I recently started working for a small business that has a mail server and web server, this occurred just after they had already begun switching to a new ISP (Mpower). I thought I knew enough UNIX/sys admin info to make this happen but this has turned into a minor nightmare for me, since Sendmail has so many files that may contain the old IP info. - Yahoo! Mail Bring photos to life! New PhotoMail makes sharing a breeze. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: changing Sendmail server's IP address, nightmare!
It is not a nightmare to change a mailserver's IP number, but it is a long process to change a DNS servers IP number if that server was fully registered in the root nameservers. Generally, putting your main mailserver and main DNS server on the same box is considered not very smart these days. You need to get your ISP involved in this process, that kind of support is what your paying them for. If they can't help (and I highly doubt that) then find another ISP that can. Ted -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Curtis Hart Sent: Saturday, February 25, 2006 7:36 PM To: freebsd-questions@freebsd.org Subject: changing Sendmail server's IP address, nightmare! Does anyone have any specific information on making IP address changes to Sendmail servers since I have found that this situation is a lot more difficult/tedious than I had thought. The Sendmail server in question is also providing DNS for a web server, but I would like to use our new ISP's DNS info for our web domains and for the mail server. In a nutshell, I recently started working for a small business that has a mail server and web server, this occurred just after they had already begun switching to a new ISP (Mpower). I thought I knew enough UNIX/sys admin info to make this happen but this has turned into a minor nightmare for me, since Sendmail has so many files that may contain the old IP info. - Yahoo! Mail Bring photos to life! New PhotoMail makes sharing a breeze. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.1.0/269 - Release Date: 2/24/2006 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
changing Sendmail server's IP address, nightmare!
Does anyone have any specific information on making IP address changes to Sendmail servers since I have found that this situation is a lot more difficult/tedious than I had thought. The Sendmail server in question is also providing DNS for a web server, but I would like to use our new ISP's DNS info for our web domains and for the mail server. In a nutshell, I recently started working for a small business that has a mail server and web server, this occurred just after they had already begun switching to a new ISP (Mpower). I thought I knew enough UNIX/sys admin info to make this happen but this has turned into a minor nightmare for me, since Sendmail has so many files that may contain the old IP info. - Yahoo! Mail Bring photos to life! New PhotoMail makes sharing a breeze. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: changing Sendmail server's IP address, nightmare!
On 2006-02-25 19:35, Curtis Hart [EMAIL PROTECTED] wrote: Does anyone have any specific information on making IP address changes to Sendmail servers since I have found that this situation is a lot more difficult/tedious than I had thought. The Sendmail server in question is also providing DNS for a web server, but I would like to use our new ISP's DNS info for our web domains and for the mail server. In a nutshell, I recently started working for a small business that has a mail server and web server, this occurred just after they had already begun switching to a new ISP (Mpower). I thought I knew enough UNIX/sys admin info to make this happen but this has turned into a minor nightmare for me, since Sendmail has so many files that may contain the old IP info. Not necessarily. The Sendmail configuration in all the systems I use doesn't have hardcoded IP addresses _anywhere_. Sendmail can rely and usually *does* rely heavily on DNS for providing information about the IP addresses. The default FreeBSD setup uses the file /etc/mail/local-host-names as a list of hostnames or domain names for which delivery will be done 'locally', but that's pretty much all of it. Can you provide more information about the particular email DNS setup? If yes, then after you give us all the details of the setup you currently have, what you are trying to achieve, whaty you have tried so far and what has failed (including any interesting logs, configuration files, etc.) we will certainly be able to give you more substantial, to the point and correct help :) - Giorgos ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
