October 2003 - WLUG - wlug.mailman3.com

Re: mail disaster recovery

by Bob George

"Richard Goodman" <r.goodman(a)11harvard.com> wrote: > My home DSL has been down for over 48 hours and it appears that it will be > down for several more days. (I spare you the gory details). I am concerned > about losing mail coming into various domains at that site. I was in a similar situation not too long ago when prolonged outages, address changes and ISP port blocking became too much to deal with. Losing my mail was fine, but the family went nuts when I was on the road and we had an outage. I wound up moving my SMTP to a $2/mo. hosting plan that will queue mail for me until I poll using POP via fetchmail. I've permanently pointed my MX record there, as their reliability is far better than mine (residential cable). I know this isn't as attractive as doing it yourself, and it might not be an option if you have a lot of domains to deal with. But it might be a quick fix if that outage is going to go on for a long time. > [...] > I have modified the secondary DNS records for those domains (on a machine > at my office - also on DSL) with an higher cost MX record pointing to a > machine at the office also running RH 7.3 and sendmail, which I assume will > pick up and queue the mail. The DNS TTLs are reasonably short, fortunately. If the TTLs are short, hopefully senders will queue it until your backup is in place. > I've done this following O'Reilly/Sendmail book 2nd edition, but its not > always crystal clear if you don't already understand it! Is there anything > else I have to do on the backup machine (pointed to by the new MX records), > particularly is there anything I have to do to its sendmail config files? As Mike mentioned, there is configuration required on the backup server to accept for your domains. Nice to have an employer that doesn't mind that though! > Any other pointers or "gotcha"s to this whole process? I was having fun doing it all via postfix at home, but I'm glad I made the move. Not only do I have less twiddling to do on my own time, but when my stuff was all torn down and shipped here from Phoenix, I didn't lost anything. Good luck! - Bob

Oct. 1, 2003

Re: [Wlug] mail disaster recovery

by Karl Hiramoto

on the backup RH mail box: add you domain to the backup /etc/mail/local-host-names and set it to relay in /etc/mail/access type make in the /etc/mail/ directory and restart sendmail. you can try testing it. send mail to your domian. also, could telnet to mailserver.com 25 and put SMTP comands to verify it is accepting mail for that domain. when it is buffering the mail, it should show up in /var/spool/mail if your home DSL is going to be down for some time, you might just want to bring the box into the office, and point the DNS directly at it, if you can. On Wed, 1 Oct 2003, Richard Goodman wrote: > My home DSL has been down for over 48 hours and it appears that it will be > down for several more days. (I spare you the gory details). I am concerned > about losing mail coming into various domains at that site. > That RH 7.3 machine runs mail/web/primary DNS for those domains. > > I have modified the secondary DNS records for those domains (on a machine > at my office - also on DSL) with an higher cost MX record pointing to a > machine at the office also running RH 7.3 and sendmail, which I assume will > pick up and queue the mail. The DNS TTLs are reasonably short, fortunately. > > I've done this following O'Reilly/Sendmail book 2nd edition, but its not > always crystal clear if you don't already understand it! Is there anything > else I have to do on the backup machine (pointed to by the new MX records), > particularly is there anything I have to do to its sendmail config files? > > Any other pointers or "gotcha"s to this whole process? > > Dick > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø Karl Hiramoto <karl(a)hiramoto.org> Work: 978-425-2090 ext 25 Cell: 508-517-4819 http://karl.hiramoto.org/ AOL IM ID = KarlH420 Yahoo_IM = karl_hiramoto ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø How can you work when the system's so crowded?

Oct. 1, 2003

Re: [Wlug] mail disaster recovery

by Mike Clark

I'm not sure I completely understand. You have a few domains that are hosted on a server at your home that has DSL for the connection and it's down? If that is the situation then once you change the MX records to point to another server just make sure that the server you are pointing to will accept mail for that virtual domain. Also make sure that you pull your MX records from the server that is down so when it comes back up there are no conflicts. I don't know sendmail.cf that well, I use Qmail here that hosts over 50 different virtual domains with no problems. If that doesn't answer your question then let me know. At 02:56 PM 10/1/2003 -0400, you wrote: >My home DSL has been down for over 48 hours and it appears that it will be >down for several more days. (I spare you the gory details). I am concerned >about losing mail coming into various domains at that site. >That RH 7.3 machine runs mail/web/primary DNS for those domains. > >I have modified the secondary DNS records for those domains (on a machine >at my office - also on DSL) with an higher cost MX record pointing to a >machine at the office also running RH 7.3 and sendmail, which I assume >will pick up and queue the mail. The DNS TTLs are reasonably short, >fortunately. > >I've done this following O'Reilly/Sendmail book 2nd edition, but its not >always crystal clear if you don't already understand it! Is there >anything else I have to do on the backup machine (pointed to by the new MX >records), particularly is there anything I have to do to its sendmail >config files? > >Any other pointers or "gotcha"s to this whole process? > >Dick > >_______________________________________________ >Wlug mailing list >Wlug(a)mail.wlug.org >http://mail.wlug.org/mailman/listinfo/wlug >

Oct. 1, 2003

mail disaster recovery

by Richard Goodman

My home DSL has been down for over 48 hours and it appears that it will be down for several more days. (I spare you the gory details). I am concerned about losing mail coming into various domains at that site. That RH 7.3 machine runs mail/web/primary DNS for those domains. I have modified the secondary DNS records for those domains (on a machine at my office - also on DSL) with an higher cost MX record pointing to a machine at the office also running RH 7.3 and sendmail, which I assume will pick up and queue the mail. The DNS TTLs are reasonably short, fortunately. I've done this following O'Reilly/Sendmail book 2nd edition, but its not always crystal clear if you don't already understand it! Is there anything else I have to do on the backup machine (pointed to by the new MX records), particularly is there anything I have to do to its sendmail config files? Any other pointers or "gotcha"s to this whole process? Dick

Oct. 1, 2003

Re: [Wlug] resample mp3

by Karl Hiramoto

nevermind, RTFM and i answered my own question. sox infile.wav -r 44000 -c 2 outfile.wav On Wed, 1 Oct 2003, Karl Hiramoto wrote: > > I have an mp3 that i wish to burn to CD. > mp3 original is 22khz mono. Using the xmms disk writer i can output > this to wav, but the sampling is still the same. > > To burn to CD, cdrecord requires 44khz stereo. Anyone know of an > easy way to get into the format i need? > > > Thanks > > -- ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø Karl Hiramoto <karl(a)hiramoto.org> Work: 978-425-2090 ext 25 Cell: 508-517-4819 http://karl.hiramoto.org/ AOL IM ID = KarlH420 Yahoo_IM = karl_hiramoto ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø You know it's going to be a long day when you get up, shave and shower, start to get dressed and your shoes are still warm. -- Dean Webber

Oct. 1, 2003

resample mp3

by Karl Hiramoto

I have an mp3 that i wish to burn to CD. mp3 original is 22khz mono. Using the xmms disk writer i can output this to wav, but the sampling is still the same. To burn to CD, cdrecord requires 44khz stereo. Anyone know of an easy way to get into the format i need? Thanks -- ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø Karl Hiramoto <karl(a)hiramoto.org> Work: 978-425-2090 ext 25 Cell: 508-517-4819 http://karl.hiramoto.org/ AOL IM ID = KarlH420 Yahoo_IM = karl_hiramoto ¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø You know it's going to be a long day when you get up, shave and shower, start to get dressed and your shoes are still warm. -- Dean Webber

Oct. 1, 2003

Re: [Wlug] Very confused ...

by Andy Stewart

On Wednesday 01 October 2003 1:40 am, Theo Van Dinter wrote: > I was searching around Google for something, and I came across WLUG > information, and I thought it was wierd. Then I noticed the URL: > http://wlug.org.nz/ > > They are, apparently, "the WLUG", versus our just being "WLUG". That's OK, I'll just keep putting "Worcester, MA USA" on all things "WLUG" so "the WLUG" folks won't get confused, not to mention the folks in Worcester, England or Wuermtal, Germany. :-) I also found: www.wlug.net - Whidbey Linux Users Group (in Washington, USA) www.wlug.de - Wuermtal Linux Users Group (In Germany) wlug.paradise.net.nz - Wellington Linux Users Group ...and there are probably many others. Later, Andy -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA USA http://www.wlug.org

Oct. 1, 2003

Very confused ...

by Theo Van Dinter

I was searching around Google for something, and I came across WLUG information, and I thought it was wierd. Then I noticed the URL: http://wlug.org.nz/ They are, apparently, "the WLUG", versus our just being "WLUG". -- Randomly Generated Tagline: "... and now we have a parallelogram, or at least we would if I could draw." - Prof. Farr

Oct. 1, 2003