- WLUG - wlug.mailman3.com

Re: [Wlug] SPF

by Keith Wright

> From: "Chaim The Squirrel Keeper" <richspk(a)gmail.com> > > On Sun, Apr 6, 2008 at 1:46 AM, Keith Wright <kwright(a)keithdiane.us> wrote: > > > mail gets rejected out of hand, just because it > > comes from a dsl line. > > If that's the reason your mail gets rejected, it's pretty cheap to > get yourself a domain name without hosting or co-lo. I send mail from a computer in my basement through a DSL line. There is no "hosting" or "co-lo" as I understand those terms, so I don't see the relevance of your comment. -- Keith

April 6, 2008

Linux System Admin recommendations?

by Andrew Schiller

We are a small local company that is trying to do something different. We have chosen open source technologies in building our ideas. As the company has become more successful we need help supporting them. We are looking for a team of folks who are passionate about technology and know open source to provide thoughtful, reliable system administration services for our Redhat linux os systems. We have made some bad choices in the past, and as a result received service that has hurt us. We don't know where to look for guidance in choosing, and we are hoping the user group can recommend some good folks who will be there when we need them with depth of knowledge and abilities in performing routine maintenance as well as emergency support when we need it. Your recommendations would truly mean a lot to us. Mercader

April 6, 2008

Re: [Wlug] DNS settings

by Brian J. Conway

On Sun, 6 Apr 2008 14:44:38 +0530 Deepan <codeshepherd(a)gmail.com> wrote: > Hi All, > I would like to configure my laptop to use > 4.2.2.2/4.2.2.3 as DNS. The problems is everytime > my machines requests for a dynamic IP via DHCP, my > DNS settings get reset. Is it possible to override > this? I am running Fedora 8. > Regards > Deepan > Sudoku Solver: http://www.sudoku-solver.net/ It will depend on the DHCP client you use, of course, but all my OSes have standardized on ISC's dhclient. In that case, it's a matter of editing /etc/dhclient.conf (or /etc/dhcp3/dhclient.conf) and making use of the following or similar lines: supersede domain-name "example.com"; prepend domain-name-servers 127.0.0.1; I think you can use supersede, prepend, and append for any of the above, but the documentation can tell you for sure. Brian J. Conway

April 6, 2008

Re: [Wlug] Forwarding mail servers, was: SPF

by Dick Goodman

I've had a Speakeasy DSL for -- I think -- about 6 years. I've got two mail servers, serving more than half a dozen domains. I don't forward through Speakeasy and I've never had a problem with rejected mail. Of course my Speakeasy DSL has multiple static IPs, which might make a difference. Keith, I wish I only got 100 spam/day .. across all my accounts its closer to a million/year incoming Dick >On Sun, Apr 6, 2008 at 1:46 AM, Keith Wright <kwright(a)keithdiane.us> wrote: >> I don't use Speakeasy web mail, >> but if I don't forward through Speakeasy, too much >> mail gets rejected out of hand, just because it >> comes from a dsl line. (I think. (It's been >> a while since I tried it, and you never know >> exactly why you have been rejected.)) > >If that's the reason your mail gets rejected, it's pretty cheap to get >yourself a domain name without hosting or co-lo. > >-- >Rich

April 6, 2008

Re: [Wlug] SPF

by Chaim The Squirrel Keeper

On Sun, Apr 6, 2008 at 1:46 AM, Keith Wright <kwright(a)keithdiane.us> wrote: > I don't use Speakeasy web mail, > but if I don't forward through Speakeasy, too much > mail gets rejected out of hand, just because it > comes from a dsl line. (I think. (It's been > a while since I tried it, and you never know > exactly why you have been rejected.)) If that's the reason your mail gets rejected, it's pretty cheap to get yourself a domain name without hosting or co-lo. -- Rich

April 6, 2008

DNS settings

by Deepan

Hi All, I would like to configure my laptop to use 4.2.2.2/4.2.2.3 as DNS. The problems is everytime my machines requests for a dynamic IP via DHCP, my DNS settings get reset. Is it possible to override this? I am running Fedora 8. Regards Deepan Sudoku Solver: http://www.sudoku-solver.net/

April 6, 2008

Re: [Wlug] SPF

by Keith Wright

> From: Jamie Guinan <guinan(a)bluebutton.com> > > Are any of you admins out there running SPF, or something similar? This question is too hard for me. What is "running SPF"? I have these top secret records in my DNS zone file. keithdiane.us. IN MX 10 dsl.keithdiane.us. keithdiane.us. IN TXT "v=spf1 mx include:speakeasy.net ~all" (Don't tell anybody.) And I send all my mail through speakeasy, by which I mean that the SMTP server at keithdiane.us forwards through there as a "smart host". I don't use Speakeasy web mail, but if I don't forward through Speakeasy, too much mail gets rejected out of hand, just because it comes from a dsl line. (I think. (It's been a while since I tried it, and you never know exactly why you have been rejected.)) On the other hand, when a host sends mail _to_ my server, it does not check its DNS for SPF at all. > How well does it work for you? Compared to what? I'm not sure how it works, because I've really never done it any other way. I do know that spam is way out of hand. I get over 100 a day of total stupid stink'n spam. (This does not count mailing lists that I am subscribed to that I do not actualy read; just really stupid crap in Russian, repetitious attempts to sell stuff I had better not mention for fear of falling into the WPI filter, usw) It's almost to the point where I might do something . . . soon. Real . Soon . . . Now . . -- Keith .

April 6, 2008

Re: [Wlug] SPF

by Dick Goodman

I run 4 Linux mailservers and do all my own DNS for multiple domains Yesterday (I think) one account on one domain got about 500 emails similar to what you described in a period of about 30 minutes. I have SPF records on many of my domains (because it was so simple to set up), and promptly added it to the DNS of the domain of the affected account. Today the number of such emails was down at least 10x, but I can't say for sure it was the SPF that did it. Dick >Hi, > >Are any of you admins out there running SPF, or something similar? > > http://www.openspf.org/ > >How well does it work for you? > >Today I started getting a large number of "undeliverable" responses >due to spammers forging my email address in the From: address. > >Wondering if SPF is worth the trouble to set up. > >I'm using postfix, btw. > >Thanks, >-Jamie

April 2, 2008

Re: [Wlug] SPF

by Chuck Anderson

On Tue, Apr 01, 2008 at 11:48:35AM -0400, Jamie Guinan wrote: > Are any of you admins out there running SPF, or something similar? > > http://www.openspf.org/ > > How well does it work for you? DKIM is the "new SPF" standardized effort backed by Yahoo!, Cisco, Sendmail, Inc. and others. It combines Yahoo!'s DomainKeys and another one whose name I forget now. If I were to set something up, I'd probably use DKIM, but I have no experience with it myself.

April 1, 2008

SPF

by Jamie Guinan

Hi, Are any of you admins out there running SPF, or something similar? http://www.openspf.org/ How well does it work for you? Today I started getting a large number of "undeliverable" responses due to spammers forging my email address in the From: address. Wondering if SPF is worth the trouble to set up. I'm using postfix, btw. Thanks, -Jamie

April 1, 2008