nanog mailing list archives
Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS
From: David Charlap <david.charlap () marconi com>
Date: Tue, 15 May 2001 19:26:41 -0400
Shawn McMahon wrote:
On Tue, May 15, 2001 at 02:09:30PM -0500, Brett Frankenberger wrote:My understanding is that we are talking about: (a) Doing a reverse lookup on the IP address, and getting a name. (b) Doing a forward lookup on that name, and making sure you get the right IP address back.No, not the security part of the thread, the mail filter part of the thread. Sorry, should have specified.
... unless the person running the mail server configures it to use the publicly-visible hostname instead of deriving a hostname from OS information. That's how I have my sendmail.cf file configured at home. It doesn't seem to have any problems. Of course, mail server distributions don't come preconfigured this way, so it will still cause problems for those who are unable/unwilling to hack their sendmail.cf file. -- David
Current thread:
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS, (continued)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Christopher A. Woodfield (May 14)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Adam McKenna (May 14)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Christopher A. Woodfield (May 14)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Adam McKenna (May 15)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Valdis . Kletnieks (May 15)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Pyda Srisuresh (May 15)
- RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Vivien M. (May 15)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Shawn McMahon (May 15)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Brett Frankenberger (May 17)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Shawn McMahon (May 17)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS David Charlap (May 17)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Christopher A. Woodfield (May 14)
- RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Pyda Srisuresh (May 15)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Eric A. Hall (May 15)
- RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS John Fraizer (May 14)
- RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Dominic J. Eidson (May 14)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Adam McKenna (May 14)
- Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Adam Rothschild (May 14)