nanog mailing list archives
RE: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS
From: Pyda Srisuresh <srisuresh () yahoo com>
Date: Tue, 15 May 2001 10:41:10 -0700 (PDT)
--- "Vivien M." <vivienm () dyndns org> wrote:
-----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of Pyda Srisuresh Sent: May 15, 2001 12:03 PM To: Valdis.Kletnieks () vt edu; Adam McKenna Cc: nanog () nanog org Subject: Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS Forcing hostnames and PTR's to match will also prevent people from NAT land accessing your servers. There are hardly any NAT implementations that do dynamic DNS updates.Your NAT implementation must not be the same as the ones I've worked with, because with the [simple] ones I've seen, you have something like 192.168.0.0/24 all coming out and talking to the world as 1.2.3.4 (the more elaborate implementations give each private IP a unique outside IP, in which case you just set up your DNS for each IP. A little more work, perhaps, but...). Now, if 1.2.3.4 has proper matching forward/reverse DNS lookups, I don't see how people behind someone else's NAT pose a problem.
Sure, not in the case of NAPT (assuming you have a PTR record set for 1.2.3.4). My point is merely that there may be many cases it is not so straight forward to do the DNS updates for PTR records.
Vivien -- Vivien M. vivienm () dyndns org Assistant System Administrator Dynamic DNS Network Services http://www.dyndns.org/
cheers, suresh __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/
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 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 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)