On 2013/05/07 14:26, Ted Unangst wrote:
> On Sun, May 05, 2013 at 15:18, Stuart Henderson wrote:
> 
> > I don't feel too strongly about it but my preference would be to
> > log both. There are circumstances (e.g. dhcp with dynamic dns updates)
> > where it's useful to have the reverse at the time of connection.
> 
> Are you talking about internal or external networks? If it's your
> network you should be able to figure it out, and if it's the internet,

Either..

> I don't know of any ISPs that give you control over dynamic reverse
> lookups.

Funny - apart from mobile networks, I don't think I've ever used
an ISP that *doesn't* let me do that. (There are plenty I could use
which wouldn't let me do that too of course, but they also suck in
other ways).

> I don't like logging both because there's a not unreasonable chance
> the reverse name will be a complete lie, which will just mislead you.

Oh, it doesn't do a forward check of the name it got from reverse
lookup? Yes that's bad.

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