著者: Alan J. Flavell 日付: To: Exim users list 題目: Re: [Exim] Strange delays in connecting
On Wed, 12 Feb 2003, Dariusz Sznajder wrote:
> ident - 113/tcp?
> Should be reject if you don't like it - not drop (not only for Exim).
Indeed.
Another approach, if you don't like giving out "inside information" in
clear text, is the "crypted" option of pidentd. Speaking in general
terms...
The requester gets back an opaque token, which is meaningless to them,
but if presented, e.g when complaining about a suspected abuse, back
to the system admin of the other system, it serves two purposes:
1. the decrypted token identifies username, date, time of the action
2. the fact that the token could be decrypted verifies that
it's genuine.
Just how relevant this is when the user in question is an MTA daemon
isn't entirely clear to me, but ho hum.