[postfix-jp: 2640] Re: lost connection after CONNECT で不可解な接続元

[TAOKA Fumiyoshi <fmysh@xxxxxxxxxxxxxx>]

On 2007/06/20, at 9:50, paseri wrote:

>> Jun 19 18:48:19 mx postfix/smtpd[334]: connect from unknown[unknown]
>> Jun 19 18:48:19 mx postfix/smtpd[334]: lost connection after  
>> CONNECT from unknown[unknown]
>> Jun 19 18:48:19 mx postfix/smtpd[334]: disconnect from unknown 
>> [unknown]
> 逆引きが失敗したり未設定のホストだと、from は  
> unknown となることは理解していますが、
> その後の接続元の IP アドレスまでも unknown となる 
> のが、
> どういったときに起こるのかご存知のかたいらっしゃいますか？

ピアの情報は src/smtpd_peer.c にある smtpd_peer_init 
() が初期化してます。

/* DESCRIPTION
/*      The smtpd_peer_init() routine attempts to produce a printable
/*      version of the peer name and address of the specified socket.
/*      Where information is unavailable, the name and/or address
/*      are set to "unknown".

/* .IP name
/*      The verified client hostname. This name is represented by
/*      the string "unknown" when 1) the address->name lookup failed,
/*      2) the name->address mapping fails, or 3) the name->address
/*      does not produce the client IP address.

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