smtp、pop3についてのコマンドレスポンスについて
SMTPでのメールの送り方について
$ telnet localhost 25 <---入力
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 vmvine32.mie-chukyo-u.ac.jp ESMTP Postfix
HELO localhost
250 vmvine32.mie-chukyo-u.ac.jp
MAIL FROM: <okada@localhost> <---入力
250 Ok
RCPT TO: <okada@localhost> <---入力
250 Ok
DATA <---入力
354 End data with <CR><LF>.<CR><LF>
From: <okada@localhost> <---入力
To: <okada@localhost> <---入力
Subject: TEST1 <---入力
<---入力
TEST MSG. <---入力
. <---入力
250 Ok: queued as 6767B5BCC2
QUIT <---入力
221 Bye
Connection closed by foreign host.
pop3でのメールの受信について
$ telnet localhost 110 <---入力
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK Qpopper (version 4.0.9) at vmvine32.mie-chukyo-u.ac.jp starting. <14168.1160013216@vmvine32.mie-chukyo-u.ac.jp>
USER okada <---入力
+OK Password required for okada.
PASS ****** <---入力
+OK okada has 1 visible message (0 hidden) in 509 octets.
LIST <---入力
+OK 1 visible messages (509 octets)
1 509
.
RETR 1 <---入力
+OK 509 octets
Return-Path: <okada@vmvine32.mie-chukyo-u.ac.jp>
X-Original-To: okada
Delivered-To: okada@vmvine32.mie-chukyo-u.ac.jp
Received: by vmvine32.mie-chukyo-u.ac.jp (Postfix, from userid 500)
id 34A685BCC2; Thu, 5 Oct 2006 10:46:45 +0900 (JST)
To: okada@vmvine32.mie-chukyo-u.ac.jp
Subject: TEST2
Message-Id: <20061005014645.34A685BCC2@vmvine32.mie-chukyo-u.ac.jp>
Date: Thu, 5 Oct 2006 10:46:45 +0900 (JST)
From: okada@vmvine32.mie-chukyo-u.ac.jp (Okada)
X-UIDL: Cc5!!DhV"!fUI"!5>*"!
TEST MSG2.
.
QUIT <---入力
+OK Pop server at vmvine32.mie-chukyo-u.ac.jp signing off.
Connection closed by foreign host.
メッセージの削除(認証後)
LIST <---入力 +OK 2 visible messages (1029 octets) 1 521 2 508 (略) DELE 1 <---入力(削除) +OK Message 1 has been deleted. LIST <---入力 +OK 1 visible messages (508 octets) 2 508
$ telnet localhost 110 <---入力 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. +OK Qpopper (version 4.0.9) at vmvine32.mie-chukyo-u.ac.jp starting. <14230.1160013800@vmvine32.mie-chukyo-u.ac.jp> <---(チャレンジワード) APOP okada 1c576f**************30639dace3af <---入力(MD5ハッシュ値) +OK okada has 1 visible message (0 hidden) in 520 octets. LIST <---入力 +OK 1 visible messages (520 octets) 1 520 . QUIT <---入力 +OK Pop server at vmvine32.mie-chukyo-u.ac.jp signing off. Connection closed by foreign host.
APOPでのMD5のハッシュ値を作成するにはチャレンジワードとパスワードを連続文字列として作成する。
上記の場合はパスワードが*****の場合は
$ echo -n '<14230.1160013800@vmvine32.mie-chukyo-u.ac.jp>*****' | md5sum
1c576f**************30639dace3af -