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昔、db2inst1 とかdb2fenc1とかいうユーザーを作っていたらしく、そのことをもうすっかり忘れていたのですが、
最近そのユーザーで不正アクセスがあったみたいで。
ｶﾞｸｶﾞｸ(((( ；ﾟДﾟ))))ﾌﾞﾙﾌﾞﾙ

Apr 23 12:24:35 chebyshev postfix/smtp[15833]: D80C316EE2: to=, relay=none, delay=436667, status=deferred (Host or do
main name not found. Name service error for name=filipinalovematch.com type=MX: Host not found, try again)
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: D80C316EE2: from=, status=expired, returned to sender
Apr 23 12:24:35 chebyshev postfix/cleanup[15838]: 558432AAB74: message-id=<20060423032435.558432AAB74@toyao.net>
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: 558432AAB74: from=<>, size=4598, nrcpt=1 (queue active)
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: D80C316EE2: removed
Apr 23 12:24:35 chebyshev postfix/local[15853]: 558432AAB74: to=, relay=local, delay=0, status=bounced (unknown user: “db2fenc1”)
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: 558432AAB74: removed
Apr 23 12:24:35 chebyshev postfix/smtp[15842]: 0CEB2F93D: to=, relay=none, delay=436664, status=deferred (Host or domain name
not found. Name service error for name=herbacet.com type=MX: Host not found, try again)
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: 0CEB2F93D: from=, status=expired, returned to sender
Apr 23 12:24:35 chebyshev postfix/cleanup[15850]: DF7242AAB74: message-id=<20060423032435.DF7242AAB74@toyao.net>
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: DF7242AAB74: from=<>, size=4545, nrcpt=1 (queue active)
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: 0CEB2F93D: removed
Apr 23 12:24:35 chebyshev postfix/local[15844]: DF7242AAB74: to=, relay=local, delay=0, status=bounced (unknown user: “db2fenc1”)
Apr 23 12:24:35 chebyshev postfix/qmgr[984]: DF7242AAB74: removed