적수네 동네 - 질문과 답변 [ 게시물 수정 ]

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: The original message was received at Thu, 25 Apr 2002 22:21:59 +0900
: from localhost
: with id g3PDLxC26761
: 
:    ----- The following addresses had permanent fatal errors -----
: <collectd_518@netian.com>
:     (reason: 550 RCPT TO:<collectd_518@netian.com> User unknown)
: 
:    ----- Transcript of session follows -----
: ... while talking to mx0.netian.com.:
: >>> RCPT To:<collectd_518@netian.com>
: <<< 550 RCPT TO:<collectd_518@netian.com> User unknown
: 550 5.1.1 <collectd_518@netian.com>... User unknown
: 
: 전번에 해킹을 한번 당한적이 있었습니다만... 외국쪽인듯..
: 그 이후로 여기저기서 스펨메일도 많이오고 참 찝찝합니다... ㅜㅜ
: 그래서 TCP wrappers랑 iptable도 설정하고 이것저것 신경을 썼습니다만..
: 위와같은 메일이 루트로부터 조금씩 오다가..
: 오늘아침에는 600통 가까이 와있군요....
: 전부 같은 내용인데 다른부분이라면 메일 ID가 
: collectd_XXX@netian.com 에서 XXX부분의 숫자만 바뀝니다.
: 이게 대체 무슨일이 벌어지는건지좀 조언 부탁드립니다.
: 
: P.S 그리고 첨부된게 있었네요... 이런게..
: 
: The original message was received at Fri, 26 Apr 2002 10:22:18 +0900
: from acc1-ppp5.mar.dialup.connect.net.au [210.10.240.5]
: 
:    ----- The following addresses had permanent fatal errors -----
: <ldog999@att.net>
:     (reason: 550 Invalid recipient: <ldog999@att.net>)
: <ldogdpla@att.net>
:     (reason: 550 Invalid recipient: <ldogdpla@att.net>)
: <ldog9969@att.net>
:     (reason: 550 Invalid recipient: <ldog9969@att.net>)
: <ldog98@att.net>
:     (reason: 550 Invalid recipient: <ldog98@att.net>)
: <ldog93@att.net>
:     (reason: 550 Invalid recipient: <ldog93@att.net>)
: <ldog928@att.net>
:     (reason: 550 Invalid recipient: <ldog928@att.net>)
: <ldogent@att.net>
:     (reason: 550 Invalid recipient: <ldogent@att.net>)
: <ldog911@hotmail.com>
:     (reason: 550 Requested action not taken:user account inactive)
: <ldoganlar@att.net>
:     (reason: 550 Invalid recipient: <ldoganlar@att.net>)
: <ldoga@att.net>
:     (reason: 550 Invalid recipient: <ldoga@att.net>)
: <ldogan7604@att.net>
:     (reason: 550 Invalid recipient: <ldogan7604@att.net>)
: <ldogboogie@att.net>
:     (reason: 550 Invalid recipient: <ldogboogie@att.net>)
: <ldog91@att.net>
:     (reason: 550 Invalid recipient: <ldog91@att.net>)
: <ldogdachil@att.net>
:     (reason: 550 Invalid recipient: <ldogdachil@att.net>)
: <ldog95@att.net>
:     (reason: 550 Invalid recipient: <ldog95@att.net>)
: <ldogas@att.net>
:     (reason: 550 Invalid recipient: <ldogas@att.net>)
: <ldogfrmca@att.net>
:     (reason: 550 Invalid recipient: <ldogfrmca@att.net>)
: <ldogan@att.net>
:     (reason: 550 Invalid recipient: <ldogan@att.net>)
: <ldog99@att.net>
:     (reason: 550 Invalid recipient: <ldog99@att.net>)
: 
:    ----- Transcript of session follows -----
: ... while talking to gateway5.att.net.:
: <<< 421 mtiwgwc29.worldnet.att.net connection refused from 
: [218.52.33.180]
: ... while talking to gateway1.att.net.:
: >>> RCPT To:<ldog99@att.net>
: <<< 550 Invalid recipient: <ldog99@att.net>
: 550 5.1.1 <ldog99@att.net>... User unknown
: >>> RCPT To:<ldogan@att.net>
: <<< 550 Invalid recipient: <ldogan@att.net>
: 550 5.1.1 <ldogan@att.net>... User unknown
: >>> RCPT To:<ldogfrmca@att.net>
: <<< 550 Invalid recipient: <ldogfrmca@att.net>
: 550 5.1.1 <ldogfrmca@att.net>... User unknown
: >>> RCPT To:<ldogas@att.net>
: <<< 550 Invalid recipient: <ldogas@att.net>
: 550 5.1.1 <ldogas@att.net>... User unknown
: >>> RCPT To:<ldog95@att.net>
: <<< 550 Invalid recipient: <ldog95@att.net>
: 550 5.1.1 <ldog95@att.net>... User unknown
: >>> RCPT To:<ldogdachil@att.net>
: <<< 550 Invalid recipient: <ldogdachil@att.net>
: 550 5.1.1 <ldogdachil@att.net>... User unknown
: >>> RCPT To:<ldog91@att.net>
: <<< 550 Invalid recipient: <ldog91@att.net>
: 550 5.1.1 <ldog91@att.net>... User unknown
: >>> RCPT To:<ldogboogie@att.net>
: <<< 550 Invalid recipient: <ldogboogie@att.net>
: 550 5.1.1 <ldogboogie@att.net>... User unknown
: >>> RCPT To:<ldogan7604@att.net>
: <<< 550 Invalid recipient: <ldogan7604@att.net>
: 550 5.1.1 <ldogan7604@att.net>... User unknown
: >>> RCPT To:<ldoga@att.net>
: <<< 550 Invalid recipient: <ldoga@att.net>
: 550 5.1.1 <ldoga@att.net>... User unknown
: >>> RCPT To:<ldoganlar@att.net>
: <<< 550 Invalid recipient: <ldoganlar@att.net>
: 550 5.1.1 <ldoganlar@att.net>... User unknown
: >>> RCPT To:<ldogent@att.net>
: <<< 550 Invalid recipient: <ldogent@att.net>
: 550 5.1.1 <ldogent@att.net>... User unknown
: >>> RCPT To:<ldog928@att.net>
: <<< 550 Invalid recipient: <ldog928@att.net>
: 550 5.1.1 <ldog928@att.net>... User unknown
: >>> RCPT To:<ldog93@att.net>
: <<< 550 Invalid recipient: <ldog93@att.net>
: 550 5.1.1 <ldog93@att.net>... User unknown
: >>> RCPT To:<ldog98@att.net>
: <<< 550 Invalid recipient: <ldog98@att.net>
: 550 5.1.1 <ldog98@att.net>... User unknown
: >>> RCPT To:<ldog9969@att.net>
: <<< 550 Invalid recipient: <ldog9969@att.net>
: 550 5.1.1 <ldog9969@att.net>... User unknown
: >>> RCPT To:<ldogdpla@att.net>
: <<< 550 Invalid recipient: <ldogdpla@att.net>
: 550 5.1.1 <ldogdpla@att.net>... User unknown
: >>> RCPT To:<ldog999@att.net>
: <<< 550 Invalid recipient: <ldog999@att.net>
: 550 5.1.1 <ldog999@att.net>... User unknown
: ... while talking to mx10.hotmail.com.:
: >>> RCPT To:<ldog911@hotmail.com>
: <<< 550 Requested action not taken:user account inactive
: 550 5.1.1 <ldog911@hotmail.com>... User unknown
  스펨서버로 이용당하시는게 아닌지 함 체크해보심이 어떠할지요....