经常有这样的邮件给我，为什么呀

wlhyf

sshd:
   Authentication Failures:
      ident (203.231.200.4 ): 1 Time(s)
      root (203.231.200.4 ): 38 Time(s)
      amanda (203.231.200.4 ): 1 Time(s)
      lp (203.231.200.4 ): 2 Time(s)
      mail (203.231.200.4 ): 2 Time(s)
      postgres (203.231.200.4 ): 11 Time(s)
      apache (203.231.200.4 ): 2 Time(s)
      postgres (219x123x39x114.ap219.ftth.ucom.ne.jp ): 1 Time(s)
      mysql (203.231.200.4 ): 3 Time(s)
      news (203.231.200.4 ): 3 Time(s)
      sshd (203.231.200.4 ): 2 Time(s)
      postfix (203.231.200.4 ): 1 Time(s)
      nobody (203.231.200.4 ): 1 Time(s)
      rpm (203.231.200.4 ): 1 Time(s)
      ldap (203.231.200.4 ): 1 Time(s)
      squid (203.231.200.4 ): 1 Time(s)
      bin (203.231.200.4 ): 1 Time(s)
      games (203.231.200.4 ): 2 Time(s)
      mailman (203.231.200.4 ): 1 Time(s)
      adm (203.231.200.4 ): 1 Time(s)
      root (219.148.157.220 ): 3 Time(s)
      ftp (203.231.200.4 ): 2 Time(s)
      operator (203.231.200.4 ): 1 Time(s)

login:
   Sessions Opened:
      root: 3 Time(s)


---------------------- pam_unix End -------------------------


--------------------- Connections (secure-log) Begin ------------------------


**Unmatched Entries**
xinetd[3334]: START: sgi_fam pid=3686 from=<no address>
xinetd[3334]: START: sgi_fam pid=3802 from=<no address>

---------------------- Connections (secure-log) End -------------------------


--------------------- SSHD Begin ------------------------


SSHD Killed: 2 Time(s)

SSHD Started: 2 Time(s)

Failed logins from these:
   adm/password from 203.231.200.4: 1 Time(s)
   amanda/password from 203.231.200.4: 1 Time(s)
   apache/password from 203.231.200.4: 2 Time(s)
   bin/password from 203.231.200.4: 1 Time(s)
   ftp/password from 203.231.200.4: 2 Time(s)
   games/password from 203.231.200.4: 2 Time(s)
   ident/password from 203.231.200.4: 1 Time(s)
   ldap/password from 203.231.200.4: 1 Time(s)
   lp/password from 203.231.200.4: 2 Time(s)
   mail/password from 203.231.200.4: 2 Time(s)
   mailman/password from 203.231.200.4: 1 Time(s)
   mysql/password from 203.231.200.4: 3 Time(s)
   news/password from 203.231.200.4: 3 Time(s)
   nobody/password from 203.231.200.4: 1 Time(s)
   operator/password from 203.231.200.4: 1 Time(s)
   postfix/password from 203.231.200.4: 1 Time(s)
   postgres/password from 203.231.200.4: 11 Time(s)
   postgres/password from 219.123.39.114: 1 Time(s)
   root/password from 203.231.200.4: 38 Time(s)
   root/password from 219.148.157.220: 3 Time(s)
   rpm/password from 203.231.200.4: 1 Time(s)
   squid/password from 203.231.200.4: 1 Time(s)
   sshd/password from 203.231.200.4: 2 Time(s)

**Unmatched Entries**
Illegal user fluffy from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user test from 203.231.200.4
Illegal user guest from 203.231.200.4
Illegal user webmaster from 203.231.200.4
Illegal user oracle from 203.231.200.4
Illegal user library from 203.231.200.4
Illegal user info from 203.231.200.4
Illegal user shell from 203.231.200.4
Illegal user linux from 203.231.200.4
Illegal user unix from 203.231.200.4
Illegal user webadmin from 203.231.200.4
Illegal user test from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user guest from 203.231.200.4
Illegal user master from 203.231.200.4
Illegal user network from 203.231.200.4
Illegal user word from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user test from 203.231.200.4
Illegal user test from 203.231.200.4
Illegal user webmaster from 203.231.200.4
Illegal user user from 203.231.200.4
Illegal user username from 203.231.200.4
Illegal user username from 203.231.200.4
Illegal user user from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user test from 203.231.200.4
Illegal user danny from 203.231.200.4
Illegal user sharon from 203.231.200.4
Illegal user aron from 203.231.200.4
Illegal user alex from 203.231.200.4
Illegal user brett from 203.231.200.4
Illegal user mike from 203.231.200.4
Illegal user alan from 203.231.200.4
Illegal user data from 203.231.200.4
Illegal user www-data from 203.231.200.4
Illegal user http from 203.231.200.4
Illegal user httpd from 203.231.200.4
Illegal user backup from 203.231.200.4
Illegal user info from 203.231.200.4
Illegal user shop from 203.231.200.4
Illegal user sales from 203.231.200.4
Illegal user web from 203.231.200.4
Illegal user www from 203.231.200.4
Illegal user wwwrun from 203.231.200.4
Illegal user adam from 203.231.200.4
Illegal user stephen from 203.231.200.4
Illegal user richard from 203.231.200.4
Illegal user george from 203.231.200.4
Illegal user michael from 203.231.200.4
Illegal user john from 203.231.200.4
Illegal user david from 203.231.200.4
Illegal user paul from 203.231.200.4
Illegal user angel from 203.231.200.4
Illegal user pgsql from 203.231.200.4
Illegal user pgsql from 203.231.200.4
Illegal user resin from 203.231.200.4
Illegal user mikael from 203.231.200.4
Illegal user mike from 203.231.200.4
Illegal user suva from 203.231.200.4
Illegal user webpop from 203.231.200.4
Illegal user technicom from 203.231.200.4
Illegal user susan from 203.231.200.4
Illegal user sunsun from 203.231.200.4
Illegal user sunny from 203.231.200.4
Illegal user steven from 203.231.200.4
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Illegal user search from 203.231.200.4
Illegal user sara from 203.231.200.4
Illegal user robert from 203.231.200.4
Illegal user richard from 203.231.200.4
Illegal user postmaster from 203.231.200.4
Illegal user party from 203.231.200.4
Illegal user michael from 203.231.200.4
Illegal user sgi from 203.231.200.4
Illegal user Aaliyah from 203.231.200.4
Illegal user Aaron from 203.231.200.4
Illegal user Aba from 203.231.200.4
Illegal user Abel from 203.231.200.4
Illegal user Jewel from 203.231.200.4
Illegal user users from 203.231.200.4
Illegal user admins from 203.231.200.4
Illegal user admins from 203.231.200.4
Illegal user Zmeu from 203.231.200.4
Illegal user michi from 203.231.200.4
Illegal user add from 203.231.200.4
Illegal user michael from 203.231.200.4
Illegal user adrian from 203.231.200.4
Illegal user Ionut from 203.231.200.4
Illegal user telnet from 203.231.200.4
Illegal user irc from 203.231.200.4
Illegal user bnc from 203.231.200.4
Illegal user psybnc from 203.231.200.4
Illegal user is from 203.231.200.4
Illegal user Exit from 203.231.200.4
Illegal user alina from 203.231.200.4
Illegal user andrei from 203.231.200.4
Illegal user stef from 203.231.200.4
Illegal user shell from 203.231.200.4
Illegal user print from 203.231.200.4
Illegal user get from 203.231.200.4
Illegal user hk from 203.231.200.4
Illegal user pl from 203.231.200.4
Illegal user Zmeu from 203.231.200.4
Illegal user sef from 203.231.200.4
Illegal user trib from 203.231.200.4
Illegal user haxor from 203.231.200.4
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Illegal user max from 203.231.200.4
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Illegal user bran from 203.231.200.4
Illegal user oper from 203.231.200.4
Illegal user cmd from 203.231.200.4
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Illegal user radu from 203.231.200.4
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Illegal user com from 203.231.200.4
Illegal user org from 203.231.200.4
Illegal user net from 203.231.200.4
Illegal user internet from 203.231.200.4
Illegal user cafe from 203.231.200.4
Illegal user station from 203.231.200.4
Illegal user play from 203.231.200.4
Illegal user open from 203.231.200.4
Illegal user dulap from 203.231.200.4
Illegal user if from 203.231.200.4
Illegal user uk from 203.231.200.4
Illegal user us from 203.231.200.4
Illegal user alinus from 203.231.200.4
Illegal user rumeno from 203.231.200.4
Illegal user it from 203.231.200.4
Illegal user samba from 203.231.200.4
Illegal user wwwrun from 203.231.200.4
Illegal user yahoo from 203.231.200.4
Illegal user kathi from 203.231.200.4
Illegal user at from 203.231.200.4
Illegal user cgi from 203.231.200.4
Illegal user kayten from 203.231.200.4
Illegal user unseen from 203.231.200.4
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Illegal user copy from 203.231.200.4
Illegal user help from 203.231.200.4
Illegal user flopy from 203.231.200.4
Illegal user nicole from 203.231.200.4
Illegal user send from 203.231.200.4
Illegal user kernel from 203.231.200.4
Illegal user address from 203.231.200.4
Illegal user not from 203.231.200.4
Illegal user to from 203.231.200.4
Illegal user password from 203.231.200.4
Illegal user denied from 203.231.200.4
Illegal user Access from 203.231.200.4
Illegal user cmd from 203.231.200.4
Illegal user char from 203.231.200.4
Illegal user ok from 203.231.200.4
Illegal user nickname from 203.231.200.4
Illegal user name from 203.231.200.4
Illegal user smecher from 203.231.200.4
Illegal user printul from 203.231.200.4
Illegal user ircop from 203.231.200.4
Illegal user work from 203.231.200.4
Illegal user pico from 203.231.200.4
Illegal user mcedit from 203.231.200.4
Illegal user edit from 203.231.200.4
Illegal user tgz from 203.231.200.4
Illegal user tar from 203.231.200.4
Illegal user zxvf from 203.231.200.4
Illegal user xvf from 203.231.200.4
Illegal user rk from 203.231.200.4
Illegal user rootkit from 203.231.200.4
Illegal user ferari from 203.231.200.4
Illegal user user from 203.231.200.4
Illegal user nologin from 203.231.200.4
Illegal user nice from 203.231.200.4
Illegal user bot from 203.231.200.4
Illegal user nothing from 203.231.200.4
Illegal user Where from 203.231.200.4
Illegal user text from 203.231.200.4
Illegal user passwd from 203.231.200.4
Illegal user angel from 203.231.200.4
Illegal user love from 203.231.200.4
Illegal user lost from 203.231.200.4
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Illegal user nina from 203.231.200.4
Illegal user file from 203.231.200.4
Illegal user demo from 203.231.200.4
Illegal user postmaster from 203.231.200.4
Illegal user demo from 203.231.200.4
Illegal user demouser from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user admin from 203.231.200.4
Illegal user demo from 219.123.39.114
Illegal user dan from 203.231.200.4
Illegal user electra from 203.231.200.4
Illegal user student from 203.231.200.4
Illegal user school from 203.231.200.4
Illegal user htt from 203.231.200.4
Illegal user hotdog from 203.231.200.4
succeeded
sshd -TERM succeeded
succeeded
sshd -TERM succeeded

---------------------- SSHD End -------------------------

gugong

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