ps -ef |grep telnet (telnet으로 접속 시도했으면 telnet로 검색)

[EVDO:/var/adm/syslog]ps -ef |grep tel
    root 12988   737  0 10:23:46 pts/tr    0:00 telnetd
  dcnnms  7157 12196  6 10:39:24 pts/1     0:00 telnet 203.236.37.4
                       -----
  dcnnms   503   486  0 10:00:42 pts/11    0:00 telnet 203.236.37.4
  dcnnms  3163  3151  0 10:01:17 pts/15    0:00 telnet 203.236.37.4
  dcnnms  2402  2392  0  Mar 19  pts/3     0:00 telnet 203.236.37.4
  dcnnms  7165  2315  5 10:39:24 pts/4     0:00 telnet 203.236.37.4
    root  8432   737  0 10:02:29 pts/tz    0:00 telnetd
  dcnnms   519   511  0 10:00:42 pts/14    0:00 telnet 203.236.37.4


여기에서 문제의 서버에 접속해있는 telnet 세션의 PPID를 검색하면

[EVDO:/var/adm/syslog]ps -ef |grep 12196
    root 15549  3583  1 10:41:34 pts/tF    0:00 grep 12196
  dcnnms 15460 12196  4 10:41:34 pts/9     0:00 telnet 203.236.37.4
  dcnnms 12275 12196  0  Mar 19  ?         0:00 /usr/bin/perl587 -w /disk01/dcnnms/PCN/bin/call_log_sync.pl
  dcnnms 12196 12193 114  Mar 19  ?        89:41 /usr/bin/perl587 -w /disk01/dcnnms/PCN/bin/call_log_sync.pl

PPID 12196의 Process가 접속해 있다는걸 뜻함
이 프로세스를 분석해보면.... 문제 해결...