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#
#  ftp://vic.cc.purdue.edu/pub/tools/unix/lsof
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lsof -Pni
==========
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# netstat -ap
# netstat -apn
# netstat -n --inet
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[root@www /root]# netstat -v
==============================
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 www.linux-1u.net:ssh    166.90.172.11:1008      ESTABLISHED 
tcp        0      0 www.linux-1u.net:ssh    166.90.172.11:1013      ESTABLISHED 
tcp        0      0 www.linux-1u.net:ssh    166.90.172.11:1016      ESTABLISHED 
tcp        0      0 www.linux-1u.net:33531  usr45-dialup283.mi:3949 ESTABLISHED 
Active UNIX domain sockets (w/o servers)
Proto RefCnt Flags       Type       State         I-Node Path
unix  7      [ ]         DGRAM                    547332 /dev/log


[root@www /root]# /usr/sbin/lsof -V -i  :33531
=================================================
lsof: no pwd entry for UID 503
lsof: no pwd entry for UID 503
COMMAND   PID     USER   FD   TYPE DEVICE SIZE NODE NAME
lsof: no pwd entry for UID 503
fuct    20925      503    0u  IPv4 543319       TCP www.linux-1u.net:33531->usr45-dialup283.mix1.WillowSprings.cw.net:3949 (ESTABLISHED)
lsof: no pwd entry for UID 503
fuct    20925      503    3u  IPv4 447480       TCP *:33531 (LISTEN)

[root@www /root]# /usr/sbin/lsof -R -i tcp@www.linux-1u.net:33531
==================================================================
lsof: no pwd entry for UID 503
COMMAND   PID     USER   FD   TYPE DEVICE SIZE NODE NAME
lsof: no pwd entry for UID 503
fuct    20925      503    0u  IPv4 543319       TCP www.linux-1u.net:33531->usr45-dialup283.mix1.WillowSprings.cw.net:3949 (ESTABLISHED)

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