What does : in netstat output stands for?

Posted by chello on Super User See other posts from Super User or by chello
Published on 2013-10-23T13:06:50Z Indexed on 2013/10/23 15:58 UTC
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networking

While executing the command /usr/sbin/lsof -l -i -P -n under root user, I am getting this output.

COMMAND     PID     USER   FD   TYPE    DEVICE SIZE/OFF   NODE NAME
...
httpd      9164       70    3u  IPv4 0x2f70270      0t0    TCP 127.0.0.1:9010 (LISTEN)
httpd      9164       70    4u  IPv6 0x25af4bc      0t0    TCP *:80 (LISTEN)
httpd      9164       70    5u  IPv4 0x3149e64      0t0    TCP *:* (CLOSED)
httpd      9180       70    3u  IPv4 0x2f70270      0t0    TCP 127.0.0.1:9010 (LISTEN)
httpd      9180       70    4u  IPv6 0x25af4bc      0t0    TCP *:80 (LISTEN)
httpd      9180       70    5u  IPv4 0x3149e64      0t0    TCP *:* (CLOSED)

Please let me know what does *:* stands for? I am interested to know both the ipaddress and port fields. Also what does (CLOSED) mean here?

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