check open ports (both ipv4 and ipv6)

lsof -Pn | grep LISTEN

4
By: pykler
2011-09-29 18:21:51

5 Alternatives + Submit Alt

  • Tested in Linux and OSX Show Sample Output


    18
    lsof -Pni4 | grep LISTEN
    evenme · 2009-08-21 22:51:41 7
  • While `lsof` will work, why not use the tool designed explicitly for this job? (If not run as root, you will only see the names of PID you own) Show Sample Output


    8
    netstat -plnt
    DopeGhoti · 2011-09-30 19:56:32 0
  • Check open TCP and UDP ports Show Sample Output


    1
    netstat -plntu
    bolthorn0 · 2011-10-01 12:16:38 0
  • This option selects the listing of all Internet and x.25 (HP-UX) network files. Show Sample Output


    -1
    lsof -i
    shsingh · 2011-10-03 02:06:30 0
  • This option is much faster, as it checks only network nodes. Show Sample Output


    -2
    lsof -Pi | grep LISTEN
    5partan · 2011-10-03 12:50:18 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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