List all TCP opened ports on localhost in LISTEN mode

netstat -nptl
Alternative of OJM snippet : This one show the IP too, where ports bind. It's very important, because if there's only 127.0.0.1 instead of 0.0.0.0, connections from internet are rejected.

3
By: sputnick
2009-12-11 10:23:43

8 Alternatives + Submit Alt

  • This command is more portable than it's cousin netstat. It works well on all the BSDs, GNU/Linux, AIX and Mac OS X. You won't find lsof by default on Solaris or HPUX by default, but packages exist around the web for installation, if needed, and the command works as shown. This is the most portable command I can find that lists listening ports and their associated pid. Show Sample Output


    27
    lsof -Pan -i tcp -i udp
    atoponce · 2010-06-07 15:22:44 0
  • 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


    7
    netstat -plnt
    DopeGhoti · 2011-09-30 19:56:32 0
  • 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


    7
    netstat -plnt
    DopeGhoti · 2011-09-30 19:56:32 0

  • 4
    nmap -p 1-65535 --open localhost
    solarislackware · 2009-12-10 20:03:37 0

  • 3
    sudo lsof -P -i -n -sTCP:LISTEN
    OJM · 2009-12-11 07:16:54 0

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