Lists all listening ports together with the PID of the associated process

netstat -tlnp
The PID will only be printed if you're holding a root equivalent ID.

By: fulat2k
2009-02-15 14:20:25

5 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

    lsof -Pan -i tcp -i udp
    atoponce · 2010-06-07 15:22:44 1
  • 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

    netstat -plnt
    DopeGhoti · 2011-09-30 19:56:32 0
  • Alternative of OJM snippet : This one show the IP too, where ports bind. It's very important, because if there's only instead of, connections from internet are rejected.

    netstat -nptl
    sputnick · 2009-12-11 10:23:43 1
  • Lists all opened sockets (not only listeners), no DNS resolution (so it's fast), the process id and the user holding the socket. Previous samples were limiting to TCP too, this also lists UDP listeners. Show Sample Output

    netstat -anpe
    anarcat · 2011-12-06 18:27:09 0
  • Shows you all listening tcp/udp ports, and what program has them open(depending on rights)

    netstat -tunlp
    ender_x · 2010-06-07 13:26:05 0

What Others Think

BSD equivalent: sockstat -l4 (that's a small L)
lme · 671 weeks ago
for german users there is a simple way to remember a similar command: netstat -tulpen (tulpen = tulips in german)
Hollow · 668 weeks and 3 days ago
I prefer: netstat -paten also easy to remember :-) and gives not only listening ports, but also running processes and their owning users p.s. mnemonic of course is netstat -patent but 2nd t is simply redundant
vleolml · 663 weeks and 4 days ago
Following will also show UDP sockets: netstat -tulnp
realist · 649 weeks and 3 days ago
lsof -Pan -i tcp -i udp
solarislackware · 634 weeks and 1 day ago
not for OS-X :(
ab · 622 weeks and 3 days ago
In OS-X I am using a little script:
nuxlli · 620 weeks ago
the switches in this command are gnu-specific. likely, the gnu netstat won't be running on any other operating systems than linux-based ones. a better utility that is more portable is lsof, as @solarislackware pointed out.
atoponce · 607 weeks and 4 days ago
Best to run: # netstat -plntu This way you see UDP conns too.
kernel01 · 441 weeks and 4 days ago

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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