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Operating Systems Linux open port
# 1  
Old 08-26-2007
Question open port
How can I open a port on linux machine ???
# 2  
Old 08-26-2007
If you mean listening on port:

Code:
nc -lp <port>

This User Gave Thanks to radoulov For This Post:
vectrum
# 3  
Old 08-26-2007
ok thanks radoulov....what if I want to close a port??
# 4  
Old 08-26-2007
Quote:
Originally Posted by mm00123
ok thanks radoulov....what if I want to close a port??
close the application that opens the port
# 5  
Old 08-27-2007
Question
dears,

I tried to use nc -l -p 21 -e /program

but this well success for only one time connection after that the nc will be closed???? how can I make the nc running continously ...I need to make the listening for the specified port continous?????

any help????
# 6  
Old 08-27-2007
Code:
while :;do
    nc -vlp 21 -e /program
done>your.log 2>your_error.log

Make a script and run in nohup.
Last edited by radoulov; 08-27-2007 at 04:52 AM.. Reason: correction/addition
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