Port 21

[kalaap]

<SPAN class=postbody>how do i find out what application is using port 21? i tried to start up bulletproof's ftp server but it said that another app was already using port 21, except i had nothing else running. I thought it might be one of winxp pro's services but i can't figure out which is using what port. i have norton personal firewall also but it doesn't tell me what app is using port 21. Can someone help me with this problem. Thank you.

ep</SPAN>

 

[gunrunnerjohn]

Is Window's FTP server running in services?

 

[DannyBoy]

go into command prompt and type "netstat -a"

You can find out a basic idea of what could be using it from there.

Double check all your services in task manager too.

 

[martind1]

most likely it is another ftp server running.

you can try telnetting to that port (telnet 127.0.0.1 21) and see if there is a welcome line (Microsoft ftp ...etc)

or you can try using a port scanner to see what it comes up with

 

[ToxicWaste]

or you could try to ftp to it!?! and see if it responds. But, it is most likely just m$'s own ftp service running. For Win2k and XP Go to Setup > Control Panels > Administrative Tools > Services. Locate the ftp service shut it off and disable it from starting again.

 

[martind1]

Originally posted by: ToxicWaste
or you could try to ftp to it!?! and see if it responds.

which is exactly what i said ...

 

[kalaap]

i don't have windows IIS installed, which i think installs windows ftp service, among others. The ftp server won't let me connect to any port i assign it to...i went into norton personal firewall and gave it access to all the ports but it still won't work. I ran "netstat -a" and also "netstat -nr" but it didn't list anything on port 21. I also don't have winxp's firewall running so i know thats not a problem. i'm at a loss...any help would be appreciated. Thank you.

-k