Port 21 (FTP) Open. How to close.

[Guest Maj.BPudgeman]

While testing my security at GRC.com (ShieldsUp) I find that port 21 shows

open. I'd like to close it but can't figure out how. I have the firewall on

and have tried both settings on the block all access option. I also have a

Linksys router with firewall turned on.

 

I also tried changing the registry entry for ....DisableStatefulFTP with no

luck.

 

Any thoughts would be appreciated.

 

BTW My Vista is 64bit, Ultimate.

 

Thanks

[Guest Jason Gurtz]

Re: Port 21 (FTP) Open. How to close.

 

Maj.BPudgeman wrote:

> While testing my security at GRC.com (ShieldsUp) I find that port 21 shows

> open. I'd like to close it but can't figure out how. I have the firewall on

> and have tried both settings on the block all access option. I also have a

> Linksys router with firewall turned on.

 

I believe that GRC service checks external ports which are open. This

means check the settings on your router (maybe a static port mapping/DMZ

setting?).

 

"netstat -ano" at the cmd prompt will tell you the local ports that are

open; look for ports in the "Listening" state. -o option give PID of

prog that has the port open. You can add the PID column in task manager

to see.

 

~JasonG

 

--

[Guest Jud Hendrix]

Re: Port 21 (FTP) Open. How to close.

 

On Fri, 25 Jan 2008 10:05:06 -0800, Maj.BPudgeman

<Maj.BPudgeman@discussions.microsoft.com> wrote:

>While testing my security at GRC.com (ShieldsUp) I find that port 21 shows

>open. I'd like to close it but can't figure out how.

 

It's the FTP-port. Not sure if it is such a good idea to close it.

 

jud

[Guest Maj.BPudgeman]

Re: Port 21 (FTP) Open. How to close.

 

Thanks. You put me on the right path to a solution. My new router has a

storage link and apparently it uses port 21 for attached storage devices. I

was able to block it and go back to stealth mode.

 

Perhaps I'll have a problem if I do attach a drive, but I'll cross that

bridge when it hatches.

 

Anyone interested the setting is in the router management Storage/FTP

Server/FTP Server = disable.

 

Thanks agin.

 

"Jason Gurtz" wrote:

> Maj.BPudgeman wrote:

> > While testing my security at GRC.com (ShieldsUp) I find that port 21 shows

> > open. I'd like to close it but can't figure out how. I have the firewall on

> > and have tried both settings on the block all access option. I also have a

> > Linksys router with firewall turned on.

>

> I believe that GRC service checks external ports which are open. This

> means check the settings on your router (maybe a static port mapping/DMZ

> setting?).

>

> "netstat -ano" at the cmd prompt will tell you the local ports that are

> open; look for ports in the "Listening" state. -o option give PID of

> prog that has the port open. You can add the PID column in task manager

> to see.

>

> ~JasonG

>

> --

>