My port 139 is wide open!

[Brandon Taylor]

I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

 

[Chuck [MVP]]

I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

Brandon,

Is the computer directly connected to the Internet? Get a NAT router. If you
can afford a computer, you can afford a router.
<http://nitecruzr.blogspot.com/2006/01/proper-network-design.html#Router>
http://nitecruzr.blogspot.com/2006/01/proper-network-design.html#Router

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.

 

[Chuck [MVP]]

I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

Brandon,

Is the computer directly connected to the Internet? Get a NAT router. If you
can afford a computer, you can afford a router.
<http://nitecruzr.blogspot.com/2006/01/proper-network-design.html#Router>
http://nitecruzr.blogspot.com/2006/01/proper-network-design.html#Router

For a short term solution, go to the Network and Sharing Center, and set the NLT
to Public.
<http://nitecruzr.blogspot.com/2006/12/windows-xp-and-vista-on-lan-together.html#VistaServer>
http://nitecruzr.blogspot.com/2006/12/windows-xp-and-vista-on-lan-together.html#VistaServer

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.

 

[Robert L [MVP - Networking]]

You can use PULIST from the Windows Resource Kit to find which process is using a specified port. This show to may help.

How to find open ports on a computerYou can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display ...
www.howtonetworking.com/command/openport1.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

 

[Brandon Taylor]

I issued this command:

netstat -an | find /i "139"

and it returned the following line:

TCP 192.168.0.2:139 0.0.0.0:0 LISTENING

Turns out that 192.168.0.2 is my own IP address, and it is listening through Port 139! From what I can gather, the only way to protect my computer from any menace trying to attack it through Port 139 is to shut down the Internet connection. Am I correct... or is there another way?

-- B.D.T.
You can use PULIST from the Windows Resource Kit to find which process is using a specified port. This show to may help.

How to find open ports on a computer You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display ...
www.howtonetworking.com/command/openport1.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

 

[Robert L [MVP - Networking]]

As the link says, using PULIST will give you the processor and PID.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I issued this command:

netstat -an | find /i "139"

and it returned the following line:

TCP 192.168.0.2:139 0.0.0.0:0 LISTENING

Turns out that 192.168.0.2 is my own IP address, and it is listening through Port 139! From what I can gather, the only way to protect my computer from any menace trying to attack it through Port 139 is to shut down the Internet connection. Am I correct... or is there another way?

-- B.D.T.
You can use PULIST from the Windows Resource Kit to find which process is using a specified port. This show to may help.

How to find open ports on a computer You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display ...
www.howtonetworking.com/command/openport1.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

 

[Brandon Taylor]

The command prompt does not recognize PULIST as a valid command. What do I do next?

-- B.D.T.
As the link says, using PULIST will give you the processor and PID.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I issued this command:

netstat -an | find /i "139"

and it returned the following line:

TCP 192.168.0.2:139 0.0.0.0:0 LISTENING

Turns out that 192.168.0.2 is my own IP address, and it is listening through Port 139! From what I can gather, the only way to protect my computer from any menace trying to attack it through Port 139 is to shut down the Internet connection. Am I correct... or is there another way?

-- B.D.T.
You can use PULIST from the Windows Resource Kit to find which process is using a specified port. This show to may help.

How to find open ports on a computer You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display ...
www.howtonetworking.com/command/openport1.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

 

[Robert L [MVP - Networking]]

You can download pulist from this link: http://www.chicagotech.net/Tools/pulist.zip

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
The command prompt does not recognize PULIST as a valid command. What do I do next?

-- B.D.T.
As the link says, using PULIST will give you the processor and PID.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I issued this command:

netstat -an | find /i "139"

and it returned the following line:

TCP 192.168.0.2:139 0.0.0.0:0 LISTENING

Turns out that 192.168.0.2 is my own IP address, and it is listening through Port 139! From what I can gather, the only way to protect my computer from any menace trying to attack it through Port 139 is to shut down the Internet connection. Am I correct... or is there another way?

-- B.D.T.
You can use PULIST from the Windows Resource Kit to find which process is using a specified port. This show to may help.

How to find open ports on a computer You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display ...
www.howtonetworking.com/command/openport1.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor

 

[Brandon Taylor]

PULIST says that port 139 is not being used by any processes. What is my next step?

-- B.D.T.
You can download pulist from this link: http://www.chicagotech.net/Tools/pulist.zip

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
The command prompt does not recognize PULIST as a valid command. What do I do next?

-- B.D.T.
As the link says, using PULIST will give you the processor and PID.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I issued this command:

netstat -an | find /i "139"

and it returned the following line:

TCP 192.168.0.2:139 0.0.0.0:0 LISTENING

Turns out that 192.168.0.2 is my own IP address, and it is listening through Port 139! From what I can gather, the only way to protect my computer from any menace trying to attack it through Port 139 is to shut down the Internet connection. Am I correct... or is there another way?

-- B.D.T.
You can use PULIST from the Windows Resource Kit to find which process is using a specified port. This show to may help.

How to find open ports on a computer You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display ...
www.howtonetworking.com/command/openport1.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I just ran the Shields UP! test (at www.grc.com) and it told me that my port
139 was wide open. How in Windows Vista do I close that port?

Brandon Taylor