How to open port 80 on windows server 2003

Unfortunately this only works with PowerShell 4. PS: Note, these days there are some claims on the twittersphere that hint that this answer could be improved by mentioning "Test-Connection" from PowerShell Core, or the shortcut "tnc". Even though you can upgrade your version of PowerShell by installing the Windows Management Framework 4.

On a Windows machine you can use PortQry from Microsoft to check whether an application is already listening on a specific port using the following command:. If telnet is not available, download PuTTY. It is a far superior Telnet, SSH, etc. Do you want a tool for doing it? Otherwise, you need some other server to call you back to see if a port is open Another option is tcping.

PsPing from Sysinternals is also very good. You can ping a server and a port and it will tell you the state of the port. There is a command-line utility and a UI for it.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How do I determine if a port is open on a Windows server? Asked 13 years, 2 months ago. Active 2 years ago. Viewed 2. Improve this question. Peter Mortensen Jason Jason See also serverfault. Add a comment. Active Oldest Votes. Assuming that it's a TCP rather than UDP port that you're trying to use: On the server itself, use netstat -an to check to see which ports are listening.

On that latter test, then in general: connection refused means that nothing is running on that port accepted means that something is running on that port timeout means that a firewall is blocking access On Windows 7 or Windows Vista the default option 'telnet' is not recognized as an internal or external command, operable program or batch file. Improve this answer.

Alnitak Alnitak k 70 70 gold badges silver badges bronze badges. Note: TCP Port 80 is open for outgoing communications by default in most firewall software. So you should not have to open any ports in the firewall software running on Rhino workstations. If you are using an alternate firewall, please consult their documentation. Note: Do not create a Program rule — you must create a Port rule. Select which protocol this rule will apply to TCP , select Specific local ports , type port number 80 , and then click Next.

Select when this rule applies check all of them for the port to always stay open and then click Next. All rights reserved. Covered by US Patent. Come for the solution, stay for everything else. Welcome to our community! I need to open port 80 on a Windows Server I can't figure out what it is being blocked. I've disabled the virus protection temporarily. I can't figure out where in the router to enable port I used the following link to check the port and it says that it's still blocked.

I need to be able to use this port for some product authentication software called "ndchealthvar". Does anyone have any ideas? Dave Baldwin.