IIS 7 and Above
TCP Port Sharing 8443
Last post Jul 11, 2019 03:03 PM by bhammerhead
Jun 06, 2019 08:09 PM|bhammerhead|LINK
Hello IIS.NET forum,
A third party vendor set up port 8080 for TCP Port Sharing on one of our application servers. This works fine but I would like to move it from port 8080 to port 8443.
Is this just as simple as adding a NET.TCP binding for 844:* and restarting the Web service? I have the firewall rules in place, too. Please advise,
Jun 07, 2019 03:03 AM|Jalpa Panchal|LINK
You need to change binding in iis using:
Open Internet Information Services (IIS) Manager.
Select the Web site that you wish to configure.
In the Action pane, click Bindings.
Click Add to add a new site binding or click Edit to change an existing binding.
Click OK to apply the changes.
Restart service and IIS.
Also, change the configuration of the firewall.
Jun 07, 2019 08:03 PM|bhammerhead|LINK
I tried what I thought would help. I made the changes, restarted the services, and double-checked the firewall settings. Here is what I added to the bindings:
Binding information: 844:*
Please let me know if there is something I am leaving out.
Jun 10, 2019 03:04 AM|Jalpa Panchal|LINK
Yes, your binding re correct. also set the rule for this post binding.
Jun 11, 2019 05:58 PM|bhammerhead|LINK
thank you Jalpa.
Can you give me more detail when you state "also set the rule for this post binding."? What post binding rule do I need to apply? Can you give me an example?
Jun 12, 2019 07:11 AM|Jalpa Panchal|LINK
I suggesting you set firewall setting for this new port number also.
Jun 12, 2019 07:54 PM|bhammerhead|LINK
I checked and all seems to be set up properly but I still can't connect through that port. I will keep searching. Let me know if you have additional suggestions. Hopefully I will have a status update soon.
Jun 17, 2019 06:42 AM|Jalpa Panchal|LINK
Try to run netstat -aoq to find out if the port number is established or not.
Jun 17, 2019 02:34 PM|bhammerhead|LINK
I ran that and exported to a text file so I could read all the results. I didn't see port 8080 or port 8443. But I did see this entry:
Is this reflecting the net.tcp "808:*" binding in IIS? Please confirm. If so then I need to turn on port 8443 because I don't see any ports listening described as "TCP [::]:844".
Jun 20, 2019 09:33 AM|Jalpa Panchal|LINK
Could you share your iis site bindings snapshot?
Jun 25, 2019 06:22 PM|bhammerhead|LINK
I don't seem to be able to paste a screenshot. I can try to type up the rows and columns:
Type Host Name Port IP Address Binding
https: 443 127.0.0.1
https: 443 *
http: 80 127.0.0.1
http: 80 *
Let me know if this is what you were asking about
Jun 27, 2019 08:31 AM|Jalpa Panchal|LINK
Try to remove tcp binding with port 808 and again run command and check the result.
Jul 03, 2019 06:13 PM|bhammerhead|LINK
I made those changes and restarted IIS - but did not see any improvement. I will keep searching. Open to more ideas. I am double-checking the port.
Jul 04, 2019 02:22 AM|Jalpa Panchal|LINK
Did you add a firewall rule for port 844?
Jul 09, 2019 02:14 PM|bhammerhead|LINK
Do I need that since port 8443 is the port we want to use? I thought configuring "844:*" would cover port 8443? I could try and test.
Jul 11, 2019 03:03 PM|bhammerhead|LINK
Update: I watched the packets on my firewall and tested connectivity through HTTPS. The port traffic is allowed through - then I get a message stating:
"This site can't be reached. "
" "my site" refused to connect"
Checking the connection"
So at this point it doesn't appear to be a firewall rule blocking it. Something needs to be configured on server or in IIS. Please let me know if you have any suggestions.