Cannot connect to Jenkins

Question

I installed Jenkins on my windows server and it works when accessing it from localhost:8080.

When I try to access it from outside the server like serveripaddress:8080 it's not accessible.

There is a inbound rule in firewall to named Jenkins for port 8080 for java.

running netstat:

Any idea what can I do in order to be able to access it from outside the server?

Browsing to localhost:8080/manage there is an alert: It appears that your reverse proxy set up is broken.

try doing a telnet to the ip and port and see if this is established? telnet IP 8080 Also, where is the server located? — Surendra Deshpande, Aug 19 '21 at 06:25
@SurendraDeshpande I checked using this https://www.yougetsignal.com/tools/open-ports/ and it says port 8080 is closed... — Offir, Aug 19 '21 at 06:26
Not on any cloud provider? What does local area mean? on prem data center? — Surendra Deshpande, Aug 19 '21 at 06:58
thats not how it works, when you are trying to access jenkins or any other service from your local machine using a public IP. You will have to do a port forwarding. Please refer to this https://stackoverflow.com/questions/5108483/access-localhost-from-the-internet and this should help you. — Surendra Deshpande, Aug 20 '21 at 06:01

score 1 · Answer 1 · answered Aug 18 '21 at 20:56

1

It's a bit unclear in your question whether you had set up a firewall rule on your local computer or the server.

Make sure you have opened inbound port 8080 on TCP on your servers firewall.

To make sure the firewall is not the issue, you could test by turning off the firewall completley, assuming the server is not exposed to the web.

answered Aug 18 '21 at 20:56

gulgummiand

I think it is a firewall related issue, but there is an inbound rule already for port 8080, I will attach a screen shot. – Offir Aug 19 '21 at 06:21

score 1 · Answer 2 · answered May 16 '23 at 15:18

1

I had the same problem.

Final solution: open port 8080 TCP for any program

If I tried to limit it to jenkins.exe or Jenkins service, it would not allow connections. Not sure why.

answered May 16 '23 at 15:18

David Balažic

The port in my server was open but not at the company that hosts our servers :-) – Offir May 17 '23 at 09:15

2 Answers2