Re: Cannot open TCP port for JNLP agents

After search about CentOS firewall, I have discovered that there is a firewall-cmd, and through that I was able to add port 8090 and now its communicating. Since I dont have a lot of knowledge about it I will leave here how to accomplish that:

Re: Cannot open TCP port for JNLP agents

I have updated jenkins to 2.138.1 and seems like they have changed the behaviour of jenkins agent to be deployed, now I have a more conclusive error message, but without resolving the problem: [image: Screenshot_6.jpg] sexta-feira, 14 de Setembro de 2018 às 13:09:24 UTC+1, marafado88

Re: Cannot open TCP port for JNLP agents

Changing port number for JNLP agents in jenkins webservice, also changes changes the port in jenkins OS firewall, but still no success. Sniffing that new port shows a closed port. I have used 58090 port. sexta-feira, 14 de Setembro de 2018 às 10:26:02 UTC+1, marafado88 escreveu: > > I am

Re: Cannot open TCP port for JNLP agents

Regarding this issue I was not understanding the tcp6 who means IPv6 for SSH, jenkins web config and the JNLP Master, but after reading about dual mode IPv6 sockets, I notice that those handle IPv4 connections using IPv4-Mapped IPv6 Addresses . And

Re: Cannot open TCP port for JNLP agents

I am running the same version of Jenkins but in CentOS. There is no registe in Jenkins logs of any received connection from the remote agent. Did you had to add that port for JNLP agents in windows server firewall in you case? quinta-feira, 13 de Setembro de 2018 às 21:21:55 UTC+1, James

Re: Cannot open TCP port for JNLP agents

I am running the same Jenkins version but in CentOS. In Jenkins System Log I have lots of: [image: Screenshot_5.jpg] But there is no register of any attempt of connection from the remote agent in that windows. quinta-feira, 13 de Setembro de 2018 às 21:21:55 UTC+1, James Fairweather

Cannot open TCP port for JNLP agents

Hello, I am trying to connect one windows agent with a jenkins server, where both are in the same network, and that windows is at reach of jenkins server, but still I am getting this error: [image: Screenshot_3.jpg] This windows can ping to jenkins.XXX.local without problem, but seems like