将slave（windows）连接到master（linux）时的连接超时

Question

我正在努力将我的 Windows 从站连接到 Jenkins 服务器 (Linux)，但没有运气。尝试了很多方法，解决了一些问题，最后，我遇到了连接超时。我看到一些提到类似问题的帖子没有回应。

异常日志

C:\jenkinsbin>java -jar slave.jar -jnlpUrl https://<jenkins.com>/comput
er/SFDC%20Node/slave-agent.jnlp -secret <****> -workDir "C:/jenkinsslavesfdc"
Feb 22, 2018 2:16:40 AM org.jenkinsci.remoting.engine.WorkDirManager initializeW
orkDir
INFO: Using C:\jenkinsslavesfdc\remoting as a remoting work directory
Both error and output logs will be printed to C:\jenkinsslavesfdc\remoting
Feb 22, 2018 2:16:41 AM hudson.remoting.jnlp.Main createEngine
INFO: Setting up slave: SFDC Node
Feb 22, 2018 2:16:41 AM hudson.remoting.jnlp.Main$CuiListener <init>
INFO: Jenkins agent is running in headless mode.
Feb 22, 2018 2:16:41 AM org.jenkinsci.remoting.engine.WorkDirManager initializeW
orkDir
INFO: Using C:\jenkinsslavesfdc\remoting as a remoting work directory
Feb 22, 2018 2:16:41 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among [https://<jenkins.com>/]
Feb 22, 2018 2:16:43 AM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver
resolve
INFO: Remoting server accepts the following protocols: [JNLP4-connect, JNLP-conn
ect, Ping, JNLP2-connect]
Feb 22, 2018 2:16:43 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Agent discovery successful
  Agent address: <jenkins.com>
  Agent port:    55202
  Identity:      80:e0:51:b6:65:64:7b:78:ce:ea:7d:c2:9d:27:5b:2a
Feb 22, 2018 2:16:43 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Feb 22, 2018 2:16:43 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to jenkins.com:55202
Feb 22, 2018 2:17:14 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to jenkins.com:55202 (retrying:2)
java.io.IOException: Failed to connect to jenkins.com:55202
        at org.jenkinsci.remoting.engine.JnlpAgentEndpoint.open(JnlpAgentEndpoin
t.java:243)
        at hudson.remoting.Engine.connect(Engine.java:667)
        at hudson.remoting.Engine.innerRun(Engine.java:528)
        at hudson.remoting.Engine.run(Engine.java:451)
Caused by: java.net.ConnectException: Connection timed out: connect
        at sun.nio.ch.Net.connect0(Native Method)
        at sun.nio.ch.Net.connect(Unknown Source)
        at sun.nio.ch.Net.connect(Unknown Source)
        at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
        at java.nio.channels.SocketChannel.open(Unknown Source)
        at org.jenkinsci.remoting.engine.JnlpAgentEndpoint.open(JnlpAgentEndpoin
t.java:204)
        ... 3 more

我的意见很少：

1. Slave 可以 ping jenkins.com
2. 在防火墙（入站和出站）规则下添加端口 55202 以允许从属设备中的连接。
3. 端口 55202 正在 master 中监听
4. 另外，既然我用windows作为我的slave，是否建议只使用java web start launch？
5. 在 slave 中尝试过 traceroute，但非常不一致。
6. master 中的 iptables 是否受限于任何不相同的子网？我猜主人没有响应，因此连接超时？

Answer 1

罗希特，

您能否检查这是否与您的情况相关？ Connecting Jenkins slave agent on windows failed with connection timeout

W.r.t. 2：如果您在同一个安全网络中工作，您可以完全关闭防火墙。