I don't understand this java error message when trying to backup a configuration

[slimix00]

Hello,

Can you give me a hand please ?

I get this message when trying to backup a configuration manually of automatically:

Task backup, node 28: can't establish SSH connection.
Exception: JSchException. Message: java.net.ConnectException: Connexion terminée par expiration du délai d'attente (Connection timed out)
Stack trace:
com.jcraft.jsch.Util.createSocket(Util.java:394)
com.jcraft.jsch.Session.connect(Session.java:215)
ssh.GeneralSsh.performJobs(GeneralSsh.java:385)
ssh.GeneralSsh.execute(GeneralSsh.java:105)
core.WorkerSsh.executeJobs(WorkerSsh.java:74)
abstractions.AbstractWorker.call(AbstractWorker.java:89)
abstractions.AbstractWorker.call(AbstractWorker.java:48)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)

---

[slimix00]

Hello again,

Good news :)

I solved the issue by restarting the sshd deamon with the following command : systemctl restart sshd
PS: I'm using CENTOS

Good luck to everyone.

Kind regards,