SSH can not connect

Discussion in 'ISPConfig 3 Priority Support' started by Tom John, Jul 26, 2019.

  1. Tom John

    Tom John Active Member HowtoForge Supporter

    Hello guys,
    I use Ubuntu 18.04 with ISPConfig 3.14
    Suddenly i have problems to connect server A with SSH to server B
    Other server can connect to the server B with SSH without problem, only server A can not connect.
    Server A can connect to other server via SSH without problem, i only have problems to connect from server A to B.
    The ping from server A gives the IP of server B.

    Someone has an idea how to solve the problem?

    thanks in advance for your kind help
     
    Tom John, Jul 26, 2019
    #1
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    Check the fail2ban.log on server B. It might be that a service on server A tries to connect with wrong credentials so that the Ip of server A gets blocked on server B due to login failures.
     
    till, Jul 26, 2019
    #2
  3. Tom John

    Tom John Active Member HowtoForge Supporter

    thanks for your kind help, yes the ip was blocked due to login failures.
    Like always your help us a lot here, thanks for that
     
    Tom John, Jul 26, 2019
    #3
    till likes this.

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