SSH can not connect

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

  1. Tom John

    Tom John 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
  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.
  3. Tom John

    Tom John 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
    till likes this.

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