ubuntu 16.04
openssh-server is also installed, but the port is changed to 23, and then the connection cannot be connected. The following error is reported. Have you encountered this situation
Connecting to 192.168.10.12:23...
Connection established.
To escape to local shell, press "Ctrl+Alt+]".
Connection closing...Socket close.
Connection closed by foreign host.
Disconnected from remote host(192.168.10.12) at 14:53:13.
Type `help" to learn how to use Xshell prompt.
under what circumstances can I connect? Can I connect before the
port is changed to 23?
has the server-side ssh port been changed to 23?
is the server-side ssh service started? ( service ssh status )
is port 23 on the server? ( ss-tlnp )
does the server have a firewall to block access to port 23? ( iptables-nL )
through To escape to local shell, press' Ctrl+Alt+]'. know that the service corresponding to port 23 of your server is telnet, and not ssh.
solution:
/ etc/init.d/openbsd-inetd stop ) now rarely use this service to transfer data, because it is plaintext transmission, it is not secure), change the ssh service port to 23 (modify the configuration file in / etc/ssh/sshd_config ), and then restart the ssh service ( service ssh restart ) what do you want to do with subsystem on windows 10? Apart from curiosity, I can't think of any other reason.
if you want to practice ubuntu, you might as well use a virtual machine (VirtualBox, etc.).
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