The SSH connection is denied after the Linux server replacement IP is resolved.

The SSH connection is denied after the Linux server replacement IP is resolved.

Fixed an SSH login "ssh:connect to host XXX port 22:connection refused" error after replacing Linux server IP

Due to the previous server's sshd service has been normal, but after the replacement of IP through the putty to log in to the "connection is rejected" exception

First, restart the SSHD service to see if the login is normal, if there are exceptions to the following steps

Netstat sshd

Second, the correct IP address in the. ssh/known_hosts file is modified

1, vi ~/.ssh/known_hosts

2. Replace all old IP addresses with the new IP address

:%s/old ip/New ip/g

The SSH connection is denied after the Linux server replacement IP is resolved.