1. The server console configures port 3306 in the security group
2. Enter /etc/ssh/sshd_config and add the following code at the bottom
KexAlgorithms diffie-hellman-group1-sha1,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
Ciphers 3des-cbc,blowfish-cbc,aes128-cbc,aes128-ctr,aes256-ctr
then execute
ssh-keygen -A
Finally restart SSH
service ssh restart
3. Navicat configuration
References:
https://www.cnblogs.com/yidiandhappy/p/7404674.html
https://blog.csdn.net/liuhailiuhai12/article/details/64124637