MYSQL ERROR 2049 (HY000): Connection using old (pre-4.1.1) authentication protocol ref used (client option 'secure_auth' enabled)

Question

when I tried to restore all database dump which is in 5.0 version to 5.6 version, it got restored and after that when I tried to reconnect, am getting the following error

Answer 1

I've got same problem in Centos 7 with MySQL. If i try to connect by mysql client:

ERROR 2049 (HY000): Connection using old (pre-4.1.1) authentication protocol refused (client option 'secure_auth' enabled)

Bu in my case if I specify:

--skip-secure-auth

it cause error message:

ERROR 1275 (HY000): Server is running in --secure-auth mode, but 'root'@'localhost' has a password in the old format; please change the password to the new format

It work only when i specify:

in /etc/my.cnf

[mysqld]
...
secure_auth=false

and then restart mysqld