After migrating master server to a new server, I keep receiving this error on /var/log/mysql/error.log file. [Warning] Access denied for user 'ispcsrv9'@'server2.mydomain.com' (using password: YES) I search the internet but can't find any info about this user "ispcsrv9". This error occurs only in the new server which is server 1 before. Any Idea of this error?