Default host should be 127.0.0.1

[fmonts]

This is not a big issue, anyway if I follow the given advice to set skip_name_resolve=1, the tool itself won't work anymore unless I write every time --host=127.0.0.1

[jmrenouard]

Tell me if it is better :)

[fmonts]

Still not working: (same password used)

# perl mysqltuner.pl
 >>  MySQLTuner 1.7.1 - Major Hayden <major@mhtx.net>
 >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/
 >>  Run with '--help' for additional options and output filtering

[--] Skipped version check for MySQLTuner script
Please enter your MySQL administrative login: root
Please enter your MySQL administrative password: [!!] Attempted to use login credentials, but they were invalid.

# perl mysqltuner.pl --host=127.0.0.1
 >>  MySQLTuner 1.7.1 - Major Hayden <major@mhtx.net>
 >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/
 >>  Run with '--help' for additional options and output filtering

[--] Skipped version check for MySQLTuner script
[--] Performing tests on 127.0.0.1:3306
Please enter your MySQL administrative login: root
Please enter your MySQL administrative password: [OK] Currently running supported MySQL version 5.7.17-13

[jmrenouard]

All is documented in README.md.

We prefer managing credntials inside .my.cnf