Thank you. I noticed some anonymous user entries in mysql.user. I have executed the mysql_secure_installation and removed those users as well. On Thu, Jan 4, 2018 at 1:03 PM, Federico Razzoli wrote:

Check table mysql.user: you probably have the account '%'@localhost. It's a pattern, and rot@localhost matches. When running SHOW DATABASES you see only the databases which you have some permissions.

Federico

------------------------------ *Da:* Karthick Subramanian *A:* Maria Discuss *Inviato:* Giovedì 4 Gennaio 2018 6:01 *Oggetto:* [Maria-discuss] Is this normal behaviour?

All,

When I tried to connect in centos 7 mariadb 10.2.11 server using root user, by mistake I gave wrong user name, but it connected successfully. I am not sure why. When I check show databases, it didnt list all DBs, but when I connect with root again, I can see all valid Dbs.

Is this normal that even if I give wrong user, it authenticate into DB server from root.

[root@ipaddr ~]# mysql -u rot Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 22 Server version: 10.2.11-MariaDB MariaDB Server

Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | test | +--------------------+ 2 rows in set (0.00 sec)

MariaDB [(none)]> exit Bye [root@ipaddr~]# mysql -u root Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 24 Server version: 10.2.11-MariaDB MariaDB Server

Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | mydb01 | | information_schema | | mydb02 | | mysql | | performance_schema | | test | +--------------------+ 6 rows in set (0.00 sec)

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Am 04.01.2018 um 17:56 schrieb Guillaume Lefranc:

it might be because of socket authentication plugin:

https://mariadb.com/kb/en/library/authentication-plugin-unix-socket/

In other words if you use "root" unix account you don't need password.

then he would have seen the "mysql" database in "show databases"

Le jeu. 4 janv. 2018 à 09:20, Karthick Subramanian mailto:ksubramanian@paycommerce.com> a écrit :

Thank you.

I noticed some anonymous user entries in mysql.user. I have executed the mysql_secure_installation and removed those users as well.

On Thu, Jan 4, 2018 at 1:03 PM, Federico Razzoli mailto:federico_raz@yahoo.it> wrote:

Check table mysql.user: you probably have the account '%'@localhost. It's a pattern, and rot@localhost matches. When running SHOW DATABASES you see only the databases which you have some permissions.

Federico

------------------------------------------------------------------------ *Da:* Karthick Subramanian mailto:ksubramanian@paycommerce.com> *A:* Maria Discuss mailto:maria-discuss@lists.launchpad.net> *Inviato:* Giovedì 4 Gennaio 2018 6:01 *Oggetto:* [Maria-discuss] Is this normal behaviour?

All,

When I tried to connect in centos 7 mariadb 10.2.11 server using root user, by mistake I gave wrong user name, but it connected successfully. I am not sure why. When I check show databases, it didnt list all DBs, but when I connect with root again, I can see all valid Dbs.

Is this normal that even if I give wrong user, it authenticate into DB server from root.

[root@ipaddr ~]# mysql -u rot Welcome to the MariaDB monitor.  Commands end with ; or \g. Your MariaDB connection id is 22 Server version: 10.2.11-MariaDB MariaDB Server

Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> show databases; +--------------------+ | Database           | +--------------------+ | information_schema | | test               | +--------------------+ 2 rows in set (0.00 sec)

MariaDB [(none)]> exit Bye [root@ipaddr~]# mysql -u root Welcome to the MariaDB monitor.  Commands end with ; or \g. Your MariaDB connection id is 24 Server version: 10.2.11-MariaDB MariaDB Server

Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> show databases; +--------------------+ | Database           | +--------------------+ | mydb01     | | information_schema | | mydb02      | | mysql              | | performance_schema | | test               | +--------------------+ 6 rows in set (0.00 sec)