MySQL error on Ubuntu 16.04

Question

Good day. Help please deal with the problem. There is a freshly installed MySQL 5.7 but I can not connect. It turns out such an error.

ERROR 2002 (HY000): Can't connect to MySQL server through socket '/var/run/mysqld/mysqld.sock' (2). Thanks in advance.

something like /etc/init.d/mysql start or how your services usually start up at your event.
Do not interfere even logs look somewhere in the area / var / log / mysql
There in logs in a config and in sockets everything is normal, it seems,
tell me how and what exactly you have “freshly installed”.
right in the text of the question by clicking edit below the text of the question.
@Ashot, "When I write mysql" - and you need to run sudo service mysql start and see what it says.
@PinkTux I write this way, says Failed to start mysql.service: Unit mysql.service is masked

cheops cheops 18.1k 9 gold signs 32 silver marks 120 bronze marks · Answer 1 · 2016-06-06T17:20:06

In 95% of cases, this error is displayed when the MySQL server is not running. Check whether this is so, you can use the command

 ps aux | grep mysqld

If the server is not running, you can start it in Ubuntu using the command

 sudo service mysql start

If this does not lead to a launch, you should look for the reason in the error logs /var/log/mysql/error.log and /var/log/mysql.err

Server does not start failed to start mysql.service: Unit mysql.service is masked

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