错误2003（HY000）：无法连接到“ 10.0.0.5”上的MySQL服务器（111）

Question

I have two ubuntu VMs in azure. Both are Ubuntu 17.10 On is for database and the other for web. The database has mysql 5.7 set up. I have been trying to connect from the web server to db server.

I tried

mysql -h 10.0.0.5

and got

ERROR 2003 (HY000): Can't connect to MySQL server on '10.0.0.5' (111)

I have also tried running the same line from db server. I see the same output. However it does work like this within the db server:

mysql -uroot

And it also works like this:

mysql -h localhost

I have looked at several online solutions about this issue. Mostly the solution is to uncomment bind-address line my.cnf. However I don't find this line. I have tried adding the line bind-address = 10.0.0.5 , but that crashes the mysql.

Note that I am able to ping from web server to db server.

Answer 1

Try following the steps mentioned in the answer to this question

• set bind-address on /etc/mysql/mysql.conf.d/mysqld.cnf
• restart mysql server
• check if it listens on the defined address
• create a user for the remote connection
• grant the privilages
• flush privilages