How to grant remote access permissions to mysql se

Question

If I do SHOW GRANTS in my mysql database I get

GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' 
    IDENTIFIED BY PASSWORD 'some_characters' 
    WITH GRANT OPTION

If I am not mistaken, root@localhost means that user root can access the server only from localhost. How do I tell MySQL to grant root the permission to access this mysql server from every other machine (in the same network), too?

Answer 1

Two steps:

1. set up user with wildcard:
   create user 'root'@'%' identified by 'some_characters'; GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY PASSWORD 'some_characters' WITH GRANT OPTION

2. vim /etc/my.cnf
   add the following:
   bind-address=0.0.0.0

restart server, you should not have any problem connecting to it.

Answer 2

Those SQL grants the others are sharing do work. If you're still unable to access the database, it's possible that you just have a firewall restriction for the port. It depends on your server type (and any routers in between) as to how to open up the connection. Open TCP port 3306 inbound, and give it a similar access rule for external machines (all/subnet/single IP/etc.).

Answer 3

In my case I was trying to connect to a remote mysql server on cent OS. After going through a lot of solutions (granting all privileges, removing ip bindings,enabling networking) problem was still not getting solved.

As it turned out, while looking into various solutions,I came across iptables, which made me realize mysql port 3306 was not accepting connections.

Here is a small note on how I checked and resolved this issue.

• Checking if port is accepting connections:

telnet (mysql server ip) [portNo]

-Adding ip table rule to allow connections on the port:

iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT

-Would not recommend this for production environment, but if your iptables are not configured properly, adding the rules might not still solve the issue. In that case following should be done:

service iptables stop

Hope this helps.