Developers, Developers, Developers! » networking

MySQL Connecting Remotely

Maksim Sorokin — Tue, 10 Aug 2010 15:08:19 +0000

Information on the internet about remotely to the MySQL database is quite confusing. All over the place you may find information about bind-address configuraiton in the my.ini file. Even I wrote about it recentlyHowever, after setting bind-address option it will no longer be possible to connect to MySQL database from localhost.

The guys from freenode IRC server #mysql channel clarified the situation:

remove bind-address= and skip-networking from my.cnf and grant permission to the external 'user'@'host' and remove any firewall rules blocking port 3306 and make sure no overrides on the mysqld commandline. See http://hashmysql.org/index.php?title=Remote_Clients_Cannot_Connect
bind-address is exclusive, not inclusive, it limits mysql server to what interface to listen on for incoming connections

Networking Issues in VMware Player Being Offline and Online

Maksim Sorokin — Fri, 23 Jul 2010 14:02:18 +0000

You may experience strange problems (at least they seem to be at the first glance) with networking on your machine which is running in VMware Player.

For instance, your virtual machine has a host name "albert". When your main (physical) machine is online, "albert" can be pinged as usual. But when you are coming offline, "albert" can no longer be pinged. The explanation is simple -- there is no local network between your physical machine and "albert".
In order to enable such a local network, you would need to go to menu "Virtual Machine->Virtual Machine Settings". Switch to "Network Adapter" in the left frame and choose "Host-only" in the right frame. In this case it does not matter if your main physical machine is online or offline -- you will be able to ping "albert" and access internet from it.

Accessing MySQL Remotely

Maksim Sorokin — Mon, 19 Jul 2010 20:49:21 +0000

By default, you can access MySQL only from the localhost. In order to access it from the network, you have to modify your my.cfg or my.ini:

Remove or comment out skip-networking option (by default in latest versions of MySQL this version is not present in configuration file)
add (or modify) bind-address with ip of your machine on which MySQL is running