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How to allow remote access to databases

MySQL

Configure MySQL to listen for remote connections:

sed -i "s/^bind-address/#bind-address/" /etc/mysql/my.cnf

Configure MySQL to accept remote root connections (from any host ('%')):
(added line breaks for readability)

MYSQL_BATCH="mysql --user=root --password=$MYSQL_PASS --batch"
$MYSQL_BATCH --execute "INSERT INTO mysql.user ( Host , User , Password , Select_priv ,
    Insert_priv , Update_priv , Delete_priv , Create_priv , Drop_priv , Reload_priv , 
    Shutdown_priv , Process_priv , File_priv , Grant_priv , References_priv , 
    Index_priv , Alter_priv , Show_db_priv , Super_priv , Create_tmp_table_priv , 
    Lock_tables_priv , Execute_priv , Repl_slave_priv , Repl_client_priv , 
    Create_view_priv , Show_view_priv , Create_routine_priv , Alter_routine_priv , 
    Create_user_priv , ssl_type , max_questions , max_updates , max_connections , 
    max_user_connections) VALUES ( '%', 'root', '', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y',
    'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y','Y', 'Y', 'Y', 'Y', 'Y',
    'Y', 'Y', 'Y', 'Y', '', '0', '0', '0', '0');"

Restart MySQL for the changes to take effect:

/etc/init.d/mysql restart

 

PostgreSQL

Configure PostgreSQL to listen for remote connections:

CONF=/etc/postgresql/8.3/main/postgresql.conf
sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/" $CONF

Configure PostgreSQL to accept remote connections (from any host):

# configure postgres to accept remote connections
cat >> /etc/postgresql/8.3/main/pg_hba.conf <<EOF
# Accept all IPv4 connections - CHANGE THIS!!!
host    all         all         0.0.0.0/0             md5
EOF

Restart PostgreSQL for the changes to take effect:

/etc/init.d/postgresql-8.3 restart

 

Comments
coolnfroody's picture

MySQL Alternative

Simon O - Thu, 2011/07/14 - 00:54.

Hi All,

I'm by no means an expert so please bear in mind this is simply my own experience

I found it far easier to run the sed command, then use the web interface to change the host for the user in question to % (aka all/any).

NB: If you do this via the command line, note that the block above after "(added line breaks for readability)" is actually 2 commands - I'm sure this is obvious to most readers but caught me out for a minute or 2

You can do this either through Webmin or phpMyAdmin)

I still had to restart MySQL (I assume for the binding to apply). The restart command listed above barfed on me...

 

~# /etc/init.d/mysql restart
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service mysql restart

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the restart(8) utility, e.g. restart mysql

so in future, I'll be using

restart mysql

Anyway hope this is of help to someone

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