Re: How do you use Net::OpenSSH to query mysql database via ssh tunnel

[Anonymous Monk]

Looks like you're opening a TCP tunnel, TCP != UNIX sockets. Try connecting to the MySQL DB via TCP.

[nysus]

I'm not sure I follow. But here's why I'm trying to do it via an SSH tunnel: the database server I eventually want to connect to is locked down so that it only accepts queries from trusted IP addresses. I want a solution that will work from any machine.

[Corion]

Your database client needs to connect to a local network port (127.0.0.1:12345).

This local network port is forwarded by OpenSSH to a remote network port (127.0.0.1:12345 -> (openssh) -> 127.0.0.1:3306).

The 127.0.0.1:3306 is on the remote server where MySQL runs.

You cannot pass a socket variable in a string to the MySQL client library. You need to pass it as host:post.

In my example, this is 127.0.0.1:12345.

[nysus]

OK, that helped. So this code works:

my $ssh = Net::OpenSSH->new('me@10.0.1.17');
my ($socket, $pid) = $ssh->open_tunnel('10.0.1.17', '3306');
my $dsn = "DBI:mysql:database=calendar;host=127.0.0.1:3306";
my $dbh = DBI->connect($dsn, 'user', 'password');

UPDATE: I think this is just connecting me to my local database, not the remote one.

Many thanks!

[nysus]

Wait, crap. I think I'm just connecting to my local database with my code above, not the remote one.