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Editorial Team
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Asked: 2026-05-16T11:03:57+00:00

I tried creating a SSH tunnel using ssh -L 3306:localhost:22 <hostip> Then running my

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I tried creating a SSH tunnel using

ssh -L 3306:localhost:22 <hostip>

Then running my python script to connect via localhost

conn = MySQLdb.connect(host'localhost', port=3306, user='bob', passwd='na', db='test')

However, I receive the following error

(2002, "Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)")

How can I make sure I’m hitting the correct host and not just some problem with the bind?

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1 Answer

  1. Editorial Team

    Try changing "localhost" to "127.0.0.1", it should work as you expect. This behavior is detailed in the manual:

    UNIX sockets and named pipes don’t
    work over a network, so if you specify
    a host other than localhost, TCP will
    be used, and you can specify an odd
    port if you need to (the default port
    is 3306):

    db=_mysql.connect(host="outhouse", port=3307, passwd="moonpie", db="thangs")

    If you really had to, you could
    connect to the local host with TCP by
    specifying the full host name, or
    127.0.0.1.

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