Thanks for the quick replies.

Martin:
No luck with your advice. I'm not sure there's a problem with mysql
permissions, as I can log in with a mysql client from the local
machine and access the database as normal. The original command used
to set the permissions was 'GRANT ALL ON DB.* TO 'User'@'%' IDENTIFIED
BY 'password';'

Christopher:
I've tried using the IP address instead, unfortunately that didn't work.

Bob:
The entry in the hosts file is defined as you said.

For some reason tomcat can't connect to the database and create a
connection pool, even though a normal client can connect just fine. I
even wrote a small java program to connect using JDBC, in case that
was the problem. I used the same parameters given to tomcat and again,
it works just fine.

On 7/19/06, Bob Hall <[EMAIL PROTECTED]> wrote:
Cameron,

You wrote:

> I have a newly installed and configured Ubuntu
> server running
> Tomcat5.5 and Mysql 5.0. This server was created in
> an attempt to
> migrate from a Red Hat server in a similar
> configuration, running the
> exact same webapp. Most of the
> configuration/classpath differences
> between the two platforms have been ironed out.
>
> The Problem:
>
> When our webapp trys to connect to the database on
> localhost, an exception
>
> 'java.security.AccessControlException: access denied
> (java.net.SocketPermission localhost resolve)'
>
> is generated.
>

Looks like the OS is unable to resolve localhost.
Does the ubuntu server have the following in its
/ect/hosts file?

127.0.0.1    localhost

-Bob

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