Exception while configuring JDBC realm

[Ramya Raghukumar <ra...@yahoo.co.uk>]

I am trying to configure jdbc realm on Tomcat 6, by connecting to Oracle 11g that runs on Ubuntu.I tried doing it with <Realm> inside <Engine> but got the exception "Network adapter unable to establish connection".

However when I tried to connect to the database through a JNDI resource using <Resource> inside <Engine>, it worked fine. (I had
 removed the <Realm> element from <Engine> and had only <Resource>).

I continued getting the exception when I had both <Resource> and <Realm> inside <Engine>.

I also tried configuring JDBC realm at the context level but it thew the same exception.

What am I missing?

Thanks.





      





      


      

Re: Exception while configuring JDBC realm

[Ognjen Blagojevic <og...@etf.bg.ac.rs>]

Ramya Raghukumar wrote:
> I am trying to configure jdbc realm on Tomcat 6, by connecting to Oracle 11g that runs on Ubuntu.I tried doing it with <Realm> inside <Engine> but got the exception "Network adapter unable to establish connection".
> 
> However when I tried to connect to the database through a JNDI resource using <Resource> inside <Engine>, it worked fine. (I had
>  removed the <Realm> element from <Engine> and had only <Resource>).
> 
> I continued getting the exception when I had both <Resource> and <Realm> inside <Engine>.
> 
> I also tried configuring JDBC realm at the context level but it thew the same exception.
> 
> What am I missing?

It smells like the network issue.

Did you test the access to the DB server with "telnet server.com 1521", 
or something similar?

Regards,
Ognjen

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