Port(s) Used by JDBC

Question

Can anyone tell me what port(s) JDBC servlets use? I've got some programmers wanting to user JDBC servlets between machines and they must traverse the Internet and our firewall to do so. As the netadmin who also administers the firewall I have to open the appropriate ports.
Many thanks!

Answer 1

Hi,
First mysql runs as standard on 3306, tomcat runs usually on either 80 or 8080 depending on the settings in the tomcat/sconf/server.xml file. DB2 runs on 50000, ssl runs on 543?
But surely, if you are using a servlet on machine A and logging on using machine B, then you are using the port that is specified to connect between the two machines, and the local machine then connects to its local database, so the firewall is irrelevant to this. If this is not the case, then shoot your developers and get some new ones who are sending unecessary traffic across the network which is obviously allowing any one to sniff the connection.
Make them use linux too, as the security is better and easier than other systems and runs on a miniscule amount of processing power as do all decent servers, and allows unlimited connections rather than the expensive beta version software that MS sell for vast amounts of money which often limits you to max five connectiosn if it works at all!
Final point, avoid XP like the plague, it's almost as bad as ME, thats Windows ME not me!
Sorry, back to ports. Our firewall for a project lab uses deny all. Then we add allow from as the students ask for it. Do this to your developers, and make them give you a good reason for why they need to run servlets across the network.
best,
kev