If you’re running confluence behind a reverse proxy then you might stumble upon an issue that prevents firefox from working correctly. Strange bugs will hapen like clicking on “add a new page” resulting in endless loading loops.

From time to time you have to update your SSL keys and certificates. In some cases you may have a mixed infrastructure e.g. “normal” http servers and tomcat or other java based servers. In the latter case you’ll have to import your shiny new certificate and key into your java keystore.

If you’re on a java project then you’ll very likely use maven.

Outdated dependencies can simply be shown via the following command:

Testing links in wicket is usually done like this tester.clickLink("wicketContainerId:linkId").

In case you have an application running under tomcat and want to write your logs to a seperate file using log4j you can use some variables that tomcat is setting up.

If you encounter an too many open files exception you usually edit /etc/security/limits.conf and increase the value. But on Ubuntu (10.04 LTS at least) this is ignored!