Home » Archive

Articles in the Java Category

Featured, Glassfish, Java, Security »

[5 Jan 2012 | No Comment | ]

This is an old bug, first discovered in 2003, but now was applied to the hash table functions from the new programming languages. The main idea behind this bug is to create hashes which collide, because collision will eat a lot more cpu cycles on your server. For a post of 2 MB is resulting in a 44 minutes of CPU time which will results in a DOS.

Share this post

Hide Bookmarks

Glassfish, Java, Recovery, Security »

[23 Nov 2011 | No Comment | ]

I should admit, I didn’t read the Glassfish 3.1 Administration Manual, and I don’t know if this is documented. Anyway the main problem appeared when I tried to connect on my cluster instances with admin credentials. If I connect with VisualVM or JConsole to Domain Administration Server (DAS) on 8686 I don’t have any problem. When I’m trying to connect to my cluster instances on port 28686 with admin credentials I get from JConsole

Share this post

Glassfish, Java, Security »

[13 Jul 2011 | 3 Comments | ]

I switched all my Java Glassfish webservices to SSL, because I wanted to have an encrypted communication between me and my clients. Until then, all my applications worked flawlessly over the HTTP protocol, but now, after switching to SSL, I got the following error:

Share this post

Hide Bookmarks

Clustering, Featured, Glassfish, Headline, How-to, Java, Linux, Shell »

[4 May 2011 | 3 Comments | ]

Finlay is here. For me, Glassfish 3.1, was one of most awaited piece of software, for all it’s new features and clustering support. Glassfish 3.1 slightly changed the way to install cluster, in a much better and integrated way. This version come with a lot of new functionality, but also with improved parts related to Glassfish 2.1.

Share this post

Hide Bookmarks

Clustering, Featured, Glassfish, How-to, Java, Mysql »

[14 Apr 2011 | No Comment | ]

Is not a bug, but a pretty annoying configuration thing which appear when you try to configure Enhanced Broker Cluster in Glassfish. I configured my persistent store, for Enhanced Broker Cluster, as jdbc / MySQL:

Share this post

Hide Bookmarks