I searched over internet, on several tens of posts, to find how to delete a crashed Innodb table. Short story: I tried to import a big table but it crashed in the middle of the process (power failure). The table was not very important so I didn’t care about the table, I just want to delete it and start from the scratch, but surprise! The table cannot be deleted! I use the latest MySQL Innodb plugin from Debian backports repository (is coming with Debian 5.1.xx) with file per table …

mod_qos is becoming a very popular module for Apache, from the discover of Slowloris DDoS Attack. It seems, mod_qos is the best solution for Slowloris attack on Apache 2, but you can also check mod_evasive, mod_security or http accelerator “Varnish”. In this post I will try to present a step by step tutorial how to install mod_qos and configure to prevent Slowloris DDoS attack.

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After an Amavis upgraded my e-mail system started to have a strange behavior. A lot of emails sent internally from one user to another stopped with the following message:

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After upgrading to the latest version of Debian squeeze/sid, I was not able to use the networking in java.
If you get:
[2/16/10 10:39 AM] Exception occurred:
java.net.SocketException: Network is unreachable
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:525)

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A lot of people are not satisfied by the default Java Logging (JUL) in Glassfish. Also, myself I encountered some problems on clustered environments where we should have one single log and not one log for each instance. Trying to change the logging system in Glassfish it looks to be almost impossible , but I found a very interesting project java.util.logging to log4j Bridge and the sky become more clear for Glassfish logging. Jul to Log4J Bridge are part of log4J project and is very useful when you …