jdk installation

when installing jdk depenging on the version for JRE to work correctly as well

java-sun-compat

has to be installed too.

for example for jdk-6u6-linux-i586.rpm to work along with tomcat you need to install java-1.6.0-sun-compat-1.6.0.06-1jpp.i586.rpm as well, otherwise tomcat and the applications that need jre 1.5 upwards will not work.

Strange Linux PPTP problem

When using Linux PPTP service web pages fail to load completely [freeze] (aka common PPTP MTU problem) all one has to do is to:

> cat /etc/ppp/ip-up.local
#!/bin/bash
/sbin/ifconfig $1 mtu 1400

Tor problem

When Tor can not connect the first thing you do is to check the date/time of your machine!