Tips of Kubuntu

Q:Where can environment variables be loaded at startup or used by many programs? (e.g. PATH)

A:~/.bashrc  /etc/profile  /etc/environment  /etc/kde3/kdm/.kdmrc  ~/.xsessions  /etc/bash.bashrc …

Tools under Linux

NXServer 

NXServer (freeNX as its compatible GNU version) is a fast, easy-to-configure server/client for remote access (via X).  To install is really simple under debian. To make it work securely and properly, note the following:

1. Make you own decision on whether to use self-generated key pair, not much trouble taken but much more stronger security.

2. Make necessary changes to the nxloadconfig file as well as the nxserver script

3. Configure sshd_config properly to support PAM and user login.