In my lab I have set up the CentOS 6.3 as the Puppet Master server, and Ubunt 12.10 as the Puppet agent. Install Puppet-Server on CentOS (Master) sudo rpm -ivh http://yum.puppetlabs.com/el/6/products/i386/puppetlabs-release-6-6.noarch.rpm sudo yum install puppet-server Install Puppet on Ubuntu (Agent) wget http://apt.puppetlabs.com/puppetlabs-release-precise.deb sudo dpkg -i puppetlabs-release-precise.deb sudo apt-get update sudo apt-get install puppet Specify the … Continue reading Puppet Installation
Disable the blinking wifi LED in Ubuntu
The wifi LED keeps blinking in my Ubunut 12.10 laptop (Intel chips) when it is connected. To disable it, I have changed the led_mode to 0. Here is how I did it:1) Change to root user.jchen@JC:~$ sudo -i[sudo] password for jchen: 2) Find out the wifi module.root@JC:~# lsmod | grep iwiwlwifi … Continue reading Disable the blinking wifi LED in Ubuntu
Screen brightness reset in Ubuntu
My Ubuntu laptop's screen brightness resets everytime after reboot. I have found a way to make the brightness adjustment 'stay permantly': 1) Adjust the brightness to the level that I like, then run 'cat /sys/class/backlight/acpi_video0/brightness '. The command will return the brightness level in a integer value. Mine is 12. 2) Add the line 'echo 12 … Continue reading Screen brightness reset in Ubuntu
Fortinet SSL VPN Client in Ubuntu
It is intereting that the Fortinet SSL VPN client works fine in my Windows machine, but does not work in my Ubuntu laptop. I have found the reason is that a few routes are missed in the routing table. To make it work, I wrote a script to manually add those routes after VPN is … Continue reading Fortinet SSL VPN Client in Ubuntu
Auto Configure Proxy in Ubuntu
It is painful to turn the proxy on and off in my Ubuntu laptop between office and home. As a lazy guy, I would like to make it automatic. Easy life now 🙂 1) Create 3 scripts named proxy_on, proxy_off and check_proxy under /usr/local/bin. #!/bin/bash #proxy_on gsettings set org.gnome.system.proxy.socks host 'proxy.company.local' gsettings set org.gnome.system.proxy.socks port … Continue reading Auto Configure Proxy in Ubuntu
