Following IronMan Challenge posts not only for the sake of seeing What Color of Hair & Shirt ends up with Matt but the posts have been much enlightening. Recently in IronMan Challenge, there’s been much talk about one of Miyagawa’s project, App::cpanminus. Basically, cpanminus is a tool to install perl module from CPAN, without the [...]
Category Archives: Ubuntu
Ubuntu – How to change default menu for Net Book Remix
Net Book Remix is another spin off of Ubuntu. It’s strength is to make Ubuntu to run on Netbook, miniature laptop which target for internet applications users. Typically, the screen size are small (from 9″ – 12″), thus it is light (0.8kg – 1.5kg) and runs on Atom processor. The kernel and programs on NBR [...]
Network IP address calculator – for subnet and range of host
One of the task installing a new FreeBSD box was dealing with IP addresses. Usually, google a web based calculater would do the trick. But today’s task is a bit different.
IPv6. A whole row of hexadecimal spinning in front of my eyes, just to figure out what is the range of IP that is usable. [...]
Perl – How to install Perl module using CPAN shell
One of Perl’s strength is it’s repository of modules, thousands of modules. No need to re-invent the wheel, just think of what you wanna do and search for it (http://cpan.perl.org).
The CPAN modules are available through the CPAN shell. In this post, we will talk briefly about how to install the CPAN shell and show an [...]
Apache – [warn] _default_ VirtualHost overlap on port 80, the first has precedence
Virtual Host. A feature that enables Apache to configure multiple domain into one web (http) server. This feature saves the need to run multiple instances of web server and thus saves resources.
After configuring the <VirtualHost> directives, some may encounter an error message :
Error : [warn] _default_ VirtualHost overlap on port 80, the first has precedence
This [...]
MySQL – Passwordless login within bash script
As like the previous post about passwordless login within Bash script, this post is about how to connect to MySQL database server using Bash script without MySQL client prompting for login.
Here it is :
ssh – How to encrypt/tunnel internet traffic through ssh
When using an insecure internet connection (e.g. wireless), it is a good practice to tunnel internet traffic through ssh. Tunneling through ssh provide encryption of the traffic starting from local computer to the point ends where ssh server is. It is especially important to encrypt the traffic out of the local PC when using un-secure [...]
SmokePing – How setup logging (or debuging)
SmokePing is an utility to keep track of the network latency from your network to various site. Its output are recorded in graph, for analysis purpose. Its configuration are simple and easy to setup. But some times, logging are needed to debug some probes failed to output to graph. The logging setup will need to [...]
Linux – Shorewall firewall with PPTP VPN dialup client
PPTP VPN uses protocol GRE on two way, both inbound and outbound. Setting up the firewall to allow PPTP VPN dialup client (e.g. Ubuntu’s NetworkManager) to use protocol GRE is just a few steps in adding rules and interfaces. This post is based on the previous post “How to set up Shorewall firewall (alternate to [...]
Linux – How to set up Shorewall firewall (alternate to FireStarter)
There are a few option of firewall interface available on Linux for iptables, both GUI (Graphical User Interface) and CLI (Command Line Interface). FireStarter user interface on GUI is easy to use and configure. The only problem is it does not work properly with PPTP VPN dialup, it blocks protocol GRE. It does provide a [...]
