Mar 272014
 

Small and at the same time great article from Steve on http://www.debian-administration.org/.

If you run a multi-user system it can increase security if you hide the display of running processes, and their arguments, which belong to other users. This helps avoid problems if users enter passwords on the command-line, and similar.

Continue reading »

flattr this!

Jul 112013
 

On server it’s useful to monitor, and collect, data about the use of your bandwidth, in the past I’ve wrote an article about “Monitor your bandwidth from the Linux shell” and I’ve also presented 4 useful tools that you can use to have a real time monitoring of the bandwidth:

IPTState : This software is a top-like interface to your netfilter connection-tracking table. Using iptstate you interactively watch where traffic crossing your netfilter/iptables firewall is going, sort by various criteria, limit the view by various criteria. But it doesn’t stop there: as of version 2.2.0 you can even delete states from the table!

pktstat displays a real-time list of active connections seen on a network interface, and how much bandwidth is being used. Partially decodes HTTP and FTP protocols to show what filename is being transferred. X11 application names are also shown.

NetHogs is a small ‘net top’ tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process. NetHogs does not rely on a special kernel module to be loaded. If there’s suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this. This makes it easy to indentify programs that have gone wild and are suddenly taking up your bandwidth.

IPTraf is a console-based network statistics utility for Linux. It gathers a variety of figures such as TCP connection packet and byte counts, interface statistics and activity indicators, TCP/UDP traffic breakdowns, and LAN station packet and byte counts.

They are all good I suggest to read my old articles to have a small introduction about them, today I want to show you vnstat, this small program has something more than the others, it can show real time statistics, but the feature that this small program shines it’s its ability to collect data over a long period of time.
Continue reading »

flattr this!

Jul 082013
 

Article by Chris Pentago

I am one person who has been fascinated by the virtualization. The idea that software can be able to take a single machine and divide it up to act and feel like several independent systems has never ceased to amaze me. The geniuses that came up with virtualization environments must be some really bright minded individuals.

Well, I have particularly been impressed by the way it can be able to simulate an entire machine with that has all the required hardware such as memory, processors, networking and all the resources user can wish for.

I have a list of some of the virtualization technologies that I have been privileged to try out. Do not worry, I am not exactly the tech junkie that most IT enthusiast are so everything you get from me is nothing short of simple observations without really going into the deep technical stuff.
Continue reading »

flattr this!

How to use a Playstation 2 joypad with Linux

Thanks to all the Indie games, Steam and Humble Bundle recently the market of games for Linux has become most active than ever and so I’ve bought some arcade/action/platform games. Perhaps it’s just me but I don’t like too much to manage around 10 different keys on the keyboard and remember all the combo that [...]

1 week with Mint Nadia XFCE

On the 21 of December Linux Mint 14 Xfce has been released, codename Nadia. This release of Mint is based on Ubuntu 12.10 and shipped with the XFCE desktop environemnt as my readers probably know I’ve installed Mint 13 XFCE on my new desktop and so I’ve decided to upgrade my installation to this new [...]