linuxari | Linuxaria

Free reserved space in ext3/ext4 Filesystems

May 052011

The partitions that contains the ext3 and ext4 filesystems reserve the 5% of the total size of the filesystm by default. The idea here is even when you run out of disk space, the root user should still be able to log in and system services should still run. Without this option, the root user could be not able to acces and “clean up” since the system may become unstable, trying to log to in a filesytem full at 100%, for example. The other reason is to help the general optimization with less fragmentation of the filesystem.

#! CrunchBang 10 “Statler” Review

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May 032011

After all those rich desktop Environment saw in Ubuntu, Chackra or Gnome 3 in general i needed a desktop minimalistic and comfortable, so today I’ve done some test on #! Crunchbang 10, it’s a Debian GNU/Linux based distribution with a lightweight desktop Environments: Openbox and optionally XFCE.

I’ve tested it with a virtualmachine on Virtualbox, installation made at 32 bit with Openbox.
Short story : i loved this Debian 6 in black and white, with custom Kernel and a minimalistic approach.

Long story…continue reading
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Nagios World Conference Europe™

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May 022011

The Nagios World Conference™ will be held on May 12th at Bolzano/Italy and is organized by wuerth-phoenix.

The agenda seem interesting and there is the participation of namable speakers such as Nagios founder Ethan Galstad, Nagios Plugin coordinator Ton Voon or the NS Client creator Michael Medin. Moreover, there will be presentations of the new OTRS version and the interaction of OSS monitoring solutions such us Nagios with the integrated CMDB and the Change Management workflow engine.

Finally ntop´s Luca Deri will take an introduction on application latency monitoring using nProbe via NetFlow.

The entry is free, after registration, today i’ve done mine and i’ve received a confirmation email that say that there are still 100 available seats.
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The best articles of March 2011

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Apr 302011

This is the top 7 articles for the month of March 2011.

7 – Collectd, system performance statistics on Linux

In these days I have seen in a somewhat more detailed way collectd, an excellent tool for collecting statistics on various aspects of our Linux servers.

From Wikipedia: “collectd is a UNIX-daemon which collects, transfers and stores performance data of computers and network equipment. The acquired data is meant to help system administrators maintain an overview over available resources in order to detect existing or looming bottlenecks.

The first version of the daemon was written in 2005 by Florian Forster and has been further developed as free open-source project. Other developers have written improvements and extensions to the software that have been incorporated into the project. Most files of the source code are licensed under the terms of the GNU General Public License, version 2 (GPLv2), the remaining files are licensed under other open source licenses”
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Poll: What’s the memory usage of your empty Linux Desktop Environment ?

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Apr 302011

In these days there is much talk about Unity, the new default desktop environment of Ubuntu one of the most popular Linux distributions, and so Unity will become the normal desktop environment for many users, there is also a lot of talk about Gnome 3 with its new features and capabilities that usually you love or hate. Others Linux distributions point on minimalism on their desktop such as Bodhi Linux or CrunchBang.