Linuxaria

How to protect Apache with Fail2ban

Apr 232013

Around 2 years ago I wrote an article about fail2ban.

Fail2ban is an intrusion prevention framework written in the Python programming language. It is able to run on POSIX systems that have an interface to a packet-control system or firewall installed locally (such as, iptables or TCP Wrapper).
Fail2ban’s main function is to block selected IP addresses that may belong to hosts that are trying to breach the system’s security. It determines the hosts to be blocked by monitoring log files (e.g. /var/log/pwdfail, /var/log/auth.log, etc.) and bans any host IP that makes too many login attempts or performs any other unwanted action within a time frame defined by the administrator.

Today I want to show you some configurations that you can use to improve the security of your Apache.
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Linux shell: take screenshots with scrot

Howto 5 Responses »

Apr 142013

Sometimes can be useful to have a small program that you can run from the command line and able to do a screenshot of your desktop or just a portion of it, for this task the perfect software is: scrot

Scrot (SCReenshOT) is a screen capture utility using the imlib2 library to aquire and save images. scrot has a few really interesting options, detailed below. The basic usage is to specify a [file] as the filename to save the screenshot to and scrot will take a screenshot of the whole desktop.
The latest release (0.8) has almost 10 years, still this small program can be useful for his ability to be run completely from the command line and so you could use it to concatenate other commands or just because it’s really lightweight and easy to use.

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Linux Games: Atomic Zombie Smasher

News, Pills, Review No Responses »

Apr 122013

Atom Zombie Smasher is a real-time strategy game developed by independent developer Blendo Games. In it, the player attempts to rescue as many citizens as possible from an oncoming zombie horde using helicopter rescue units and an array of military units to protect the citizens and defeat the zombies.

This is a game released on 2011 and I’ve talked about it in my article 5 zombies games on Linux so why talking about it as news ?

Because it’s this week star at the Humble Weekly Sale

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ZFS is ready for your Linux desktop

News, Pills 8 Responses »

Apr 102013

As first thing a small lesson about what’s ZFS:

ZFS is a combined file system and logical volume manager designed by Sun Microsystems. The features of ZFS include protection against data corruption, support for high storage capacities, integration of the concepts of filesystem and volume management, snapshots and copy-on-write clones, continuous integrity checking and automatic repair, RAID-Z and native NFSv4 ACLs. ZFS is implemented as open-source software, licensed under the Common Development and Distribution License (CDDL). The ZFS name was registered as a trademark of Oracle until September 20, 2011

And now after more than two years in the experimental stage, the ZFS file system for Linux is ready for widespread use.
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Resize pdfs from the command line in Linux

Howto, Pills 1 Response »

Apr 072013

On many occasions, you might want to resize a PDF to send it by Email or put it on the web, today I had more than 50MB of PDF to be put as attachment of an article, and that was really too much. Using Linux you just need the program ghostscript to do everything and with a few commands you’ll have your resized documents.

For example my 50MB of documents become 15MB once I resized the PDF keeping a good quality, much better,

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