Security Guide for Linux by NSA

The National Security Agency (NSA) recently issued security configuration guides for various operating system, including MAC OS X, Windows, Linux and Solaris. The published guides are used by the government and are pretty interesting. Guide for Linux is presented as Hardening Tips for the Red Hat Enterprise Linux 5 and Guide to the Secure Configuration of Red Hat Enterprise Linux 5. Of course most of recommendation suit other distributions. Here […]

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Latest nmap 4.50 is out. Must upgrade!

Nmap is well known open source tool for security auditing and many other related network exploring activities. Here is it’s developers’ description taken from their site: Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, […]

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Install Ubuntu packages by clicking html link

Apturl allows to install Ubuntu packages using apt:pkgname like syntax with any compatible browser like Firefox, Konqueror or other. Let me note that apturl comes with Ubuntu Gutsy 7.10 by default and is very useful while placing links through manuals, howtos etc. For example, to install ntop utility in Ubuntu I’d suggested to run the following command from terminal: sudo apt-get install ntop, but now I can just place the link like this: hey, install ntop by clicking here!

Here is graphical representation of this example:

apturl example firefox

After you click pressing “ok” button Ubuntu will start installation process of certain package:

apturl example firefox install

 I hope this would be useful for bloggers writing manuals for Ubuntu Gutsy users. Real thanks apturl’s author Harsh J (aka Qwerty Maniac).

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Defragmentation in Linux? Only sometimes

Sander Marechal published at LXer interesting observations on file defragmentation that is would be needed in Linux: I still wondered how on earth it was possible the 100k+ files in Gentoo’s portage system – updated every time I synchronize the portage tree – didn’t fragment my filesystem. Or was my filesystem fragmented and did I not know? Only recently, I found a script that is actually able to put numbers […]

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Update Dell laptop BIOS with Ubuntu

Good news for Dell laptops owners: latest BIOS images can be loaded with Ubuntu, Fedora or CentOS! It was announced at official Direct2Dell blog by Matt Domsch. In a nutshell to get new BIOS installed while you’re running Ubuntu 7.04 Feisty, 7.10 Gutsy, or Hardy just enable Universe repository in sources.list (System -> Administration -> Software Sources) and run under root (sudo -s): wget -q -O – http://linux.dell.com/repo/firmware/bootstrap.cgi | bash […]

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