[Discover] Linux Security HOWTO http://en.tldp.org/HOWTO/Security-HOWTO/
(linux security howto english) 
[Discover] The Vim commands cheat sheet http://www.tuxfiles.org/linuxhelp/vimcheat.html (vim vi tutorial cheatsheet)
[Discover] Unix Toolbox http://cb.vu/unixtoolbox.xhtml (commands linux reference sysadmin)
[Discover] Unison File Synchronizer http://www.cis.upenn.edu/~bcpierce/unison/ (sync backup windows tools)
[Discover] IT-Helpnet.de http://www.it-helpnet.de/ (windows documents codes programming)
[Discover] The Linux Documentation Project http://tldp.org/index.html (reference documentation linux howto)
[Discover] Cacti: The Complete RRDTool-based Graphing Solution http://cacti.net/ (network monitoring sysadmin php)
[Discover] ~/vim_local/vimrc.html http://www.amix.dk/vim/vimrc.html (vim linux config)
[Discover] Do You Use Linux? The RIAA and MPAA Don't Want You To Use This Program | fsckin w/ linux http://www.fsckin.com/2007/09/27/do-you-use-linux-the-riaa-and-mpaa-dont-want-you-to-use-this-progra ... (privacy bittorrent tools linux)
[Discover] Enterprise Audit Shell Forum - Powered by vBulletin http://eas.strchr.net/ (opensource linux monitoring security)
[Discover] Techthrob.com | Technology | Howto: Delete Files Permanently and Securely in Linux http://www.techthrob.com/tech/securedelete.php (linux security files howto)
[Discover] http://www.linuxfromscratch.org/hints/downloads/files/essential_prereading.txt http://www.linuxfromscratch.org/hints/downloads/files/essential_prereading.txt (admin articles lfs linux)
[Discover] VirtualHosts,OpenBlueDragon with Tomcat 5.5, Apache2 (mod_jk) on Debian Etch | Sebastian Mogilowski' http://www.mogilowski.net/?p=24&lang=de-de (apache debian tomcat linux)
[Discover] CrossOver Chromium http://www.codeweavers.com/services/ports/chromium/ (google ubuntu windows chrome)
[Discover] Kernel Driver Statement - The Linux Foundation https://www.linuxfoundation.org/en/Kernel_Driver_Statement (linux)
[Discover] SourceForge.net: Duplicate Files Finder http://sourceforge.net/projects/doubles/ (windows linux sourceforge software)
[Discover] Avaya Labs Research Libsafe http://www.research.avayalabs.com/gcm/usa/en-us/initiatives/all/nsr.htm&Filter=ProjectTitle:Libs ... (linux security)
[Discover] Ethereal Capture Filters http://home.insight.rr.com/procana/index.html (linux networking)
[Discover] FreeBSD as a Guest OS http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/virtualization-guest.html (linux vm xen parallels)
[Discover] Lazy Linux: 10 essential tricks for admins http://www.ibm.com/developerworks/linux/library/l-10sysadtips/?S_TACT=105AGX54&S_CMP=C0115&c ... (linux reference tricks shell)
[Discover] The Vim commands cheat sheet http://www.tuxfiles.org/linuxhelp/vimcheat.html (vim vi tutorial cheatsheet)
[Discover] Unix Toolbox http://cb.vu/unixtoolbox.xhtml (commands linux reference sysadmin)
[Discover] Unison File Synchronizer http://www.cis.upenn.edu/~bcpierce/unison/ (sync backup windows tools)
[Discover] IT-Helpnet.de http://www.it-helpnet.de/ (windows documents codes programming)
[Discover] The Linux Documentation Project http://tldp.org/index.html (reference documentation linux howto)
[Discover] Cacti: The Complete RRDTool-based Graphing Solution http://cacti.net/ (network monitoring sysadmin php)
[Discover] ~/vim_local/vimrc.html http://www.amix.dk/vim/vimrc.html (vim linux config)
[Discover] Do You Use Linux? The RIAA and MPAA Don't Want You To Use This Program | fsckin w/ linux http://www.fsckin.com/2007/09/27/do-you-use-linux-the-riaa-and-mpaa-dont-want-you-to-use-this-progra ... (privacy bittorrent tools linux)
[Discover] Enterprise Audit Shell Forum - Powered by vBulletin http://eas.strchr.net/ (opensource linux monitoring security)
[Discover] Techthrob.com | Technology | Howto: Delete Files Permanently and Securely in Linux http://www.techthrob.com/tech/securedelete.php (linux security files howto)
[Discover] http://www.linuxfromscratch.org/hints/downloads/files/essential_prereading.txt http://www.linuxfromscratch.org/hints/downloads/files/essential_prereading.txt (admin articles lfs linux)
[Discover] VirtualHosts,OpenBlueDragon with Tomcat 5.5, Apache2 (mod_jk) on Debian Etch | Sebastian Mogilowski' http://www.mogilowski.net/?p=24&lang=de-de (apache debian tomcat linux)
[Discover] CrossOver Chromium http://www.codeweavers.com/services/ports/chromium/ (google ubuntu windows chrome)
[Discover] Kernel Driver Statement - The Linux Foundation https://www.linuxfoundation.org/en/Kernel_Driver_Statement (linux)
[Discover] SourceForge.net: Duplicate Files Finder http://sourceforge.net/projects/doubles/ (windows linux sourceforge software)
[Discover] Avaya Labs Research Libsafe http://www.research.avayalabs.com/gcm/usa/en-us/initiatives/all/nsr.htm&Filter=ProjectTitle:Libs ... (linux security)
[Discover] Ethereal Capture Filters http://home.insight.rr.com/procana/index.html (linux networking)
[Discover] FreeBSD as a Guest OS http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/virtualization-guest.html (linux vm xen parallels)
[Discover] The Linux Documentation Project: Guides http://www.tldp.org/guides.html (linux tutorials)
[Discover] Lazy Linux: 10 essential tricks for admins http://www.ibm.com/developerworks/linux/library/l-10sysadtips/?S_TACT=105AGX54&S_CMP=C0115&c ... (linux reference tricks shell)