Software Vs Hardware RAID

Posted on in Categories Hardware, Linux, Storage, Tips, UNIX, Windows server last updated July 7, 2009

A redundant array of inexpensive disks (RAID) allows high levels of storage reliability. RAID is not a backup solution. It is used to improve disk I/O (performance) and reliability of your server or workstation. A RAID can be deployed using both software and hardware. But the real question is whether you should use a hardware RAID solution or a software RAID solution.

Download Of the Day: Firefox 3.5 For Windows, Linux, Mac OS X

Posted on in Categories Download of the day, Linux, Linux desktop, Mozilla, News, OS X, UNIX, Windows, windows vista last updated July 7, 2009

Firefox version 3.5 has been released and available for download. Firefox 3.5 is the fastest web browser. It is twice as fast as Firefox 3. As a result javascript and multimedia enabled web apps loads faster. Firefox is the first browser to support open video and audio formats, allowing practically limitless new ways for sites to display rich content. This is based upon the open formats (HTML 5) which allow displaying media without a plug-in and/or proprietary software.

Lighttpd Traffic Shaping: Throttle Connections Per Single IP (Rate Limit)

Posted on in Categories Apache, CentOS, fedora linux, FreeBSD, Howto, Iptables, lighttpd, Linux, Networking, PF Firewall, RedHat/Fedora Linux, Security, Ubuntu Linux, UNIX last updated February 9, 2010

If you do not control or throttle end users, your server may run out of resources. Spammers, abuser and badly written bots can eat up all your bandwidth. A webserver must keep an eye on connections and limit connections per second. This is serving 101. The default is no limit. Lighttpd can limit the throughput for each single connection (per IP) or for all connections. You also need to a use firewall to limit connections per second. In this article I will cover firewall and lighttpd web server settings to throttle end users. The firewall settings can be applied to other web servers such as Apache / Nginx and IIS server behind PF / netfilter based firewall.

Slowloris DoS Tool: It Can Bring Down Apache 1.x/2.x

Posted on in Categories Apache, Networking, News, PF Firewall, RedHat/Fedora Linux, Security Alert, UNIX, Windows server last updated June 19, 2009

Apache Security Update – a flaw In Apache can be used to carry out DoS. Slowloris is a new Apache DoS tool which can use slow Internet links to bring down Apache servers, rather than flooding networks. Most D/DoS tool requires faster net connections but this tool works with minimal bandwidth. This tool can lead to a DoS attack on Apache 1.x, 2.x, dhttpd, GoAhead WebServer, and Squid, while MS IIS6.0, IIS7.0, and lighttpd are confirmed not vulnerable to this attack.

Happy 40th Birthday UNIX!

Posted on in Categories UNIX last updated June 18, 2009

UNIX turns 40 – in 1969 group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna developed UNIX. Today Unix offered in many flavors and developed over time by AT&T as well as various commercial vendors (such as IBM, HP, Sun, Apple etc) and non-profit organizations. CW article concluded that after four decades, the future of the operating system is clouded, but its legacy will endure in form of Linux and Microsoft NT operating system.

OpenOffice.org Quick Introduction For New User

Posted on in Categories GNU/Open source, Howto, Linux desktop, OpenOffice.Org, Troubleshooting, Ubuntu Linux, UNIX, Windows, windows vista last updated June 18, 2009

OpenOffice.org (OOo) is a freely available, full-featured office suite. OOo is both a software product and a community of volunteers that produces and supports the software. However, new users may get lost while finding help, support and productivity enhancing extensions. This blog post covers OOo new user orientation to to discover support, tutorials, community insights, templates, clip art, extensions, and blogs for OOo.