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Search results for Software RAID and Encrypted Filesystem Benchmarks


Upgrading Debian Etch (Stable) to Lenny (Testing)

Post date: October 3, 2008, 03:10 Category: System Views: 2811 Comments
Tutorial quote: Lenny is updated everyday with the most recent software available, however the software may not be stable which is what Debian is really all about. However if like me you can’t stand the thought of having outdated software, heres how to upgrade.

The Linux /proc Filesystem as a Programmers' Tool

Post date: June 22, 2005, 09:06 Category: Programming Views: 3349 Comments
Tutorial quote: My entry into systems programming was guided by my desire to understand further the operating systems I was working with daily as a contract UNIX and, later, Linux system administrator. The result of this was ifchk, a packet sniffer detector I wrote in C and released in June of 2003. ifchk initially was written under IRIX and then ported to Linux, mostly under the 2.4 kernel. The current ifchk revision, beta 4, recently was released and beta 5 is on the way.

My work on ifchk has allowed me to examine programmatically several areas of operating system functionality. Examples include the Linux netlink(7) and rtnetlink(7) facilities, device control--that is, network interfaces--via ioctl(2), signals and proc, the process filesystem. Proc and its ability to display a wide array of data concerning the runtime state of a system are the focus of our discussion here.

A Fresh Approach - SUSE 10.1 package management

Post date: May 12, 2006, 13:05 Category: System Views: 4105 Comments
Tutorial quote: In SUSE 9.x and 10.0 the default package management software was the software management module and yast online update ( YOU ) in YaST2 and the susewatcher system tray applet. The susewatcher applet would faithfully report any security or system updates and would let you launch YOU to download and apply the updates. For third party software you could add online repositories to the installation sources module and ultimately you could manage all your software from the software management module, again in YaST2.

Growing ext3 partition on RAID1 without rebooting

Post date: August 12, 2006, 18:08 Category: System Views: 3358 Comments
Tutorial quote: Although rather straightforward, I couldn't find an easy step-by-step guide, so here I'll describe how I ended up growing my ext3 partion on a RAID-1 array.

Creating .deb-Packages With Checkinstall

Post date: April 12, 2005, 17:04 Category: Miscellaneous Views: 2427 Comments
Tutorial quote: Checkinstall is a nice tool to create simple .deb-packages that you can use in your local network (e.g. if you have to install the same piece of software on multiple computers running Debian). It lets you compile and install software from the sources like before, but with the difference that you end up with a simple Debian package which also means that you can easily uninstall the software you just compiled by running dpkg -r!

I will demonstrate the use of checkinstall by compiling and installing the anti-virus software ClamAV on a Debian system.

This howto is meant as a practical guide; it does not cover the theoretical backgrounds. They are treated in a lot of other documents in the web.

Installing and Using Hadoop

Post date: November 28, 2009, 22:11 Category: System Views: 4099 Comments
Tutorial quote: Learn to install configure and use the open source Hadoop framework from the Apache Foundation. Basic installation, configuration, executing jobs, and using the HDFS filesystem and the Web GUI.

Monitoring all filesystem modifications

Post date: April 12, 2005, 07:04 Category: Security Views: 3599 Comments
Tutorial quote: After loading this kernel module you can monitor all file system alterations by simply typing: cat /dev/fsysmon

It's original purpose was to feed a daemon with data but nevertheless I found it to be even more useful as a standalone project.

Working with gmirror on a Sun Fire X2100

Post date: August 12, 2006, 18:08 Category: System Views: 3444 Comments
Tutorial quote: Mirror setup. Recently I was given a brand new X2100 server made by Sun Microsystems. I installed FreeBSD on it and run a mailserver. The server has two 250GB SATA drives and I decided to use gmirror(8) to create RAID-1 on those disks.

Aggregating network interfaces

Post date: February 12, 2006, 07:02 Category: Network Views: 2976 Comments
Tutorial quote: Using more than one hard drive to achieve better performance and fault tolerance is very common. Less well known is that it's also possible to aggregate more than one network interface into a single logical interface. In Linux, this is handled by the bonding driver. Benefits of doing this are much the same as the benefits of aggregating discs using RAID: if one device dies, your server carries on working and by using two devices in parallel, performance can be improved.

Multimedia Support in Ubuntu 8.10 Intrepid Ibex

Post date: November 2, 2008, 05:11 Category: Multimedia Views: 3259 Comments
Tutorial quote: Often the case (and especially) when it comes out a new version of Ubuntu, that repositories from which we tend to download software are highly saturated. If you want to download and install the software more quickly, we will have to modify the list of repositories.
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