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Ubuntu

How to install Opera Web Browser in Ubuntu including flash,Java Plugins

Post date: October 18, 2009, 19:10 Category: Software Views: 3830 Comments
Tutorial quote: Opera is a web browser and internet suite developed by the Opera Software company. The browser handles common
Internet-related tasks such as displaying websites, sending and receiving e-mail messages, managing contacts, IRC
online chatting, downloading files via BitTorrent, and reading web feeds. Opera is offered free of charge for
personal computers and mobile phones, but for other devices it must be paid for.
Linux

Benchmarking Filesystems

Post date: April 12, 2005, 07:04 Category: Benchmarks Views: 3551 Comments
Tutorial quote: I recently purchased a Western Digital 250GB/8M/7200RPM drive and wondered which journaling file system I should use. I currently use ext2 on my other, smaller hard drives. Upon reboot or unclean shutdown, e2fsck takes a while on drives only 40 and 60 gigabytes. Therefore I knew using a journaling file system would be my best bet. The question is: which is the best? In order to determine this I used common operations that Linux users may perform on a regular basis instead of using benchmark tools such as Bonnie or Iozone. I wanted a "real life" benchmark analysis. A quick analogy: Just because the Ethernet-Over-Power-Lines may advertise 10mbps (1.25MB/s), in real world tests, peak speed is only 5mbps (625KB/s). This is why I chose to run my own tests versus using hard drive benchmarking tools.
Unix+clones

Command your network with Kaboodle

Post date: June 28, 2005, 09:06 Category: Network Views: 3764 Comments
Tutorial quote: Quite often setting up a local network is much easier than managing it. Even technically challenged users can figure out how to connect a couple of computers and a printer. However, tasks like maintenance, troubleshooting, and remote secure connections require more than just "which-cable-goes-where" knowledge. You need something like Kaboodle, a nifty tool that can help you to manage your local network like a pro.

Kaboodle allows you to visualize your local network, control computers on it via VNC, and connect to other Kaboodle-enabled networks. Kaboodle was developed for Windows, but according to its Web site, it will happily run under Wine on Linux and FreeBSD.
Linux

How To Block Spam Before It Enters The Server (Postfix)

Post date: June 4, 2007, 23:06 Category: Security Views: 4982 Comments
Tutorial quote: The last few weeks have seen a dramatic increase in spam (once again). Estimates say that spam makes now up for 80 - 90% of all emails, and many mail servers have difficulties in managing the additional load caused by the latest spam, and spam filters such as SpamAssassin do not recognize large parts of that spam as they did before. Fortunately, we can block a big amount of that spam at the MTA level, for example by using blacklists, running tests on the sender and recipient domains, etc. An additional benefit of doing this is that it lowers the load on the mail servers because the (resource-hungry) spamfilters have to look at less emails.
SuSe

Working with SUSE Linux Enterprise Server 9

Post date: June 22, 2005, 09:06 Category: System Views: 4121 Comments
Tutorial quote: Working with SUSE Linux Enterprise Server (SLES) requires an understanding of the login process, including local account files, system accounts, and managing identities.

Using a console shell or the graphical environment are two possible methods of working on a SLES machine.

Finding your way around a SLES installation requires an in-depth knowledge of the filesystem layout. Essential filesystem components are documented and explained in this chapter. Basic filesystem permissions are also described.
OpenSUSE

Removing Internet Junks (ads, banners, pop-ups, etc ..) using privoxy on OpenSuSe

Post date: April 20, 2009, 09:04 Category: Security Views: 4463 Comments
Tutorial quote: Privoxy is a Web proxy based on Internet Junkbuster with advanced filtering capabilities for protecting privacy, filtering Web page content, managing cookies, controlling access, and removing ads, banners, pop-ups, and other obnoxious Internet junk. Privoxy has a very flexible configuration and can be customized to suit individual needs and tastes. Privoxy is useful for both stand-alone systems and multi-user networks.
Linux

Benchmarking Filesystems Part II

Post date: January 6, 2006, 22:01 Category: Benchmarks Views: 5367 Comments
Tutorial quote: After the last article was published, I have received more than a dozen requests for a second filesystem benchmark using the 2.6 kernel. Since that time, I have converted entirely to XFS for every Linux machine I use, so I may be a bit bias regarding the XFS filesystem. I tried to keep the hardware roughly the same. Instead of a Western Digital 250GB and Promise ATA/100 controller, I am now am using a Seagate 400GB and Maxtor ATA/133 Promise controller. The physical machine remains the same, there is an additional 664MB of swap and I am now running Debian Etch. In the previous article, I was running Slackware 9.1 with custom compiled filesystem utilities. I've added a small section in the beginning that shows the filesystem creation and mount time, I've also added a graph showing these new benchmarks. After the first round of benchmarks, I received a sleuth of e-mails asking for the raw numbers. The numbers are now included in tables at the end of this e-mail for both the last and current set of benchmarks.
Ubuntu

Simple Package management with Synaptic Package Manager

Post date: December 5, 2006, 22:12 Category: System Views: 4676 Comments
Tutorial quote: Synaptic is a graphical user interface (GUI) for managing software packages on Debian-based distributions. If you are using Debian or Ubuntu you will easily find Synaptic in the System Tools menu or in the Administration menu. Synaptic uses the GTK graphic libraries . So, if you are using GNOME on your debian-based distro you will probably have Synaptic installed as well. Synaptic is a graphical package management program for apt. It provides the same features as the apt-get command line utility with a GUI front-end based on Gtk+.
Debian

Managing Xen With Xen-Tools, Xen-Shell, And Argo

Post date: November 5, 2006, 21:11 Category: System Views: 4888 Comments
Tutorial quote: This guide describes how to install and use xen-tools, xen-shell, and Argo on a Debian system. All three packages provide useful tools for the administration of virtual Xen machines. Xen-tools is a collection of Perl scripts that allow you to easily create, update, and delete Xen guest domains. The xen-shell provides a command-line interface to owners of Xen domains so that they can manage their Xen domains without the help of the server administrator. And with Argo, you can control Xen domains through a web interface or through a menu on the command line.
CentOS

Managing OpenVZ With HyperVM On CentOS 5.2

Post date: February 5, 2009, 12:02 Category: Installing Views: 5566 Comments
Tutorial quote: HyperVM is a multi-platform, multi-tiered, multi-server, multi-virtualization web based application that will allow you to create and manage different virtual machines each based on different technologies across machines and platforms. Currently it supports OpenVZ and Xen virtualization and is available for RHEL 4/5 as well as CentOS 4 and CentOS 5. This tutorial shows how to install it on a CentOS 5.2 server to control OpenVZ containers. I will also explain how to manage OpenVZ containers with HyperVM on a remote CentOS 5.2 server ("slave").
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