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Tip: The Perfect Desktop - OpenSUSE 11 (GNOME) |
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Tuesday, 01 July 2008 |
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This tutorial shows how you can set up an OpenSuse 11 desktop that is a full-fledged replacement for a Windows desktop, i.e.
that has all the software that people need to do the things they do on
their Windows desktops. The advantages are clear: you get a secure
system without DRM restrictions that works even on old hardware, and
the best thing is: all software comes free of charge.
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Trick: Backup and Restore MBR |
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Friday, 27 June 2008 |
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Backing up Master Boot Record (MBR) The MBR is a 512 byte segment on the very first sector of your hard drive composed of three parts: 1) the boot code which is 446 bytes long, 2) the partiton table which is 64 btyes long, and 3) the boot code signature which is 2 bytes long. |
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Secure and anonymous browsing with Firefox and TorK |
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Tuesday, 27 May 2008 |
Often, the web browser that comes with an operating system is not set up in a secure default configuration. Not securing your web browser can lead quickly to a variety of computer problems caused by anything from spyware being installed without your knowledge to intruders taking control of your computer.
A drive-by download is a program that is automatically downloaded to your computer without your consent or even your knowledge. Unlike a pop-up download, which asks for assent, a drive-by download can be initiated by simply visiting a Web site or viewing an HTML e-mail message. Very often script languages like Java and Java Script are involved. In the past, badly configured PHP bulletin board applications are being used to plant malicious JavaScript on web forums. The JavaScript was used to infect the local machine with Trojan and viruses. People are trying to infect machines into zombie clients and bring them under the control of hackers.
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Trick: The Perfect Server - Fedora 9 |
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Wednesday, 14 May 2008 |
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This is a detailed description about how to set up a Fedora 9 server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable) with PHP5 and Ruby, Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Dovecot POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of Fedora 9, but should apply to the 64-bit version with very little modifications as well. |
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Tip: Anatomy of Security-Enhanced Linux |
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Tuesday, 13 May 2008 |
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Linux® has been described as one of the most secure
operating systems available, but the National Security Agency (NSA) has taken Linux
to the next level with the introduction of Security-Enhanced Linux (SELinux).
SELinux takes the existing GNU/Linux operating system and extends it with kernel and
user-space modifications to make it bullet-proof. If you're running a 2.6 kernel
today, you might be surprised to know that you're using SELinux right now! This
article explores the ideas behind SELinux and how it's implemented.
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Tip: The Perfect Server - Ubuntu Hardy Heron |
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Tuesday, 29 April 2008 |
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This tutorial shows how to set up an Ubuntu Hardy Heron (Ubuntu 8.04 LTS) based server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of Ubuntu 8.04 LTS, but should apply to the 64-bit version with very little modifications as well. |
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