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Security

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

Filed under
Linux
Security
HowTos

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.

A New Vector For Hackers -- Firefox Add-Ons

Filed under
Security

Washington Post: Makers of some of the most popular extensions, or "add-ons," for Mozilla's Firefox Web browser may have inadvertently introduced security holes that criminals could use to steal sensitive data from millions of users.

Owning computers via spelling mistakes

Filed under
Security

infoworld: Symantec researchers have detailed a painfully simple attack method that hackers may already be using to bypass security protections and break into UNIX and Linux-based computers.

OpenOffice worm downloads bunny porn

Filed under
Security

iTNews: A newly-discovered worm targeting OpenOffice attempts to download indecent JPEG images onto compromised Windows, Mac and Linux PCs.

Secure Websites Using SSL And Certificates

Filed under
Security
HowTos

This article will guide you through the entire process of setting up a secure website using SSL and digital certificates. This guide assumes that you already have a fully functional (and configured) server running Apache, BIND, and OpenSSL.

How Safe are Passwords in Internet Explorer, Firefox, and Opera?

Filed under
Security

CybernetNews: I’m sure many of you look kindly upon the fact that your web browser stores your passwords for you. It is no doubt a wonderful time-saving feature, and surely beats having to retype your password every time that it needs to be entered. Have you ever stopped to ask yourself how safe your passwords really are in your browser?

How secure are Linux, Window and Mac OS?

Filed under
Security

Masuran.org: How secure is your favorite operating system? In a time where OS fanatics battle each other on what OS is the best, security is often one of the turning points of discussion. In this article I will be comparing the vulnerabilities listed on Secunia and assessing how serious they are.

Also: What about Linux spyware?

Howto Setup a Lighttpd Chroot Jail Web Server under Debian Linux

Filed under
Linux
Software
Security
Web
Ubuntu
HowTos

Security, speed, compliance, and flexibility--all of these describe LightTPD which is rapidly redefining efficiency of a webserver; as it is designed and optimized for high performance environments.

The potential danger of .desktop files and more

Filed under
Security

In many X11 desktop environments, links to applications are usually represented by files which have the desktop extension in their names. These files, internally, have a format similar to INI files and specify information such as the command to execute and the icon used when representing it.

Mac and Linux attacks set to rise

Filed under
Security

Speaking to consumer PC mag PC Pro, security guru Eugene Kaspersky said that the lukewarm reception of Vista will result in defections to Mac OS and Linux, thus making them more attractive targets for malware writers.

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