Blocking Spam Intro Facing down the masterminds of unsolicited Internet mailFeb 28, 2007
Spammers charge real money for their dubious services, and hundreds of advertisers are willing to pay. We’ll show you some innovative techniques for controlling and containing spam, including strategies for slowing down spam bots, keeping spammers from getting your address, and separating spam from legitimate email.more »
Charly's Column The Sysadmin’s Daily Grind: ArpalertNov 30, 2006
Corporate policies prohibit the unauthorized connection of hardware to the company network, threatening dire consequences in the case of non-compliance. Fair enough, but how do you actually go about catching somebody trying to plug an illegal laptop into your Ethernet?more »
Crypto Tricks Intro Disk-level cryptography in LinuxOct 31, 2006
Today’s computers are fast enough for some very sophisticated cryptography techniques. We’ll show you how to keep your data safe from the prying eyes of snoops and spies.more »
Charly's Column TUNNELING THE DUTCH BEACHESSep 30, 2006
What does Charly’s recent two-week vacation in Holland have in common with an SSH session? Nothing at all, at first sight. And therein lies a tale.more »
Perl: Link Spam A Perl script protects forums against spamSep 30, 2006
Spammers don’t just send email. They exploit discussion forums and blogs, posting pseudo-messages full of links to dupe search engines. A Perl script cleans up the mess.more »
Charly's Column The Sysadmin’s Daily Grind: HTTP Antivirus ProxyAug 31, 2006
Browsers live in continual danger of compromise by a malicious site. An intermediate proxy combined with a virus scanner can help.more »
Powerful man-in-the-middle attack is now targeting online shopping.
Another high-profile coder says the kernel team needs a kinder, gentler culture.
Bug database has a bug of its own that could allow an intruder to create an unauthorized account.
Report focuses federal resources on achieving universal Internet access.
Leading browser makers say “no” to porous encryption algorithm
Report from the X-Force group says attackers are using TOR to hide their crimes
Future Firefox extensions will be compatible with Chrome.
Better read this if you bought your computer before 2011
Users should upgrade to the new version as soon as possible
Xen project announces a privilege escalation problem for Qemu host systems