This week's TechMail is Secure temporary files in Linux which discusses how to properly secure temporary files, using things like loopback filesystems, separate partitions for /tmp and using appropriate mount flags. It's pretty simplistic stuff, but can make a huge difference on the security of your system.

A few of us on vendor-sec have decided to pull some cross-vendor resources and we've put together a new informal organization, similar to vendor-sec, but for a more "general public". It's primarily a wiki of various security-related information and a mailing list for OSS vendors and authors to be able …

This came through as this week's techmail, although I'm not sure why.. this was originally posted back in June, but since that was before I started linking to the tips I figured I'd note it here anyways. Tuning the Linux kernel for more aggressive network throughput talks about changing some …

Found this link this morning, to a site with some nice cheatsheets that might be of interest to some people. There are cheetsheats for regexps, PHP, MySQL, CSS, HTML, etc. Single-page cheetsheats that can be used for easy reference. Found them on ilovejackdaniels.com. Might be worth checking out for …

I was bored tonight so I wrote a wrapper for hddtemp for Nagios monitoring. I have a bit of a quirky setup for Nagios where I run the local system checks on remote systems via netcat, ipsvd, and a script to handle the query. This allows me to monitor remote …

There was a vulnerability in libcdio that we sat on for quite a bit because I had accidentally found another way to crash iso-info. Took some time to figure it all out, but we were persistent and Gustavo came up with the fix for all supported libcdio versions.

I don't …

This week's TechMail is Get started with GnuPG, a quick primer on another of my favourite tools: GnuPG. Learn the basics of getting your own GPG keypair created and learn a little bit about fingerprints and signatures and what they all mean.

And if you want to get more into …

This week's TechMail is Use tcpdump for network debugging which goes over some of the basics for, yes, using tcpdump to debug your network (or, if you're curious, just to watch packets sling around your computer).

This week's TechRepublic tip is on Auto-reboot Linux after a kernel panic. It's a pretty simplistic post regarding automatically rebooting the Linux kernel if it encounters a panic. The posts on it are good too, indicating on how to tell the kernel to treat an oops like a panic, thus …

Anyone have any experience with this? I may end up (and will be proposing) that the school my wife works for looks into replacing their (falling apart, IMHO) Win2k server using Active Directory for the domain controller and whatnot to a solution using Samba and OpenLDAP (and I'm presuming kerberos …