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etckeeper at SCaLE 15x

SCaLE accepted my etckeeper talk for SCaLE 15x.

As a system administrator I find it important to track changes in configuration files. Revision control systems have some fatal flaws for tracking /etc/. Luckily Joey Hess' excellent etckeeper wraps several revision control systems and adds the features we need to track our configuration files.

online privacy article for Linux Journal

Linux Journal will be publishing my article about Online Privacy and Security Using a Password Manager in the January edition ( pre-emptive URL ). I adapted my talk ( given at LinuxFest Northwest last year ) for print and concentrated more on the password manager aspect.

Thanks to Linux Journal for accepting my article and publishing it.

Verifying debian images signatures and checksums

Verifying signatures

Debian's CD verification page doesn't explain how to find and use the keyring from the package.

This page will explain how to get the keyring package and use it to verify the gpg signatures for the checksum files if you are running debian. The directions will likely work for any debian-based distribution.

Install debian-keyring ( sudo apt install debian-keyring ). Also install gnupg if it isn't already installed ( see GnuPG sidebar for details ).

AZ FOSS Jobs for PLUG resume presentation followup

After my resume writing presentation at PLUG last week a few people spoke to me about looking for jobs. Some were new, so I don't yet know them by name. Hopefully they show up for Resume Review Night on Tuesday.

Heartbleed for the desktop

Heartbleed is a recently discovered security flaw that affects millions of web servers.

Heartbleed affects enough servers that you should just change all your web site passwords. It allows theft of the server's security key, your credentials, your session with the web site and cookies that can be used to impersonate you.

Because the security certificates could be stolen, there are some extra steps.

scalable log storage and analysis at PLUG

This Thursday Kibana creator Rashid Khan will talk scalable log storage and analysis at PLUG. His talk will cover patterns for log shipping, the problems in traditional centralized log storage, as well as issues with syslog shipping overall. We'll explore the options in the open source space, and define a stack that can be gradually merged into a legacy syslog network, with further optimizations as we later spin down the legacy redundant logging infrastructure.

comparing strings in the shell

While creating materials for my bash class I needed to create some globbing exercises for my students.

It occured to me that a string operator and a comparison to the null string can be used to check if something is a substring of another value.

Sure, you can use Substring Expansion to see if the substring is at a known location such as "Does the value of $foo start with 'bar'?", but length and location are often unknown.

Say, for instance, I wanted to know if it's a word a Dalek would shriek? Easy to do with regular expressions: grep ate$ /usr/share/dict/words.

new modules for shell scripting class

Added several modules to my shell scripting class tonight. Added a couple that had been recently been created. Also added a couple I created tonight. Good work on a couple others as well, but they're not yet going online. Working on a lab exercise now. It should be available for tomorrow.

SCaLE 10x call for proposals ends Thursday

SCaLE's 10x call for proposals is closing Thursday. There is a bit of effort required for speaker registration, so don't wait until Thursday night to start.

Note that SCaLE 10x is a litte earlier in the year than past SCaLE conferences as it's now in January.

SCaLE 10x: January 20-22, 2012 at the Hilton Los Angeles Airport Hotel.

ABLEconf 2012 Call for Participation is open

The ABLEconf call for participation is open. We're looking for technology experts and business leaders to discuss how open technologies can help transform Arizona businesses.

This year we're allowing tutorials, panels, labs and hackfests in addition to presentations. Submit something interesting.

Early bird deadline is 2011Nov20.

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