Topic “Linux”

Make any printer AirPrint compatible

Use CUPS, Avahi, and a python script to print from iOs devices

At home, we were missing the ability to print from our iPad or iPhones. While I'm not an OS zealot (anymore), I did upgrade to an iPhone last month, and have had an iPad for a while now. They're very useful for casual computing, checking email, browsing. But if we needed to print something, it was a hassle to fire up a laptop or desktop computer to use our networked printer.

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Virginia Tech professor cuts PC energy usage

Granola software reduces energy usage 30%

I came across this link about a Virginia Tech professor that wrote a program to reduce energy wasted by computers. On the face of it, it sounds a bit smarter than the usual power management techniques that shut off parts or all of a computer when its not being used. It claims up to 30% reduction in power, which I expect translates into noticeably longer times between batter charges, if you use it on a laptop.

Fixing Realtek ethernet driver on Linux

Make sure you are using the right module

When my 3 year old son pressed the sleep button on my keyboard, we discovered that it actually sends my Archlinux desktop to sleep. Who would have thunk it? What was more annoying is that when the machine woke up, the network connection did not come back.

Poking around in the log files, I saw lines like the following lines which lead me to believe it was a NetworkManager problem.

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A Sneak Peek at Upcoming Linux Mint 11

Linux Mint, an ubuntu derivative, posted a preview of what's included in there next release, Linux Mint 11. It sounds like they are positioning themselves as a nice alternative for users who don't like Unity or the new Gnome interface, and users who can't run the newfangled UIs.

Printing with CUPS and KDE4

Uncomment one line in cups.conf to fix this error

Printing in linux has always been a particular headache for me, and probably many users.There is a myriad of systems that have to talk to each other to get it to work. You have CUPS which takes care of making your computer talk to the printer, various packages like foomatic and ghostscript that you may or may not need so that CUPS can talk to the printer itself. Then you have the printer configuration frontends under GNOME, KDE, or whatever desktop environment you might be running that, in theory, hook the applications you use up with CUPS.

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Using Dropbox on KDE

Dropbox is a handy service to automatically synchronize files between different computers.  Each computer requires a client that connects to the service and monitors the dropbox folder for changes.  It's free for up to 2GB of storage and works well.

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Link: Nginx Hacking Tips

This is a good overview of common configurations comparing nginx's syntax to apache's.  Once you get used to it, I think nginx syntax is easier to understand, and it reads more like an actual script or program.  I've been using nginx to host SoccerBlogs.net for 3 months now and its been very solid.  In fact, it coupled with moving mysql to its own slice, forced me to focus some attention on SQL query bottlenecks.

My Desktop is a little "Freer"

But really, what does that get me?

It was with a bit of a smirk that I read about Ubuntu user's pains in upgrading to Karmic, the latest release. Ubuntu's previous release upgrade or two had killed my networking, to the point that I had to reinstall the whole OS and I instead switched to Arch Linux. Arch has a rollng release cycle, which means you can get the latest and greatest much quicker than a lot of other Linux distributions, and it tries to "Keep it Simple"

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Using RewriteMap for many URL redirects.

Migrating platforms can lead to broken links on your website.  If you've cultivated links from other sites or if search engines send a lot of visitors your way, you'll want to redirect users from the old links to the new.  Many content management systems have facilities for manually maintaining redirects, but you can also do this with Apache.  The big benefit of using Apache is that such visitors won't hit your CMS until they get to the correct page.

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Pidgin release adds voice and video chat.

On Windows and Linux, Pidgin is my IM client of choice. On Mac I use Adium, which is sort of related to it since they share some common libraries under the hood, even though there is a Pidgin client for OS X. I'm optimistic that the latest release might make it easier to use voice and/or video chat online. I don't do that often enough because its usually a headache, even with iChat. iChat used to work fine but with Verizon's FIOS router, I have to put my computer in the DMZ outside the router's firewall to get it to work.

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