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Posts from the ‘Software’ Category

16
Aug

Dell DSET on Ubuntu 10.04 and 12.04


Dell System E-Support Tool (DSET) is an informative tool used by Dell’s support engineers to help diagnose problems for their clients. It is almost a requirement now and Dell usually refuses to continue support without a DSET report.

The problem is that DSET is only supported on Redhat and SuSE Linux and there isn’t any information on how to get it running in Ubuntu. I’ve assembled a rough guide on how to get DSET up and running on Ubuntu 10.04 and 12.04 and it is tested against a Dell R610 and R620.
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18
Jun

Skype 4.0 on Ubuntu Precise (12.04) 64-bit

There is a new version of skype out for Linux, version 4.0 which has interesting changelog entries:

* Much lower chance Skype for Linux will crash or freeze
* chat history loading is now much faster
* …several investments we made in improving audio quality … and improving video call quality
* …extended support for more cameras
* and more

Good enough for me! There is still no true 64 bit binary/package from Skype. The result is that their fake “64 bit” Skype needs an additional 100MB of i386 packages in order for it to run properly.
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4
Jun

Finding and making a network subnet calculator

Doing subnet calculations by hand can be tedious and thankfully there are tools available online to help with that. One in particular Subnet Calculator with a PHP backend was handy and compact.

I’ve sent a few requests asking if I could re-write it to be client side so that it could be used in intranet applications or even possibly be ported as an hand-held application. After a few months of waiting and no response, I repurposed some of their CSS and layout and wrote the javascript equivalent.

Mindwerks’s Subnet Calculator
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15
Dec

A poor man’s https, using ssh to secure web traffic


Sometimes you get a web-hosting environment that only serves non-ssl (http) content. If you need to do any type of management through tools like phpMyAdmin, then you can see the problem with this. All it would take is someone on your network or on the Internet to sniff the traffic and retrieve your username and password, then they too can do a bit of “management” on your site.

If you also have secure shell (SSH) access, then there is a way to manage your site securely by using SSH’s venerable port forwarding (SOCKS). The trick is to tell your management tools to only listen or respond to connections coming in over SSH instead of normal traffic.
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30
Sep

Build environments using chroot

The need was simple enough: make deb packages from source for multiple architectures on the same system. This needed to be done without the overhead of a virtual machine and without using something like launchpad.

I’ve used chroot in the past and it seemed like a perfect fit for the problem. The idea is to have at least two chroot-able directories with the bare essentials from Ubuntu Natty (10.04) to compile and build deb packages.
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