I was working with a coworker today to setup a new Redmine server running on top of Ubunut 12.04 and one of the steps we completed in the process was setting up LDAP authentication in Redmine. Setting up LDAP authentication in Redmine requires the server running Redmine to be joined to the Windows Active Directory domain so I needed a quick way to auth Linux on Active Directory. I have used Centrify in the past and remember it being really easy to setup authentication from any form of Linux to a Windows domain and again it did not disappoint. Follow the directions below to join a Linux server to Active Directory using Centrify.

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The dnsenum.pl Perl script as described in its Perl documentation is a multithreaded script to enumerate information on a domain and to discover non-contiguous IP blocks. So the gist of dnsenum is to gather information about a specific domain using various sources. Information gathered about a domain includes sub domains, associated IP ranges, name servers, mx records, reverse DNS records, hostname IP addresses, and potential vulnerabilities via zone transfers. Below we go into detail regarding the switches available with dnsenum as well as what the command returns by default without and CLI switches.

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I recently moved into Mountain Lion (OSX 10.8) and the first thing I wanted was to install rvm to be able to get ruby 1.9.3 in the machine and be able to do some development with it, but as usual it was not as easy as it seemed (The joke is on me!) so here are the steps I took to install rvm and ruby 1.9.3 in OSX Mountain Lion.

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I have never had an Android device before so pretty much everything is new to me at this point. I will be writing a bunch of articles regarding the basics of Android and more specifically the basics of Android 4.2 on a Google Nexus 7. In the process of working to root the Nexus 7 I needed to backup everything on the Nexus 7 device including everything that has been configured to date. I also have taken a bunch of screenshots that I wanted to make sure got backed up before I proceed with rooting it. Backing up the Google Nexus 7 is easy but there are a couple steps to make sure you get everything which I have outlined below.

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I use TextMate on Mac OSX Mountain Lion to write notes. One thing I find myself needing a bunch is to insert the current date and time so I can track specific events. For instance if I am writing an article for Question-Defense.com and I am doing the initial formatting in TextMate, which is a typical scenario for me, I might take ten screenshots and I like to note the current date/time in case I get pulled away from the article writing for something else. So having a keyboard shortcut that outputs the current date/time is really valuable so I don’t have to type it out by hand. Below I describe how to install a OSX Service that will provide various date/time outputs via Keyboard Shortcuts. The OSX Service called WordService also provides a bunch of extra awesome services which I briefly touch on below as well.

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