*[Understanding IP Addressing: Everything you ever wanted to know](https://web.archive.org/web/20080401000000*/http://www.3com.com/other/pdfs/infra/corpinfo/en_US/501302.pdf)(PDF)
*[Understanding IP Addressing: Everything you ever wanted to know](http://pages.di.unipi.it/ricci/501302.pdf)(PDF)
*[Survive The Deep End: PHP Security](https://phpsecurity.readthedocs.org/en/latest/)
* Symfony Framework
*[The Symfony Book 2.x](http://symfony.com/doc/2.8/book/)
*[The Symfony Book 3.x](http://symfony.com/doc/master/book/)
*[The Symfony Book 2.x](https://symfony.com/pdf/Symfony_book_2.8.pdf)
*[The Symfony Book 3.x](http://symfony.com/doc/current/index.html)
*[Using Libsodium in PHP Projects](https://paragonie.com/book/pecl-libsodium)
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@@ -1694,7 +1694,7 @@ For resources on Angular, Backbone, D3, Dojo, Ember, Express, jQuery, Knockout,
*[Creating HTML Reports in PowerShell](https://www.gitbook.com/book/devopscollective/creating-html-reports-in-powershell/details)(PDF,ePub,HTML)
*[DevOps: The Ops Perspective](https://www.gitbook.com/book/devopscollective/devops-the-ops-perspective/details)(PDF, ePub, MOBI)
*[Ditch Excel: Making Historical & Trend Reports in PowerShell](https://www.gitbook.com/book/devopscollective/ditch-excel-making-historical-trend-reports-in-po/details)(PDF, ePub, MOBI)
*[Ditch Excel: Making Historical & Trend Reports in PowerShell](https://www.gitbook.com/book/devopscollective/ditch-excel-making-historical-trend-reports-in-po/details)(PDF, ePub, MOBI)
*[Introduction to PowerShell for Unix People](https://www.gitbook.com/book/devopscollective/a-unix-person-s-guide-to-powershell/details)(PDF, ePub, HTML)
*[Layman’s Guide to PowerShell 2.0 remoting](http://www.ravichaganti.com//blog/wp-content/uploads/2010/12/A%20layman's%20guide%20to%20PowerShell%202.0%20remoting-v2.pdf)(PDF)
*[Python Scripting for Computational Science](http://info.baustatik.uni-due.de/Lehre/CM-AOS/Scripts/Abaqus/Python%20Scripting%20for%20Computational%20Science.pdf) - Hans Petter Langtangen (PDF)
*[Python Standard Library](http://effbot.org/librarybook/) - Fredrik Lundh
*[Snake Wrangling For Kids](http://www.briggs.net.nz/snake-wrangling-for-kids.html)(3.x)
*[Test-Driven Web Development with Python](http://chimera.labs.oreilly.com/books/1234000000754/index.html)(3.3 - 3.x)
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@@ -2097,7 +2096,7 @@ For resources on Angular, Backbone, D3, Dojo, Ember, Express, jQuery, Knockout,
### Standard ML
*[Programming in Standard ML '97](http://homepages.inf.ed.ac.uk/stg/NOTES/) - Stephen Gilmore, University of Edinburgh
*[Programming in Standard ML, Draft](http://www.cs.cmu.edu/~rwh/smlbook/) - Robert Harper
*[Programming in Standard ML, DRAFT](http://www.cs.cmu.edu/~rwh/isml/book.pdf) - Robert Harper