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Alex Avlonitis
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Install RedHat 7 on VMware Workstation 11
#redhat   #vmware   #rhcsa  

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Ruby Gems installation - Certificate Verify Failed (WINDOWS)
If you get an error about the certificate when you try to install ruby gems on Windows, like this one: Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed And nothing has worked, tr...

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Promise is not defined Ubuntu
If you get the " promise is not defined " error when you try to build a js promise on Ubuntu, then check the following: Check your node version -> nodejs -v If its not 4.xx or 6.xx version then upgrade it First remove the old version -> sudo apt-get remove ...

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Useful Heroku commands
Here is a list of my most commonly used Heroku commands for managing a rails application. LOGIN heroku login DATABASES To create a hobby dev free postgres db heroku addons:create heroku-postgresql:hobby-dev To drop the database, if you are using SHARED_DATA...

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Bypassing Costa Wifi Time limit
Costa coffee shops, provide free wifi for their customers for about 2 hours, and then your time limit expires, asking you to register their costa club card(free as well) in order to have unlimited access. Well you could do that, but if you are lazy like me,...

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Pair Programming with TDD, Ruby

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Web Backend programming language of your choice?
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votes visible to Public
16%
Python
5%
Ruby
53%
PHP
11%
.NET (C#, VB)
15%
Other

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Encrypt files with Ruby and OpenSSL
I created this script to make my life easier encrypting files. Google drive, drop box or any other cloud platform don't have an option to password protect or encrypt your files. With this ruby script you will be able to encrypt individual files with a passw...

#ruby #openssl

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Wifi Madness
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OKCupid.com Security holes
1) Stored XSS In their blog at the comment section you could store XSS, and any user/admin who visited that blog post would get XSSed.. The POC : Input break, insert a non existent image and on error it pops up our script to steal session cookies etc... “><...
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