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DevopsWiki

A wiki of Guides, Scripts, Tutorials related to devops

![Devops tools] (http://i.imgur.com/GFKIa7V.png)

Table of Contents

  1. Vim Cheat Sheet
  2. Bash Guides and Scripts
  3. Python Guides and Scripts
  4. Awk Guides
  5. Automation Guides
  6. Git
  7. Troubleshooting
  8. Backups
  9. Email Server Configuration
  10. Firewall and Monitoring
  11. Miscellaneous
  12. C programming
  13. Data Structures
  14. Code Editors
  15. Video Tutorials
  16. Continuous Integration
  17. Docker

##Vim Cheat Sheet

http://michael.peopleofhonoronly.com/vim/

Bash Guides and Scripts

Real time file syncing daemon with inotify tools

https://github.com/Leo-G/backup-bash

http://techarena51.com/index.php/inotify-tools-example/

Creating Init/Systemd Scripts

http://techarena51.com/index.php/how-to-create-an-init-script-on-centos-6/

Building an RPM on CentOS

http://techarena51.com/index.php/build-rpm-without-breaking-head/

Using BUP a git based software to backup files

http://techarena51.com/index.php/using-git-backup-website-files-on-linux/

Bash Scripting Tutorials for Beginners

http://techarena51.com/index.php/bash-scripting-tutorial-part-2/

http://techarena51.com/index.php/a-beginners-guide-to-bash-scripting/

Bash process substitution

http://redpill-linpro.com/sysadvent/2015/12/12/bash-process-substitution.html

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Python Guides and Scripts

Python 3 String Encoding and Formatting

http://www.diveintopython3.net/strings.html

Building system monitoring apps in Python with Flask

http://techarena51.com/index.php/how-to-install-python-3-and-flask-on-linux/

Building a Database driven RESTFUL API in Python 3 with Flask

http://techarena51.com/index.php/buidling-a-database-driven-restful-json-api-in-python-3-with-flask-flask-restful-and-sqlalchemy/

Building Database driven apps with MySQL or PostgreSQL using Python and SQLAlchemy ORM

http://techarena51.com/index.php/flask-sqlalchemy-tutorial/

http://techarena51.com/index.php/flask-sqlalchemy-postgresql-tutorial/

Token based Auth

http://techarena51.com/index.php/json-web-token-authentication-with-flask-and-angularjs/

Script to automatically Scaffold a database driven CRUD app in python

https://github.com/Leo-G/Flask-Scaffold

Psutil a cross-platform Python library for retrieving information on running processes and system utilization (CPU, memory, disks, network)

https://pypi.python.org/pypi/psutil

Automating web testing with Selenium

http://techarena51.com/index.php/install-selenium-linux-automate-web-tests/

Continously deploying your Flask/Python code to your Linux production server with GitHub webhooks

http://techarena51.com/index.php/flask-github-webhook-handler/

Understanding Threading and the Global Interpreter Lock

http://jessenoller.com/blog/2009/02/01/python-threads-and-the-global-interpreter-lock

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Awk Guides

An introduction to Awk

http://www.grymoire.com/Unix/Awk.html

Text Processing examples with Awk

http://techarena51.com/index.php/advance-text-processing-examples-awk/

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##Automation Guides

Automating Server Configs with Puppet

http://techarena51.com/index.php/a-simple-way-to-install-and-configure-a-puppet-server-on-linux/

Automating Server Configs with the SaltStack

http://techarena51.com/index.php/getting-started-with-saltstack/

Using Foreman, an Opensource Frontend for Puppet

http://techarena51.com/index.php/using-foreman-opensource-frontend-puppet/

Using StackStorm, an Opensource platform for integration and automation across services and tools.

https://docs.stackstorm.com/overview.html#st2-overview

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##Git

Getting started

http://rogerdudler.github.io/git-guide/

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Troubleshooting

Troubleshooting Linux Server Memory Usage

http://techarena51.com/index.php/linux-memory-usage/

Troubleshooting Programs on Linux with Strace

http://www.redpill-linpro.com/sysadvent//2015/12/10/introduction-to-strace.html

Using Watch to continously Monitor a command

http://techarena51.com/index.php/watch-command-linux/

Troubleshooting with Tcpdump

http://techarena51.com/index.php/tcpdump-examples-to-capture-passwords/

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Backups

BUP Git based Backup

http://techarena51.com/index.php/using-git-backup-website-files-on-linux/

Real time Backup Script written in bash

https://github.com/Leo-G/backup-bash

MySQL incremental Backup with Percona

https://www.percona.com/doc/percona-xtrabackup/2.3/xtrabackup_bin/incremental_backups.html

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Email Server Configuration

Postfix configuration

http://techarena51.com/index.php/configure-secure-postfix-email-server/

Fail2ban configuration

http://techarena51.com/index.php/confiigure-fail2ban-block-brute-force-ips-scanning-postfix-logs/

Troubleshooting

http://techarena51.com/index.php/postfix-configuration-and-explanation-of-parameters/

Adding DMARC records

http://techarena51.com/index.php/what-is-dmarc-and-how-you-can-add-it/

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Firewall and Monitoring

Configuring a Firewall for linux with CSF and LFD

http://techarena51.com/index.php/how-to-configure-and-install-config-server-firewall-login-failure-daemon/

Monitoring Linux Servers with Monit

http://techarena51.com/index.php/how-to-install-monit-monitoring-service-on-your-linux-vps-server/

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Miscellaneous

Linux System Calls

http://www.digilife.be/quickreferences/qrc/linux%20system%20call%20quick%20reference.pdf

Getting Started with Git

http://www.vogella.com/tutorials/Git/article.html#gitdefintion_tools1

Linux one second boot

http://events.linuxfoundation.org/sites/events/files/slides/praesentation.pdf

Installing a VPN server on Linux

http://techarena51.com/index.php/how-to-install-an-opensource-vpn-server-on-linux/

Installing Ruby on Rails on Linux

http://techarena51.com/index.php/how-to-install-ruby-ruby-on-rails-and-phusion-passenger-on-centos/

Installing Gunicorn on Linux

http://techarena51.com/index.php/deploy-flask-on-ubuntu/

Installing Django on Linux

http://techarena51.com/index.php/install-django-1-7-on-linux/

The Twelve-Factor Software-As-A-Service App building methodology

http://12factor.net/

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C programming

File I/O

http://gribblelab.org/CBootcamp/10_Input_and_Output.html

C Programming Boot Camp

http://gribblelab.org/CBootcamp/

Beej's Guide to Network Programming

https://beej.us/guide/bgnet/

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Data Structures

Stack vs Heap

http://gribblelab.org/CBootcamp/7_Memory_Stack_vs_Heap.html

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Code Editors

Brackets

http://brackets.io/

Sublime Text

http://www.sublimetext.com/

Atom

https://atom.io/docs/v0.196.0/getting-started-why-atom

Vim

http://www.vim.org/about.php

GNU Emacs

https://www.gnu.org/software/emacs/

Notepad++

https://notepad-plus-plus.org/

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Video Tutorials

Sys Admin

http://sysadmincasts.com

Youtube Channel

https://www.youtube.com/channel/UCvA_wgsX6eFAOXI8Rbg_WiQ/feed

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Continuous Integration

Jenkins

http://www.vogella.com/articles/Jenkins/article.html

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Docker

Docker

http://blog.flux7.com/topic/docker

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