Odigie Oseme oseme-techguy

Install JAVA 8

First verify the version of Java being used is not Sun Java 8 SDK

java -version

Check the latest version a build numbers in http://www.oracle.com/technetwork/java/javase/downloads/index.html

For url http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.tar.gz, the variables should be defined as:

Some Time there is a shallow update not allowed issue in your cloned GIT repo.

This means that you have to unshallow your repository. To do so you will need to add your old remote again.

git remote add origin <path-to-old-remote> After that we use git fetch to fetch the remaining history from the old remote (as suggested in this answer).

git fetch --unshallow origin And now you should be able to push into your new remote repository.

How to downgrade a jenkins version by command line

First locate your jenkins.war file, most of time it is located in /usr/share/jenkins
Rename jenkins.war to jenkins.war.old mv jenkins.war jenkins.war.old
Get a version from jenkins example: http://updates.jenkins-ci.org/stable-2.32/latest/jenkins.war sudo wget http://updates.jenkins-ci.org/stable-2.32/latest/jenkins.war
Now start or restart jenkins service sudo service jenkins restart

Setting up a SSL Cert from Comodo

I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.

These are the steps I went through to set up an SSL cert.

Purchase the cert

Knex Setup Guide

Create your project directory

Create and initialize your a directory for your Express application.

$ mkdir node-knex-demo
$ cd node-knex-demo
$ npm init

	// Restify Server CheatSheet.
	// More about the API: http://mcavage.me/node-restify/#server-api
	// Install restify with npm install restify


	// 1.1. Creating a Server.
	// http://mcavage.me/node-restify/#Creating-a-Server


	var restify = require('restify');

	curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.0/install.sh \| bash
	# Exit Terminal and Login to use Command

	~/.nvm/nvm.sh # this line is not needed at all

	nvm install 4.4.5 # Here you can choose your version number

	cd ~
	##If you want to install OpenJDK
	#sudo apt-get update
	#sudo apt-get install openjdk-8-jre-headless -y

	###Or if you want to install Oracle JDK, which seems to have slightly better performance
	sudo add-apt-repository ppa:webupd8team/java
	sudo apt-get update
	sudo apt-get install oracle-java8-installer

	var crypto = require('crypto');
	var key = 'MySecretKey12345';
	var iv = '1234567890123456';
	var cipher = crypto.createCipheriv('aes-128-cbc', key, iv);
	var decipher = crypto.createDecipheriv('aes-128-cbc', key, iv);

	var text = 'plain text';
	var encrypted = cipher.update(text, 'utf8', 'binary');
	encrypted += cipher.final('binary');
	hexVal = new Buffer(encrypted, 'binary');

	import logging
	from sys import stdout

	# Define logger
	logger = logging.getLogger('mylogger')

	logger.setLevel(logging.DEBUG) # set logger level
	logFormatter = logging.Formatter\
	("%(name)-12s %(asctime)s %(levelname)-8s %(filename)s:%(funcName)s %(message)s")
	consoleHandler = logging.StreamHandler(stdout) #set streamhandler to stdout