openssl rsa -des3 -in originalkey.pem -out passwordprotectedkey.pem.encrypt

Enter and verify a password of your choosing

1. Install mutt

yum install mutt

2. Zip the file you wish to send

3. Send the file with mutt

mutt -a file.zip -s "Kafka" -- hello@emailaddress.com

Follow the prompts on screen. The tmp file which opens is to add text to the email body. Enter some text, save and close it. Hit Y to send.

1. Find where Java lives:

which java

2. Set JAVA_HOME:

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.131-2.b11.30.amzn1.x86_64/

3. Set the Java path:

export PATH=$PATH:$JAVA_HOME

4. Confirm path is set (as above) correctly:

echo $JAVA_HOME

Access terminal and enter super user (sudo su).

Now enter the following to setup the tunnel:

ssh -D 8080 -C -N -i ~/path/to/privatekey.pem user@50.50.50.50

Open up Firefox and carry out these steps:

1. Menu > Preferences > Advanced > Network > Settings
2. Selet ‘Manual proxy configuration:’
3. Socks Host: 127.0.0.1 Port: 8080
4. OK

Check your IP using http://www.whatismyip.com/ to double check the tunnel is up and running.

1. Install mod_ssl and python

yum -y install mod_ssl python26-virtualenv

2. Change into /opt and clone letsencypt

cd /opt

git clone https://github.com/certbot/certbot letsencrypt

3. Run letsencrypt

/opt/letsencrypt/letsencrypt-auto --debug

Select relevant options when prompted.

4. Setup auto-renew

Auto-renew certificates every Sunday at 6pm:

crontab -e
# Renew Let's Encrypt certificates at 6pm every Sunday
0 18 * * 0 root (/opt/letsencrypt/certbot-auto renew && service httpd restart)