JefStat

# This will automatically install the Sumo Logic collector on AWS Elastic
# Beanstalk instances. Add this to the .ebextensions folder in your app root
# To add or remove tracked files, simply add or remove source hashes to the
# sources array.
packages:
  rpm:
    SumoCollector: https://collectors.sumologic.com/rest/download/rpm/64

services:
  sysvinit:

p0bailey

1. A Comprehensive Guide to Terraform.

2. Why we use Terraform and not Chef, Puppet, Ansible, SaltStack, or CloudFormation.

3. An Introduction to Terraform.

4. How to manage Terraform state

5. How to create reusable infrastructure with Terraform modules

joewiz

On Tue Oct 27, 2015, history.state.gov began buckling under load, intermittently issuing 500 errors. Nginx's error log was sprinkled with the following errors:

2015/10/27 21:48:36 [crit] 2475#0: accept4() failed (24: Too many open files)

2015/10/27 21:48:36 [alert] 2475#0: *7163915 socket() failed (24: Too many open files) while connecting to upstream...

An article at http://www.cyberciti.biz/faq/linux-unix-nginx-too-many-open-files/ provided directions that mostly worked. Below are the steps we followed. The steps that diverged from the article's directions are marked with an *.

1. * Instead of using su to run ulimit on the nginx account, use ps aux | grep nginx to locate nginx's process IDs. Then query each process's file handle limits using cat /proc/pid/limits (where pid is the process id retrieved from ps). (Note: sudo may be necessary on your system for the cat command here, depending on your system.)
2. Added fs.file-max = 70000 to /etc/sysctl.conf

gunjanpatel

Amazon ec2 LAMP and FTP installation and setup

Tutorial: Installing a LAMP Web Server on Amazon Linux

Go through this amazon link http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-LAMP.html

Associate and Elastic IP address to your EC2 instance.

tsileo

#!/bin/bash
export AWS_ACCESS_KEY_ID=YOUR_ACCESS_KEY
export AWS_SECRET_ACCESS_KEY=YOUR_SECRET_ACCESS_KEY
export PASSPHRASE=YOU_PASSHRASE

# directories, space separated
SOURCE="/home/thomas/backup /home/thomas/bin /home/thomas/documents"
BUCKET=s3+http://mybucket
LOGFILE=/home/thomas/tmp/duplicity.log
# set email to receive a backup report

mtigas

Client-side SSL

For excessively paranoid client authentication.

---

Updated Apr 5 2019:

because this is a gist from 2011 that people stumble into and maybe you should AES instead of 3DES in the year of our lord 2019.

some other notes: