This is a simple guide to getting up and running with kubernetes on AWS.
Install the aws CLI.
brew install awscli
Setup a profile in the aws CLI and enter some credentials, I create an IAM account in my AWS and give it admin, then generate some credentials.
| service postgresql stop # Stop the server first | |
| rm -rf /var/lib/postgresql/9.4/main # Remove the data directory | |
| envdir /etc/wal-e.d/env /usr/local/bin/wal-e backup-fetch /var/lib/postgresql/9.4/main LATEST # Fetch the backup | |
| restore_command = '/usr/bin/envdir /etc/wal-e.d/env /usr/local/bin/wal-e wal-fetch %f %p' # Create recovery.conf inside data directory | |
| service postgresql start # Start the server |
| { | |
| "AWSTemplateFormatVersion": "2010-09-09", | |
| "Description": "CoreOS on EC2: http://coreos.com/docs/running-coreos/cloud-providers/ec2/", | |
| "Mappings": { | |
| "RegionMap": { | |
| "ap-northeast-1": { | |
| "AMI": "ami-f9b08ff8" | |
| }, | |
| "ap-southeast-1": { | |
| "AMI": "ami-c24f6c90" |
| Dir { | |
| ArchiveDir "./debian"; | |
| CacheDir "./cache"; | |
| }; | |
| Default { | |
| Packages::Compress ". gzip bzip2"; | |
| Sources::Compress ". gzip bzip2"; | |
| Contents::Compress ". gzip bzip2"; | |
| }; | |
| TreeDefault { |
This is a guide on how to email securely.
There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.
| { | |
| "rootDir": "{{ salt['pillar.get']('aptly:rootdir') }}", | |
| "downloadConcurrency": 4, | |
| "architectures": [], | |
| "dependencyFollowSuggests": false, | |
| "dependencyFollowRecommends": false, | |
| "dependencyFollowAllVariants": false, | |
| "dependencyFollowSource": false, | |
| "gpgDisableSign": false, | |
| "gpgDisableVerify": false, |
| # | |
| # Author: Chris Laws | |
| # | |
| # This saltstack state automates the build and install of the | |
| # current version of the Github master branch for libsodium, | |
| # libzmq, czmq and pyzmq (for both python2 and python3). | |
| # | |
| # This state is part of a suite of states I use to recreate my | |
| # development machine and keep it up to date. It contains some | |
| # configuration instructions that slightly beyond the common |
A simple Ghostscript command to merge two PDFs in a single file is shown below:
gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combine.pdf -dBATCH 1.pdf 2.pdfInstall Ghostscript:
Type the command sudo apt-get install ghostscript to download and install the ghostscript package and all of the packages it depends on.
| # Heavily depends on: | |
| # libqrencode (fukuchi.org/works/qrencode/) | |
| # paperkey (jabberwocky.com/software/paperkey/) | |
| # zbar (zbar.sourceforge.net) | |
| # Producing the QR codes: | |
| # Split over 4 codes to ensure the data per image is not too large. | |
| gpg --export-secret-key KEYIDGOESHERE | paperkey --output-type raw | base64 > temp | |
| split temp -n 4 IMG | |
| for f in IMG*; do cat $f | qrencode -o $f.png; done |