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Sysadmin

A collection of 9 posts

open source

Installing Rocketchat Self Hosting Debian 9.6 (Ubuntu) with Docker

https://rocket.chat/docs/installation/manual-installation/debian/ Follow standard install steps First follow the Rocket install guide for Debian. Install Nginx sudo apt install nginx -y # Enable and start nginx sudo systemctl enable

Christopher Simpson
open source

High Availability with HAproxy , Apache2 and MariaDB Galera Cluster Ubuntu 18.04 LTS & Centos 7

In this post we create a highly available web & database cluster using a compbination of: MariaDB Galera Cluster of three nodes on Ubuntu 18.04 HAproxy for load balancing (requests enter at

Christopher Simpson
programming

How to set-up .app domains with ssl and apache

Get a new shiny .app domain name Google sells .app domains, and many other registrars. The key thing with .app domains is they must be served over https for browsers to load it.

Christopher Simpson
programming

Quickest way to find active php.ini

How to quickly find active php.ini file? You're administering a system you're not familir with (?) and need to quikly know the location of the active `php.ini` file. Simply run from command

Christopher Simpson
Sysadmin

How to host ghost 1.x with multiple blog instances

Requirements: Install ghost without ghost cli (it's not needed for this) We use sqlite3 (but you can easily change this for mysql if needed Apache2 with mod_macro installed & enabled The steps

Christopher Simpson
Sysadmin

Upgrading from old ghost to ghost 1.x without CLI

This builds on the super helpful posts by Kevin, and Tom post on the same topic. We run multiple light-traffic ghost instances at Karma Computing, so the Ghost CLI isn't really helpful for

Christopher Simpson
MongoDB

How to create MongoDB Replica Set with Authentication Ubuntu 16.04

How to make a MongoDB replica set A three member mongodb replica set on three separate hosts with authentication. Also see official docs. In this tutorial we're putting MongoDB on three different hosts.

Christopher Simpson
security

Installing Mongodb Ubuntu 16.04

See Official MongoDB install docs for all platforms. See getting started with MongoDB for an overview of what MongoDB is. 1. Import Key sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv

Christopher Simpson
MongoDB

Getting Started With Mongodb

The objective of this post is to document getting stated with MongoDB working up to replication (aka replica sets in Mongodb) and eventually sharding to allow arbitrarily adding storage capacity (shards) to the

Christopher Simpson
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