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Step By Step Ubuntu 16.04 (Xenial Xerus) LAMP Server Setup

(via www.ubuntugeek.com)

In around 15 minutes, the time it takes to install Ubuntu Server Edition, you can have a LAMP (Linux, Apache, MySQL and PHP) server up and ready to go. This feature, exclusive to Ubuntu Server Edition, is available at the time of installation.The LAMP option means you don’t have to install and integrate each of the four separate LAMP components, a process which can take hours and requires someone who is skilled in the installation and configuration of the individual applications.

Install Ganglia on Ubuntu 15.10 Server (Wily Werewolf)

(via www.ubuntugeek.com)

Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of clusters. It leverages widely used technologies such as XML for data representation, XDR for compact, portable data transport, and RRDtool for data storage and visualization. It uses carefully engineered data structures and algorithms to achieve very low per-node overheads and high concurrency.

Nagios Core Configuration Using NagiosQL (Web Interface)

(via www.ubuntugeek.com)

NagiosQL is a web based administration tool designed for Nagios, but might also work with forks. It helps you to easily build a complex configuration with all options, manage and use them. NagiosQL is based on a webserver with PHP, MySQL and local file or remote access to the Nagios configuration files

File Lock Contention

(via blog.nexcess.net)

Great step by step explanation of investigating file lock contentions, specifically when dealing with php and sessions.

OpenSSH SFTP chroot() with ChrootDirectory

(via www.debian-administration.org)

The upcoming version of OpenSSH (4.8p1 for the GNU/Linux port) features a new configuration option : ChrootDirectory. This has been made possible by a new SFTP subsystem statically linked to sshd.

sandboxed Python development environments with pythonbrew

(via suvashthapaliya.com)

As developers get started with a project, they prefer having total control over the development environment, as much as possible to perfectly match the deployment environment. The other strong requirement, especially in a team with mutiple developers would be to work on exactly replicated environments.

Python Ecosystem - An Introduction

(via mirnazim.org)

When developers shift from PHP, Ruby or any other platform to Python, the very first road block they face (most often) is a lack of an overall understanding of the Python ecosystem. Developers often yearn for a tutorial or resource that explains how to accomplish most tasks in a more or less standard way.

What follows is an extract from the internal wiki at my workplace, which documents the basics of the Python ecosystem for web application development for our interns, trainees and experienced developers who shift to Python from other platforms.

mysqlbinlog Tips and Tricks

(via www.pythian.com)

So, you have a binlog. You want to find out something specific that happened inside of it. What to do? mysqlbinlog has some neat features, which I thought we would look at here.

I should first explain what mysqlbinlog really is. It is a tool that lets you analyze and view the binlogs/relaylogs from mysql, which are stored in binary format. This tool converts them to plaintext, so that they’re human-readable.

NFS for clusters

(via billharlan.com)

Here are notes I've found useful for configuring reliable shared disk on a linux cluster...

host map: lookup (domain): deferred

(via www.brandonhutchinson.com)

This Sendmail error--also seen as "Transient parse error -- message queued for future delivery" or "Name server: domain: host not found"--indicates that Sendmail encountered a problem with one of its DNS resource record lookups of the destination domain.

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