These are my links for 8 set 2014 through 9 set 2014:
How to write udev rules – Since the adoption of Kernel 2.6, Linux has used the udev system to handle devices such as USB connected peripherals. If you want to change the behavior when you plug something into a USB port, this section is for you. As an example, we will use a USB thumb drive but these methods should translate to any device handled by udev. As a goal for this exercise we decided to create a symlink and execute a script when a specific thumb drive was loaded.
Persistent iSCSI LUN Device Name – jablonskis – [...] I spent a bit of time figuring out how to get this achieved, so thought it is worth noting for the future reference. I will try to make this quick assuming you have knowledge about iSCSI software initiators in Linux[...]
al3x/sovereign – A set of Ansible playbooks to build and maintain your own private cloud: email, calendar, contacts, file sync, IRC bouncer, VPN, and more.
NSA-proof your e-mail in 2 hours | Sealed Abstract – You may be concerned that the NSA is reading your e-mail. Is there really anything you can do about it though? After all, you don’t really want to move off of GMail / Google Apps. And no place you would host is any better. Except, you know, hosting it yourself. The way that e-mail was originally designed to work. We’ve all just forgotten because, you know, webapps-n-stuff. It’s a lot of work, mkay, and I’m a lazy software developer.
These are my links for 26 ago 2014 through 27 ago 2014:
MySQL active-passive cluster | Your IT goes Linux – We will use the iSCSI Lun defined in our iSCSI cluster as a shared storage and we will run MySQL in active-passive (fail-over) mode using Pacemaker and Corosync cluster engine. The cluster will have to connect to the iSCSI target, mount the iSCSI partition on one node and start a MySQL service which has all its data on this partition.
Perl – [...] Perl has horrors, but it also has some great redeeming features. In this respect it is like every other programming language ever created. This document is intended to be informative, not evangelical. It is aimed at people who, like me: dislike the official Perl documentation at http://perl.org/ for being intensely technical and giving far too much space to very unusual edge cases learn new programming languages most quickly by "axiom and example" wish Larry Wall would get to the point already know how to program in general terms don't care about Perl beyond what's necessary to get the job done. This document is intended to be as short as possible, but no shorter[...]
Linux Performance – This page links to various Linux performance material I've created, including the tools maps on the right, which show: Linux observability tools, Linux benchmarking tools, Linux tuning tools, and Linux observability sar. For more diagrams, see my slide decks below.
AIXchange: Useful Storage Links – Here's an assortment of really good storage-related articles — the majority of which are found on IBM developerWorks — that are worth your time. While some of them are a few years old, they still provide relevant information.
These are my links for 26 ago 2014 from 10:04 to 10:43:
Observium – Observium is an autodiscovering network monitoring platform supporting a wide range of hardware platforms and operating systems including Cisco, Windows, Linux, HP, Juniper, Dell, FreeBSD, Brocade, Netscaler, NetApp and many more. Observium seeks to provide a powerful yet simple and intuitive interface to the health and status of your network. Observium Open Source is available free and open source. Observium Professional adds rapid patches, security fixes and additional features and hardware support for a small yearly license fee.
A Visual Expedition Inside the Linux File Systems – [...] This is an exercise in visualization and kernel exploration. I'm not an expert in either of them but I like file systems and I also find great pleasure in creating visual representations of the things around me [...]
Greyhole – Redundant Storage Pooling using Samba – An application that uses Samba to create a storage pool of all your available hard drives, and allows you to create redundant copies of the files you store, in order to prevent data loss when part of your hardware fails.
PUB1.DE – the largest public and free AS/400 on the internet – Welcome to PUB1.DE – your public AS/400 for everyone. This server is free for use for every registered user, for developers and people interested in IBM iSeries technology. If you need more options, visit RZKH GmbH for affordable options, no matter if you need a single user profile or multiple dedicated servers.
Facette: Time series data visualization and graphing software – Facette is a time series data (called metrics) visualization software, it doesn’t collect nor store these data on its own. Through providers, it inventories other collect/storage tools’ local metrics, and queries those remote storage resources when the user requests time series data to be displayed on a graph.
These are my links for 7 ago 2014 from 14:07 to 14:40:
Adagios by opinkerfi – Adagios is a web based Nagios configuration interface built to be simple and intuitive in design, exposing less of the clutter under the hood of nagios. Additionally adagios has a rest interface for both status and configuration data as well a feature complete status interface that can be used as an alternative to nagios web interface.
enkive.org – An open source email archiving and e-discovery solution.
Sensu | The open source monitoring framework. – [...] Sensu is often described as the “monitoring router”. Essentially, Sensu takes the results of “check” scripts run across many systems, and if certain conditions are met; passes their information to one or more “handlers”. Checks are used, for example, to determine if a service like Apache is up or down. Checks can also be used to collect data, such as MySQL query statistics or Rails application metrics. Handlers take actions, using result information, such as sending an email, messaging a chat room, or adding a data point to a graph. There are several types of handlers, but the most common and most powerful is “pipe”, a script that receives data via standard input. Check and handler scripts can be written in any language, and the community repository continues to grow! [...]
Check_MK – Welcome to the official Homepage of the Check_MK-Project. Check_MK is a collection of extensions for the IT-Monitoring-Kernel of Nagios and together with this, and ideally also with PNP4Nagios and NagVis constitutes a complete IT-Monitoring-System. Check_MK is 100% Open-Source and is available under the terms of the GNU GPL.
open source email archiving solution – Welcome to piler, an advanced open source email archiver Piler is an open source email archiving solution with all the necessary features for your enterprise.