Bookmarks for 29 Mar 2016 through 8 Apr 2016

These are my links for 29 Mar 2016 through 8 Apr 2016:

  • VMware: Add PortGroup to all hosts in cluster with PowerCLI – […]
    Today we configured a new VLAN on the physical switches, now we need to configure a portgroup with vlan id on multiple ESX hosts in our cluster. To do this by hand it will cost 3 minutes per host, to script this.. you configure this in 10 seconds![…]
  • Creating Active Directory Accounts – Microsoft stores a quoted password in little endian UTF16 base64 encoded.
  • LVM Loopback HOW-TO | Anthony’s Blog – This is a simple tutorial on setting up LVM on loopback devices, I’ve used it a few times for creating dynamic virtual disks; it came in particularly handy when archiving NEXRAD radar data for my radarwatchd project – using up all your inodes on several hundreds of thousands of 15Kb files doesn’t sound like my idea of fun. Creating a virtual volume with reiserfs was a particularly handy solution in this case.
  • Retroshare – Retroshare creates encrypted connections to your friends. Nobody can spy on you. Retroshare is completely decentralized. This means there are no central servers. It is entirely Open-Source and free. There are no costs, no ads and no Terms of Service.

Bookmarks for 15 nov 2014 through 26 nov 2014

These are my links for 15 nov 2014 through 26 nov 2014:

  • Charted – Charted is a tool for automatically visualizing data, created by the Product Science team at Medium. Give it the link to a data file and Charted returns a beautiful, shareable chart of the data. We built Charted with a few core principles in mind: Charted does not store any data. It only fetches and visualizes what the link provides. It also refetches the data every 30 minutes, so the chart is always up-to-date. Charted does not transform or manipulate data. It displays only and exactly what it receives. Any necessary calculations or adjustments must already be reflected in the data. Charted is not a formatting tool. It is deliberately sparse in features. Charted focuses on getting from the data to the visualization with the fewest decisions possible. As a result, we simplified Charted to just a few options. Here’s a walk-through of those options. [ via ]
  • Simple Amazon Glacier Uploader – Amazon Glacier is a long-term persistent file-storage system for cold data storage. As a GUI wrapper for the Glacier command line tools, The Simple Amazon Glacier Uploader aims to be an upload and download solution that is as durable as your data. SAGU is a single .jar file Glacier interface written in Java for cross-platform accessibility. The use of Java assures that you will have access to your files regardless of your operating system when it is time to retrieve your data.
  • Snapper, The ultimate Snapshot Tool for Linux – Snapper is a tool for Linux filesystem snapshot management. Apart from the obvious creation and deletion of snapshots, it can compare snapshots and revert differences between snapshots. In simple terms, this allows root and non-root users to view older versions of files and revert changes. The features include: Manually create snapshots Automatically create snapshots, e.g. with YaST and zypp Automatically create timeline of snapshots Show and revert changes between snapshots Works with btrfs, ext4 and thin-provisioned LVM volumes Supports Access Control Lists and Extended Attributes Automatic cleanup of old snapshots Command line interface D-Bus interface PAM module to create snapshots during login and logout

Bookmarks for 26 ago 2014 through 27 ago 2014

These are my links for 26 ago 2014 through 27 ago 2014:

  • Regular Expressions – Regular expressions ("regexes") are supercharged Find/Replace string operations. Regular expressions are used when editing text in a text editor, to: check whether the text contains a certain pattern find those pattern matches, if there are any pull information (i.e. substrings) out of the text make modifications to the text. As well as text editors, almost every high-level programming language includes support for regular expressions. In this context "the text" is just a string variable, but the operations available are the same. Some programming languages (Perl, JavaScript) even provide dedicated syntax for regular expression operations.
  • 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 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.

Bookmarks for 13 lug 2014 through 14 lug 2014

These are my links for 13 lug 2014 through 14 lug 2014:

  • Inbox – The next-generation email platform – Inbox uses standard interfaces that you've come to expect from modern APIs. We've taken care of the bugs and edge-cases with character encodings, MIME structures, misformatted socket protocols, and more. Plus, your app will continue to "just work" over the same API as more providers are added.
  • RainLoop Webmail – Modest system requirements, decent performance, simple installation and upgrade, no database required – all these make RainLoop Webmail a perfect choice for your email solution. You are free to use RainLoop Webmail for your personal or non-profit projects.
  • LCMC – The LCMC is a GUI application that configures, manages and visualizes high-availability clusters. Specifically it manages clusters that use one or more of these components: Pacemaker, Corosync, Heartbeat, DRBD, KVM, XEN and LVM.
  • Index of /tig – Tig is an ncurses-based text-mode interface for git. It functions mainly as a Git repository browser, but can also assist in staging changes for commit at chunk level and act as a pager for output from various Git commands.
  • The World’s Most Powerful Browser-Based IDE – Codio – Codio is a powerful cloud and browser based IDE that covers the complete web development cycle; from prototype to deployment