Archivio tag: visualization

Bookmarks for 3 dic 2014 from 13:03 to 13:41

These are my links for 3 dic 2014 from 13:03 to 13:41:

  • git-flow cheatsheet – git-flow are a set of git extensions to provide high-level repository operations for Vincent Driessen's branching model. more This cheatsheet shows the basic usage and effect of git-flow operations
  • Voluntary – […] Our goal is to create open source software that promotes freedom of expression, privacy and the decentralization of power with an eye towards usability […] (Just for OSX at the moment)
  • A Visual Git Reference – This page gives brief, visual reference for the most common commands in git. Once you know a bit about how git works, this site may solidify your understanding.
  • SSH_VPN – Community Help Wiki – This page discusses using SSH to set up SSH-based point to point connections, which can then be used to create routes that create virtual private networks. Note that using SSH in this fashion is not the "best" way to create a permanent, stable VPN. Notably, SSH uses TCP, and TCP over TCP can provide abysmal performance under pathological conditions.
  • VPN over SSH – This how-to is intended to cover the details of how to establish a VPN (Virtual Private Network) over a SSH connection. Starting with open-ssh 4.3, you can now use a ssh connection to set up a VPN. This is technically termed "layer-3 IP-in-SSH tunnelling" and is not using ssh to port forward (ssh -L ) or create a dynamic "application level" forwarding (SOCKS) (ssh -D ). Rather a VPN is established using a SSH connection to create a virtual interface, tun0. Advantages : IMO, this technique is easier to set up then openvpn, especially if you are using a single client. Works with most Linux distributions without the need to install any additional software on the clients. The server only needs openssh-server. This protocol uses udp to transmit tunneled tcp connections resulting in a more stable connection compared with port forwarding (using ssh with the -L or -D options). Disadvantages : As of yet I do not know of a windows client which will use this protocol. If you are needing to set up a VPN with numerous clients I would use openvpn. Although there are several "how-to's" on the web, most of them assume you know something about networking and routing. This page attempts to explain some of the "missing details".

Bookmarks for 26 nov 2014 from 20:02 to 21:26

These are my links for 26 nov 2014 from 20:02 to 21:26:

  • xat/castnow · GitHub – castnow is commandline utility which can be used to playback media files on your chromecast device. It supports playback of local video files, youtube clips, videos on the web and torrents. You can also re-attach a running playback session
  • FnordMetric | Framework for building beautiful real-time dashboards – FnordMetric ChartSQL FnordMetric ChartSQL allows you to write SQL queries that return charts instead of tables. The charts are rendered as SVG vector graphics and can easily be embedded into any website and customized with css in order to build beautiful dashboards FnordMetric Server Fnordmetric Server is a standalone HTTP server application. It exposes a web UI and a HTTP API to run ChartSQL queries and collect timeseries data. You can use fnordmetric-server as a one-stop solution for metric collection and charting. Since fnordmetric-server aims to be a StatsD+graphite competitor, it implements a wire compatible StatsD API. FnordMetric Server can store the collected timeseries data on local disk or in external storage (HBase).
  • imapfilter – lefcha – IMAPFilter is a mail filtering utility. It connects to remote mail servers using the Internet Message Access Protocol (IMAP), sends searching queries to the server and processes mailboxes based on the results. It can be used to delete, copy, move, flag, etc. messages residing in mailboxes at the same or different mail servers. The 4rev1 and 4 versions of the IMAP protocol are supported. IMAPFilter uses the Lua programming language as a configuration and extension language.

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 http://onethingwell.org/post/103638738213 ]
  • 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 from 10:58 to 11:18

These are my links for 26 ago 2014 from 10:58 to 11:18:

  • okvm – Open source KVM over IP technology – The okvm project team in 2005 developed an open source okvm KVM Development Kit – so engineers could cost effectively roll their own integrated KVM over IP control appliances. These okvm KVM Development kits included: one okvm PCI KVM Adapter card the okvm KVM over IP software source code the source information needed to manufacture the okvm PCI KVM Adapter card (circuit diagrams, BOM,PCD layout etc) A number of the KVM PCI cards were produced – sponsored by Opengear. However this project did not find traction in the developer community. So kits are no longer available and development in this branch of the project has stopped. Also Opengear now sells a proprietary KVM over IP solution!
  • Exotic VPS – Listing offshore and exotic VPS hosts in Asia, South America, Europe, Africa
  • Interactive map of Linux kernel
  • Riemann – A network monitoring system – Riemann aggregates events from your servers and applications with a powerful stream processing language. Send an email for every exception raised by your code. Track the latency distribution of your web app. See the top processes on any host, by memory and CPU. Combine statistics from every Riak node in your cluster and forward to Graphite. Send alerts when a key process fails to check in. Know how many users signed up right this second. Riemann provides low-latency, transient shared state for systems with many moving parts.
  • https://nav.uninett.no/#!features – Designed by Scandinavians, this free software makes network administration feel like flying.