networking

Bookmarks for 23 lug 2015 through 28 lug 2015

These are my links for 23 lug 2015 through 28 lug 2015:

Bookmarks for 18 lug 2015 through 19 lug 2015

These are my links for 18 lug 2015 through 19 lug 2015:

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 5 nov 2014 through 14 nov 2014

These are my links for 5 nov 2014 through 14 nov 2014:

Bookmarks for 28 ott 2014 through 29 ott 2014

These are my links for 28 ott 2014 through 29 ott 2014:

Bookmarks for 28 ago 2014 from 09:32 to 11:55

These are my links for 28 ago 2014 from 09:32 to 11:55:

  • Keepalived for Linux – Keepalived is a routing software written in C. The main goal of this project is to provide simple and robust facilities for loadbalancing and high-availability to Linux system and Linux based infrastructures. Loadbalancing framework relies on well-known and widely used Linux Virtual Server (IPVS) kernel module providing Layer4 loadbalancing. Keepalived implements a set of checkers to dynamically and adaptively maintain and manage loadbalanced server pool according their health. On the other hand high-availability is achieved by VRRP protocol. VRRP is a fundamental brick for router failover. In addition, Keepalived implements a set of hooks to the VRRP finite state machine providing low-level and high-speed protocol interactions. Keepalived frameworks can be used independently or all together to provide resilient infrastructures.
  • The BIRD Internet Routing Daemon Project – BIRD is an Internet Routing Daemon designed to avoid all of these shortcomings, to support all the routing technology used in the today's Internet or planned to be used in near future and to have a clean extensible architecture allowing new routing protocols to be incorporated easily. Among other features, BIRD supports: * both IPv4 and IPv6 protocols * multiple routing tables * the Border Gateway Protocol (BGPv4) * the Routing Information Protocol (RIPv2) * the Open Shortest Path First protocol (OSPFv2, OSPFv3) * the Router Advertisements for IPv6 hosts a virtual protocol for exchange of routes between different routing tables on a single host a command-line interface allowing on-line control and inspection of status of the daemon soft reconfiguration[…]
  • How to make MaxScale High Available with Corosync/Pacemaker | MariaDB – MaxScale, an open-source database-centric router for MySQL and MariaDB makes High Availability possible by hiding the complexity of backends and masking failures. MaxScale itself however is a single application running in a Linux box between the client application and the databases – so how do we make MaxScale High Available? This blog post shows how to quickly setup a Pacemaker/Corosync environment and configure MaxScale as a managed cluster resource.

Bookmarks for 26 ago 2014 from 11:20 to 11:53

These are my links for 26 ago 2014 from 11:20 to 11:53:

  • claudioc/jingo – A git based wiki engine written for node.js, with a decent design, a search capability and a good typography.
  • fastmonkeys/stellar – Stellar allows you to quickly restore database when you are e.g. writing database migrations, switching branches or messing with SQL. PostgreSQL and MySQL are supported.
  • Sandstorm Apps – This page is for people who already have a Sandstorm instance set up. Use the buttons below to install apps.
  • Sandstorm – Sandstorm's server-side sandboxing is based on the same underlying Linux kernel features as LXC and Docker. We use the system calls directly for finer-grained control.
  • apenwarr/sshuttle – Transparent proxy server that works as a poor man's VPN. Forwards over ssh. Doesn't require admin. Works with Linux and MacOS. Supports DNS tunneling.

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.

Bookmarks for 5 ago 2014 through 6 ago 2014

These are my links for 5 ago 2014 through 6 ago 2014:

  • Welcome to the NOC Project – Site – Confluence – NOC is the scalable, high-performance and open-source OSS system for ISP, service and content providers.
  • GestióIP – IP address management (IPAM) software – GestióIP is an automated, Web based IPv4/IPv6 address management (IPAM) software. It features powerful network discovery functions and offers search and filter functions for both networks and host, permitting Internet Search Engine equivalent expressions. This lets you find the information that administrators frequently need easily and quickly. GestióIP also incorporates an automated VLAN management system.
  • phpIPAM IP address management | Open-source IP address management – phpipam is an open-source web IP address management application. Its goal is to provide light and simple |P address management application. It is ajax-based using jQuery libraries, it uses php scripts and javascript and some HTML5/CSS3 features, so some modern browser is preferred to be able to display javascript quickly and correctly…
  • LemonLDAP::NG » start – LemonLDAP::NG is an open source Web Single Sign On product (WebSSO) written in Perl, plugged into Apache Web Server. LemonLDAP::NG is a free software, released under GPL license. LemonLDAP::NG is the first SSO software deployed in French administrations. It can handle more than 200 000 users. Many private firms use it too.
  • CoreOS is Linux for Massive Server Deployments – CoreOS is a new Linux distribution that has been rearchitected to provide features needed to run modern infrastructure stacks. The strategies and architectures that influence CoreOS allow companies like Google, Facebook and Twitter to run their services at scale with high resilience.

Bookmarks for 1 apr 2014 from 13:31 to 14:21

These are my links for 1 apr 2014 from 13:31 to 14:21: