storage

Bookmarks for 30 Dic 2015 through 17 Feb 2016

These are my links for 30 Dic 2015 through 17 Feb 2016:

  • Robtex – We aim to make the fastest and most comprehensive free DNS lookup tool on the Internet
  • OS.js – JavaScript Cloud/Web Desktop Platform – OS.js is a JavaScript web desktop implementation for your browser with a fully-fledged window manager, Application APIs, GUI toolkits and filesystem abstraction.
  • Try Perl: learn the basics of the Perl language in your browser – Welcome to Try Perl ! The window on your right is an interactive Perl interpreter. You can type Perl statements and watch it run. [ via MD http://braindead.tumblr.com/post/136604576916 ]
  • Syncthing – Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.
  • AlessandroZ/LaZagne · GitHub – The LaZagne project is an open source application used to retrieve lots of passwords stored on a local computer. Each software stores its passwords using different techniques (plaintext, APIs, custom algorithms, databases, etc.). This tool has been developed for the purpose of finding these passwords for the most commonly-used software. At this moment, it supports 22 Programs on Microsoft Windows and 12 on a Linux/Unix-Like OS.

Bookmarks for 3 Dic 2015 through 8 Dic 2015

These are my links for 3 Dic 2015 through 8 Dic 2015:

  • minio/mc · GitHub – Minio client (mc) provides a set of tools to work with Amazon S3 compatible cloud storage and filesystems. It has features to resume partial downloads, progress bar and parallel copy. Minio client is written in Golang and released under Apache license v2. [ via http://onethingwell.org/post/134793050379 ]
  • Choosing an HTTP Status Code — Stop Making It Hard | Racksburg – What could be simpler than returning HTTP status codes? Did the page render? Great, return 200. Does the page not exist? That’s a 404. Do I want to redirect the user to another page? 302, or maybe 301.
  • Spinnaker: Global Continuous Delivery – Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence. It provides two core sets of features: cluster management and deployment management. Below we give a top-level overview of these features. [ via http://cloudacademy.com/blog/netflix-spinnaker/ ]

Bookmarks for 6 ago 2015 through 21 set 2015

These are my links for 6 ago 2015 through 21 set 2015:

  • /bin/bash based SSL/TLS tester: testssl.sh – testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws and more. [ via quasi.dot: https://delicious.com/farmando ]
  • Policy NAT for L2L VPN • LearnIOS.com – I kind of missed the wood for the trees here. The static policy NAT is failing because you are trying to map a network 192.168.0.0 to a single IP address 172.20.n.1. However it's just occured, why are you doing policy NAT for the Internet. I tested in lab and if you do this
  • Encrypted Data Bags on Cloud on AWS – Many customers have asked us how they should handle shared secrets, passwords and other sensitive data in Chef and now we have a good solution. With the release of our stable-v4 stack, we introduced Chef 10 to the platform, and with it came data bags. Now with the 3.0 release of the engineyard gem, we can officially support data bags and encrypted data bags. You may be wondering what data bags are, how data bags work or how to implement data bags. This blog post will walk you through the entire process.
  • How to set disk alignment in Linux | Dirty Cache – As you might know, if disk partitions containing Oracle datafiles are not aligned with the underlying storage system, then some I/O’s can suffer from some overhead as they are effectively translated in two I/O’s. If you want more info, google for “EMC disk alignment” and you’ll find plenty of information, explaining the issue.
  • Add Private Route 53 DNS to your AWS VPC | CloudTrek – A really cool feature of Amazon’s Route 53 DNS Management Service is the private hosted DNS zone.  Basically, you get the ability to manage the DNS in your private VPC without setting up your own DNS infrastructure (yuck!) [ Just a friendly reminder Note 1: the resolution is working only inside the VPC. Note 2: if you don't have the AmazonProvidedDNS in your DHCP-OPTION you won't resolve the zone. Note 3: if you are using linux, you can use as DNS 169.254.169.253 it won't work on windows 2008 Ref: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/hosted-zones-private.html http://aws.amazon.com/route53/faqs/ ]

Bookmarks for 23 giu 2015 through 17 lug 2015

These are my links for 23 giu 2015 through 17 lug 2015:

Bookmarks for 22 ott 2014 from 11:21 to 11:34

These are my links for 22 ott 2014 from 11:21 to 11:34:

  • F*EX – File EXchange – F*EX (Frams' Fast File EXchange) is a service to send big (large, huge, giant, …) files from a user A to a user B. The sender uploads the file to the F*EX server using a WWW upload form and the recipient automatically gets a notification e-mail with a download-URL.
  • KandanApp – An Open Source Alternative to HipChat and so much more. Get your own private Chat server in minutes, plus additional features. No credit card required. A fast, secure and stable solution based on Rails. Free and open-source Distributed under the AGPL License.
  • Get MogoChat – Beautiful team chat app written in Elixir & Ember.js
  • Ind.ie — Pulse – Pulse Freedom in sync Pulse (previously Syncthing) replaces proprietary sync and cloud services with something open, trustworthy and distributed. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party, and how it's transmitted over the Internet. Free and Open Software. All source code is available on GitHub. What you see is what you get, there is no hidden funny business. Pulse Source Code For Mac, Windows, Linux, BSD, and Solaris Secure & Private, Free & Open, Easy to Use
  • Enterprise/Authentication/sssd – Ubuntu Wiki – The sssd authentication in Ubuntu works pretty decently. You can use it basically with any directory-style backend, including OpenLDAP, Kerberos, RedHat's FreeIPA and Microsoft's Active Directory. The good part about sssd is that it can be used to log into multiple directory services, so if you have some users in one directory, and the the rest in a different place, this works pretty decently in sssd. You can use it for single-server deployments with plain LDAP with servers or workstations (where you could as well go with pam-ldap and nss-ldap), but also, or especially for more sophisticated setups.

Bookmarks for 22 ott 2014 from 11:37 to 15:55

These are my links for 22 ott 2014 from 11:37 to 15:55:

  • S3QL – nikratio – S3QL is a file system that stores all its data online using storage services like Google Storage, Amazon S3, or OpenStack. S3QL effectively provides a hard disk of dynamic, infinite capacity that can be accessed from any computer with internet access running Linux, FreeBSD or OS-X. S3QL is a standard conforming, full featured UNIX file system that is conceptually indistinguishable from any local file system. Furthermore, S3QL has additional features like compression, encryption, data de-duplication, immutable trees and snapshotting which make it especially suitable for online backup and archival. S3QL is designed to favor simplicity and elegance over performance and feature-creep. Care has been taken to make the source code as readable and serviceable as possible. Solid error detection and error handling have been included from the very first line, and S3QL comes with extensive automated test cases for all its components.
  • Using Foreman, an Opensource Frontend for Puppet – – The recent vulnerability in bash, got me running to update bash. It’s easy when you have maybe one or two Linux servers, but what do you do if you have 100’s or even thousands or servers? You need to use a server configuration and management tool like puppet. However, instead of using the command line, I wanted a GUI tool where I could select the servers or server group and select an action. That is where I found Foreman, A opensource tool which not only handles configuration of your servers but also does provisioning. Foreman is easy to install, opensource, has community based support and a good deal of documentation.
  • Power Up Your Authentication with Open LDAP and Puppet | DataCentred – When you’re busy automating your infrastructure, a recurring theme that causes questions and problems is this: how do you reliably integrate your data (which changes all the time) into your configuration? As a hosting company, we find ourselves needing to tend to an ever-increasing number of devices: servers, switches, routers, hypervisors, you name it. A staple mechanism for centralised authentication is the use of an LDAP server to manage a directory of users and groups and to perform authentication of credentials and privileges on behalf of other devices on the network.
  • Enterprise/Authentication/KerberosServices – Ubuntu Wiki – This article explains a little bit about the Kerberos protocol and how it can be used in Ubuntu. It's not a thorough manual, use more authoritative sources to get more accurate information and update if you see obvious mistakes.

Bookmarks for 8 set 2014 through 9 set 2014

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.

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 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.

Bookmarks for 7 ago 2014 from 14:07 to 14:40

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.