geekism and nerdism

Bookmarks for 19 set 2013 through 25 set 2013

These are my links for 19 set 2013 through 25 set 2013:

  • AIXchange: Restricting FTP Access (AIX) – A customer was trying to restrict user access to a particular directory on an AIX system when FTP was used. We came across two good options.
  • FBI Tor Malware Analysis – […] In April 2013, a piece of malware was found embedded in Freedom Hosting's darknet server that would exploit a security hole in a particular web browser and execute code on the user's computer. This code gathered some information about the user and sent it to a server in Virginia and then crashed – it had no obvious malicious intent that is so characteristic of malware. It was therefore theorised that the FBI, who have offices in Virginia, and who have 'form' for writing malware, may have authored it – this now appears to be true. […]
  • Samba4 and OpenChange on a Debian or Ubuntu server – Samba4/Openchange suite promises to provide a complete Active Directory© domain controller with an alternative to a Microsoft Exchange server. Gracefully to the rewrite of MAPI protocol, Outlook can now seamlessly connect to a Linux server for synchronizing and sharing calendars, contacts, tasks and mails.

Bookmarks for 10 set 2013 through 18 set 2013

These are my links for 10 set 2013 through 18 set 2013:

Bookmarks for 20 ago 2013 through 7 set 2013

These are my links for 20 ago 2013 through 7 set 2013:

  • Gmvault: gmail backup – Gmvault is a tool for backing up your gmail account and never lose email correspondence. Gmvault is open source and under GNU-AGPL-3.0. [ via http://www.lffl.org/2013/09/gmvault-effettuare-il-backup-e.html ]
  • SSL Checker – SSL Certificate Verify – SSL Checker This SSL Checker will help you diagnose problems with your SSL certificate installation. You can verify the SSL certificate on your web server to make sure it  is correctly installed, valid, trusted and doesn't give any errors to any of your users. To use the SSL Checker, simply enter your server's hostname (must be public) in the box below and click the Check SSL button. If you need an SSL certificate, check out the SSL Wizard.
  • A Gentoo Linux Advanced Reference Architecture – The book "A Gentoo Linux Advanced Reference Architecture" is meant as a resource displaying the powerful features of many free software solutions that are supported on top of Gentoo Linux. It is a deep-dive approach in many aspects related to processes, supportability, maintainability based on Gentoo Linux system deployments. Unlike the existing, per-application documents that exist on the Internet (and which are a valuable resource to get into the gory details of many applications) and the per-distribution guides that provide information on using that particular distribution, this book will focus more on architecturing IT infrastructure for medium-sized enterprises. Smaller enterprises might find the reference architecture here too expensive or large – however, many services described in the book can be slimmed down into a smaller deployment as well.

Bookmarks for 20 ago 2013 from 02:47 to 02:50

These are my links for 20 ago 2013 from 02:47 to 02:50:

  • WordPress › HyperDB « WordPress Plugins – HyperDB is a very advanced database class that replaces a few of the WordPress built-in database functions. The main differences are: * HyperDB can be connect to an arbitrary number of database servers, * HyperDB inspects each query to determine the appropriate database.
  • ClusterFoundry Blog Highly-Available and Load-Balanced WordPress Cluster – Part 1 – This article explains on how to setup a load-balanced WordPress cluster in a master-slave configuration. The load balancer(HAProxy) sits in front of 2 or more web server nodes (1 Master and 1 Slave) which has the same contents. HAProxy does not only distribute requests, but also checks the health of the services running on the node. If one of the nodes are down, all requests will be redirected to the remaining nodes.
  • Deploying Scalable WordPress – The Official Rackspace Blog – […] The end result is a WordPress site that uses Cloud Load Balancers, Cloud Servers, and Cloud Files to deliver an easily scalable, modular configuration.[…]

Bookmarks for 12 ago 2013 through 16 ago 2013

These are my links for 12 ago 2013 through 16 ago 2013:

  • Epoptes – Epoptes (ΕπÏŒπτης  – a Greek word for overseer) is an open source computer lab management and monitoring tool. It allows for screen broadcasting and monitoring, remote command execution, message sending, imposing restrictions like screen locking or sound muting the clients and much more! It can be installed in Ubuntu, Debian and openSUSE based labs that may contain any combination of the following: LTSP servers, thin and fat clients, non LTSP servers, standalone workstations, NX or XDMCP clients etc. Patches for other distros are welcome.
  • bcache – Bcache is a Linux kernel block layer cache. It allows one or more fast disk drives such as flash-based solid state drives (SSDs) to act as a cache for one or more slower hard disk drives. Hard drives are cheap and big, SSDs are fast but small and expensive. Wouldn't it be nice if you could transparently get the advantages of both? With Bcache, you can have your cake and eat it too. Bcache patches for the Linux kernel allow one to use SSDs to cache other block devices. It's analogous to L2Arc for ZFS, but Bcache also does writeback caching (besides just write through caching), and it's filesystem agnostic. It's designed to be switched on with a minimum of effort, and to work well without configuration on any setup. By default it won't cache sequential IO, just the random reads and writes that SSDs excel at. It's meant to be suitable for desktops, servers, high end storage arrays, and perhaps even embedded.
  • Shuttle | A simple SSH shortcut menu for OS X – A simple SSH shortcut menu for OS X [ via http://etherealmind.com/os-x-shuttle-a-simple-ssh-shortcut-menu-for-os-x/ ]

Bookmarks for 8 ago 2013 through 12 ago 2013

These are my links for 8 ago 2013 through 12 ago 2013:

  • Shuttle | A simple SSH shortcut menu for OS X – A simple SSH shortcut menu for OS X
  • Unix FAQ/shell Index –
  • Portable Shell – Autoconf – When writing your own checks, there are some shell-script programming techniques you should avoid in order to make your code portable. The Bourne shell and upward-compatible shells like the Korn shell and Bash have evolved over the years, and many features added to the original System7 shell are now supported on all interesting porting targets.

Bookmarks for 6 ago 2013 through 8 ago 2013

These are my links for 6 ago 2013 through 8 ago 2013:

  • harelba/q · GitHub – Have you ever stared at a text file on the screen, hoping it would have been a database so you could ask anything you want about it? I had that feeling many times, and I've finally understood that it's not the database that I want. It's the language – SQL. SQL is a declarative language for data, and as such it allows me to define what I want without caring about how exactly it's done. This is the reason SQL is so powerful, because it treats data as data and not as bits and bytes (and chars). The goal of this tool is to provide a bridge between the world of text files and of SQL. q allows performing SQL-like statements on tabular text data.
  • rome2rio: discover how to get anywhere – Discover how to get anywhere by searching plane, train, bus, car and ferry routes [ via http://braindead.tumblr.com/post/57525353007 ]
  • WildFly – JBoss Application Server has a new name… WildFly. – JBoss Application Server has a new name… and it's even @#$%ing faster.

Bookmarks for 24 lug 2013 through 2 ago 2013

These are my links for 24 lug 2013 through 2 ago 2013:

  • wg/wrk · GitHub – wrk is a modern HTTP benchmarking tool capable of generating significant load when run on a single multi-core CPU. It combines a multithreaded design with scalable event notification systems such as epoll and kqueue. [ via http://onethingwell.org/post/56882294128/wrk ]
  • Automate and manage systems installation with Cobbler – Cobbler simplifies system provisioning by centralizing the tasks that are involved in setting up and administering an installation server. This article discusses some of Cobbler's features, how to install it, and how to create a configuration suitable for automatically installing multiple client machines.
  • Cobbler – Linux install and update server – Cobbler is a Linux installation server that allows for rapid setup of network installation environments. It glues together and automates many associated Linux tasks so you do not have to hop between many various commands and applications when deploying new systems, and, in some cases, changing existing ones. Cobbler can help with provisioning, managing DNS and DHCP, package updates, power management, configuration management orchestration, and much more. (And you can integrate with chef or puppet)
  • Redhat I/O Scheduler Configuration in a Virtual Machine. – FATMIN – […] However, because of the fact that ESX is its own built in elevator, the Linux kernel's elevator is not needed, and in fact can hurt disk performance. So its best to disable the elevator inside your linux VMs […] Da controllare comunque dovrebbe andare anche su altre distro
  • RDP with NLA from Linux – Is there a way to connect to a Windows 2008 Remote Desktop Services with NLA from Linux?   Yes! FreeRDP is a fork of Rdesktop. Rdesktop seems to have stopped developement, so a fork is very welcome. NLA is still not in the main release, but it isn't hard to check out a copy from GIT and compile the latest source yourself.

Bookmarks for 19 lug 2013 from 09:18 to 16:13

These are my links for 19 lug 2013 from 09:18 to 16:13:

  • YOURLS: Your Own URL Shortener – YOURLS stands for Your Own URL Shortener. It is a small set of PHP scripts that will allow you to run your own URL shortening service (a la TinyURL or bitly). Running your own URL shortener is fun, geeky and useful: you own your data and don't depend on third party services. It's also a great way to add branding to your short URLs, instead of using the same public URL shortener everyone uses.
  • Decifrare facilmente gli errori di Windows. In italiano – Lo Skyblog – Windows Error Lookup Tool  è una comodissima utility gratuita che ci consente di decifrare facilmente e velocemente i criptici messaggi d’errore di Windows. Il programma non richiede installazione ed è quindi perfetto per essere trasportato in una chiavetta USB, racchiude al suo interno un piccolo database di errori con tanto di spiegazione in italiano.
  • A full-featured logging system with Fluentd ElasticSearch Kibana | Grigio.org – un blog critico su Linux Ubuntu, Tecnologia e altro – There are many open source logging / aggregators / monitoring systems, but I alwais been a bit worried about by their dependencies and features. Fluentd is a small core but extensible with a lot input and output plugins.

Bookmarks for 15 lug 2013 through 17 lug 2013

These are my links for 15 lug 2013 through 17 lug 2013:

  • Regex Crossword – Welcome to the fantastic world of nerdy regex fun! Start playing by selecting one of the puzzle challenges below. There are a wide range of difficulties from beginner to expert. [ via http://braindead.tumblr.com/post/55677544093 ]
  • Generating an SSH key and setting up SSH-agent – Low End Box – A couple of weeks ago I started with the first tutorial in a series of security-related ones. This is the second tutorial in this series. Last time I spoke about SSH and sudo. As Raymii pointed out in the comments, I never mentioned how to actually generate your own SSH key. In this tutorial, I would like to show you how to do that.
  • Search in a Giphy – Giphy – Search Animated Gifs on the Web