geekism and nerdism

Bookmarks for 25 mag 2012 from 16:47 to 18:38

These are my links for 25 mag 2012 from 16:47 to 18:38:

  • Tony’s VMware Site – I have assembled a package which you can download which will allow you to have Sound, Network, and CD ROM in your Windows For Workgroups 3.11 Virtual Machine.  I also have found a copy of Netscape 4.0 which will work with Windows 3.11.
  • Michele’s blog » Temperature in your server room – At work we bought a couple of Ethernet Boxes from MessPC to keep an eye on our different server room and monitore temperature, humidity and the presence of smoke. These Ethernet boxes are quite neat: they have one network port (10 Mbps half/duplex only, beware) and four RJ-45 ports where you plug-in the sensors you need. We got sensors for temperature, humidity and a smoke alarm.
  • Nagios plugin debugging – This little perl-scripts captures STDOUT and STDERR of a nagios plugin. It writes the captured output to a temp. file. Then the output is returned to Nagios for further processing.

    This allows to track down some problems when using plugins within Nagios. You'll get some information if you have problems accessing files, can view the expanded command-line parameters of service checks, view the performance data returned in a text file, etc.

    It did help me several times – so feel free to try this out.

Bookmarks for 22 mag 2012 through 25 mag 2012

These are my links for 22 mag 2012 through 25 mag 2012:

  • Debian Clusters – This site is a series of step-by-step tutorials for anyone interested in building a Debian cluster. It is geared particularly towards those interested in a Debian cluster for education or research purposes. This site is being written alongside the construction of a real Debian cluster at my institute, starting from the ground (basic networking, DHCP, DNS, authentication) up through installation a queue/scheduler and scientific software.

    However, these tutorials and guides take some assumptions about users for granted, including basic Linux and Debian knowledge (see the Basic Linux Skills page for clarification and pointers to resources). This is not meant as an introduction to Debian or on how to cluster in general – thankfully, there are plenty of helpful tutorials and guides already in existence on those topics. A basic understanding of Debian and cluster technology will aid in following the tutorials.

  • About Acme Systems srl – Acme Systems srl is a company specialising in the development of projects, production and assemblage of low-cost microprocessor boards, developed for rapid prototyping in civil and industrial environments.

    Acme Systems products are designed to be used with Open Source softwares like Linux, GNU C/C++, Python, Java, etc which are available already configured for free downloading from our site and which are immediately operative on our hardware.

    All the Acme Systems products are fully assembled in-site in our headquarter located in Ladispoli a small town 20 km far from Rome, Italy

  • SSH: What and How | Nettuts+ – Many web developers use SSH (“Secure Shell”) on a daily basis to manage their servers, back up files, work remotely, and a myriad of other tasks. Today, I’ll explain what SSH is, do a brief history review, and, lastly, teach you how to set it up on your remote server or even your local network. Let’s get started!

Bookmarks for 21 mag 2012 through 22 mag 2012

These are my links for 21 mag 2012 through 22 mag 2012:

  • Cannot connect to the configuration database. – Running Sharepoint 3.0 on Win2k3 box for some time now.  Today is decides to quit on me.  When you try to go to the site you get this error: "Cannot connect to the configuration database."  Same thing with the Admin site.
  • MOSS MIX: How to Fix Central Administration: Service Unavailable Issue? – While working on MOSS Servers, you all must have faced 2 common issues quite frequently
    You receive a "Cannot connect to the configuration database"
    Service Unavailable
    Basically, the configuration database is where SP stores all information about the SharePoint 2007 installation and the server farm, hence, it is required for the Central Administration to work fine.
  • Il consumo di calorie, i carboidrati e i grassi. | Andrea Beggi – […]Coerente con l’attitudine nerd che mi perseguita da sempre, ho cercato di sviscerare le relazioni tra il movimento e il consumo energetico, tanto per non lasciare nulla di intentato. L’argomento mi interessa e condivido qui i miei appunti, ottenuti da un processo di semplificazione[…]

Bookmarks for 18 mag 2012 through 20 mag 2012

These are my links for 18 mag 2012 through 20 mag 2012:

  • Linux system administrator and Oracle DBA guide: How to use rman backup to duplicate database and change db_name – Environment: OL 5.7 32bit, Oracle database 11.2, sid=orcl
    Objective: duplicate database on the same server then change db_name from orcl to devdb
    concept: duplicate line in /etc/oratab, make orcl and devdb instance, then make everything in password file, spfile/pfile, controlfile, redo log, data file from orcl to devdb, only leave db_name in pfile/spfile as orcl for rman restore from orcl database backup, then use nid to change db_name
  • Linux system administrator and Oracle DBA guide: How to add LUN disk online under CentOS 6.2 – Environment: CentOS 6.2 64bit with multipath connected to HP EVA storage, the LUN disk was LVM disk
    Objective: add a new LUN disk for server online and add into the existing LVM to make the partition size bigger
    scenario: LVM add new lun disk, increase the existing lvm lun disk, increase the existing partition disk such as /dev/sda1
  • Git Client – SmartGit – SmartGit is a graphical client for the Open Source version control systems Git, Mercurial and SVN. It runs on Windows, Mac OS X and Linux.
    SmartGit helps Git and Mercurial beginners to get started quickly and lets advanced users become more productive with its efficient user interface.

Bookmarks for 17 mag 2012 through 18 mag 2012

These are my links for 17 mag 2012 through 18 mag 2012:

  • vikjon’s Linux and Media Center Howto: NSClient++ external vbs script to check MSSQL jobs – This script for NSClient++ checks if there is any failed jobs in MS SQL server. The database connection data is stored in a UDL file.
  • Mobile-OTP: Strong Two-Factor Authentication with Mobile Phones – Mobile One Time Passwords (Mobile-OTP)
    strong, two-factor authentication with mobile phones

    Using static passwords for authentication, as it is commonly done, has quite a few security drawbacks: passwords can be guessed, forgotten, written down and stolen, eavesdropped or deliberately being told to other people.
    A better, more secure way of authentication is the so called "two-factor" or "strong authentication" based on one time passwords. Instead of authenticating with a simple password, each user carries a device ("token") to generate passwords that are valid only one time.

    client for: Standard phone and BlackBerry (J2ME) iPhone Google Android Windows Phone 7 PalmOS webOS Maemo Openmoko Universal Web App Windows Linux MacOS

    Server-Side:
    Mobile-OTP Authentication Server (MOTP-AS)
    Full blown RADIUS server specifically for Mobile-OTP. include:
    – authenticating users by RADIUS (and optionally PAM or Apache)
    – SQL database for user/device configuration
    – Administration Web Interface

  • Open Monitoring Distribution – Wiki – OMD – Welcome to OMD – the Open Monitoring Distribution. OMD implements a completely new concept of how to install, maintain and update a monitoring system built on Nagios.

    OMD avoids the tedious work of manually compiling and integrating Nagios addons while at the same time avoiding the problems of pre-packaged installations coming with your Linux distribution, which are most times outdated and provide no regular updates.

    OMD bundles Nagios together with many important addons and can easily be installed on every major Linux distribution. We provide prebuilt packages for all enterprise Linux distributions and also for some other, such as Ubuntu 11.04.

Bookmarks for 12 mag 2012 through 16 mag 2012

These are my links for 12 mag 2012 through 16 mag 2012:

  • Time Zones – Every Time Zone
    Never warp your brain with time zone math again.

    [via http://www.delicious.com/farmando ]

  • The Debian Administrator’s Handbook – Written by two Debian developers — Raphaël Hertzog and Roland Mas — the Debian Administrator's Handbook started as a translation of their French best-seller known as Cahier de l'admin Debian (published by Eyrolles). It's a fantastic resource for all users of a Debian-based distribution. Accessible to all, this book teaches the essentials to anyone who wants to become an effective and independant Debian GNU/Linux administrator.
  • Oracle Italia by Massimo Ruocchio – Ho finalmente finito di scrivere il manuale Oracle “Welcome to Oracle” disponibile gratuitamente su questo sito sotto licenza Commons Creative (tutti i dettagli nella “nota sul diritto d’autore” all’interno del libro).

    Il manuale si rivolge sia ai principianti che agli utilizzatori di Oracle già esperti.

Bookmarks for 10 mag 2012 through 11 mag 2012

These are my links for 10 mag 2012 through 11 mag 2012:

  • Linux Malware Detect | R-fx Networks – Linux Malware Detect (LMD) is a malware scanner for Linux released under the GNU GPLv2 license, that is designed around the threats faced in shared hosted environments. It uses threat data from network edge intrusion detection systems to extract malware that is actively being used in attacks and generates signatures for detection. In addition, threat data is also derived from user submissions with the LMD checkout feature and from malware community resources. The signatures that LMD uses are MD5 file hashes and HEX pattern matches, they are also easily exported to any number of detection tools such as ClamAV.
  • Shinken | The next Industry Standard in IT Monitoring – Shinken is an open source Nagios® like tool, redesigned and rewritten from scratch. Its main goal is to meet today’s system monitoring requirements while still allowing compatibility to Nagios®
  • Index of /downloads/binaries/latest – These binaries are statically linked using http://landley.net/aboriginal

Bookmarks for 30 apr 2012 through 9 mag 2012

These are my links for 30 apr 2012 through 9 mag 2012:

  • | FusionInventory – FusionInventory is used to inventory your IT assets (get all possible data) to simply manage it, like with GLPI.

    FusionInventory is able to make a complete inventory of computers: hardware and software.

    FusionInventory can scan and discover all devices connected to the network. it use the protocols:

    FusionInventory can inventory devices with SNMP protocol:

    FusionInventory is able to connect to the machine using
    VMware SOAP API to get: Hardware inventory VirtualMachine list

  • jkells/nagios-plugin-ntbackup · GitHub – Nagios Plugin for NTBackup on Windows Server 2003 written in ruby
  • Portable Ruby | YELLOSOFT – Now you can run Ruby from a USB drive!

    AllInOneRuby is a wonderful automated way to generate Ruby binaries. We just made one ourselves for those out there that don't have access to a full Ruby installation. We ran allinoneruby.rb to generate the binaries: version 1.8.6-26 for Windows and 1.8.6.111 for Linux.

    To make it easier to run Ruby scripts, we included some run files. Double click them to begin running Ruby programs. Edit them to point to your scripts.

    Mac users, don't feel left out! Mac OS X 10.4 and later come with Ruby built-in! So copy your Ruby scripts along with this Portable Ruby package onto a USB drive. If you designed your programs correctly, they'll now be runnable on Windows and Linux too!

Bookmarks for 20 apr 2012 through 28 apr 2012

These are my links for 20 apr 2012 through 28 apr 2012:

  • PDFMate Free PDF Converter – Easily Convert PDF to Text/EPUB/Image/HTML/SWF – PDFMate Free PDF Converter is a simple, fast, and free application to convert PDF to Text documents, EPUB eBooks, images, HTML, and SWF files.
    With this all-in-one Free PDF Converter, you will no longer need to worry about problems in copying or editing PDF files. You can now convert PDF to your own files easily within clicks, for further editing or other usage.
    Convert PDF to Text/EPUB/Image/HTML/SWF
    Advanced customization for output files
    Batch conversion; fast and accurately
    Easy to use; multi-languages supported

    [ via http://www.afhome.org/ ]

  • Fact checking – Contribuisci alla verifica dei fatti: dimostra se un argomento e` vero o falso con l'aiuto di altri utenti.
  • ESXi – Come resettare la password di root | vInfrastructure Blog – […] In VMware ESX 3.x resettare la password di root era banale, visto che era scritta in un filesystem Linux in una partizione facilmente modificabile da qualunque distribuzione live. Già con ESX 4.x è cose si erano fatte leggermente più complicate, visto che la service console non risiedeva più su una partizione fisica ma dentro un vmdk.

    Ma con ESXi il livello di difficoltà aumenta per vari aspetti […]

  • Squid rallenta moltissimo con molti client connessi – SpippolAzione.net – […] Avendo dovuto collegare una filiale ad un proxy di un’altra filiale via MPLS mi sono trovato nella situazione per cui lo squid cui salivano di molto il numero di client collegati rallentava moltissimo arrivando verso le mille connessioni ESTABLISHED.
    Non sembrava una questione di banda, ram o carico sul disco, ma proprio il client che fatica a farsi ascoltare da squid, si vede anche usando squidclient… […]

Bookmarks for 14 apr 2012 through 16 apr 2012

These are my links for 14 apr 2012 through 16 apr 2012: