virtualization

Bookmarks for 17 gen 2013 through 18 gen 2013

These are my links for 17 gen 2013 through 18 gen 2013:

  • winsetupfromusb – Install Windows from USB – Google Project Hosting – Install Windows from USB

    [ via http://gioxx.org/2013/01/18/samsung-nc10-windowsxp/ ]

  • Nuova “vecchia” vita per il Samsung NC10 | Gioxx’s Wall – Il mio vecchio Samsung NC 10 mi ha servito egregiamente negli anni passati e dopo un upgrade di RAM ed una prossima sostituzione disco può ancora rivelarsi un fidato compagno di lavoro per chi non necessita di prestazioni particolarmente elevate. Ad Ilaria basta ad esempio navigare in internet (Firefox), gestire la posta elettronica (Thunderbird) e utilizzare la suite Office di Microsoft, che funziona ancora perfettamente in coppia con l’anziano sempreverde Windows XP, si, proprio lui!

    Ecco quindi cosa fare con una chiave USB da 512 MB o più (ne avete ancora una in giro, ne sono quasi certo, nascosta da qualche parte) che verrà utilizzata una prima volta per installare il sistema ed una seconda per effettuare un backup completo del disco pronto.

  • Changing Windows RDP port | MWalker | Technology Cadre – Sometimes it's nice to change the default listening port of the Remote Desktop Protocol (RDP) service. Running standard services on non-standard is a simple way to avoid scripted attacks against your systems. Turns out changing the RDP port is as simple as a registry setting and a reboot.
  • Portable-VirtualBox | Download of Portable-VirtualBox – Portable-VirtualBox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation.

Bookmarks for 16 gen 2013 through 17 gen 2013

These are my links for 16 gen 2013 through 17 gen 2013:

  • Graylog2 – Free open source self-hosted log management and exception tracking – Simple log management
    Graylog2 enables you to unleash the power that lays inside your logs. Use it to run analytics, alerting, monitoring and powerful searches over your whole log base. Need to debug a failing request? Just run a quick filter search to find it and see what errors it produced. Want to see all messages a certain API consumer is consuming in real time? Create streams for every consumer and have them always only one click away.

    Free and open source
    Graylog2 is free and open source. It is licensed under the GNU General Public License v3 (GPLv3) and all source code can be browsed on GitHub. The web interface is using Ruby On Rails, the server is written in Java.

    Used by professionals
    The first version of Graylog2 was released in July 2010. Since then there has been rapid and continuous development and a number of major releases.

  • Centralizzare i log mediante Elasticsearch, Logstash e Kibana – Mia mamma usa Linux! – Uno dei principali problemi che si rilevano in fase di debug delle anomalie relative ad applicazioni è la frammentazione delle informazioni. Tanti log, buona parte dei quali inutili, sono sparsi ovunque nelle macchine interessate all’erogazione di questo o quel servizio.
    Tipicamente quando si tratta di servizi ripartiti su più macchine è sempre necessario aprire diverse console all’interno delle quali, per ciascuna macchina, il (o i) file di log vengono aperti, filtrati stampati e via così, sino ad ottenere una situazione degna di Sherlock Holmes, in cui solo consumati ed abili detective riescono a trovare l’indizio che sfugge ai più.

    Esiste però una via migliore per gestire enormi quantità di log in una forma centralizzata, facilmente ricercabile e che usi un’interfaccia gradevole. Si tratta della combinazione di tre software: Elasticsearch, Logstash e Kibana.

  • Seminario “Evoluzione della virtualizzazione su Linux”: video uno e due – “Introduzione” e “Virtualizzazione” – Mia mamma usa Linux! – Nella giornata del 29 giugno 2012, presso l’hotel Holiday Inn di Rho si è svolto il secondo seminario di miamammausalinux.org, intitolato quest’anno “Evoluzione della virtualizzazione su Linux“.

    Viste le numerose richieste ricevute e rispettando sempre la filosofia alla base del progetto miamammausalinux.org, il video del seminario viene proposto integralmente nelle sue parti, insieme alla documentazione fornita ai partecipanti.

    Ecco le prime due parti.

Bookmarks for 31 lug 2012 through 2 ago 2012

These are my links for 31 lug 2012 through 2 ago 2012:

  • Magento optimization Howto – Welcome to this Magento hardcore performance howto, I hope it will be useful.
  • Nginx+PHP(FPM)+MySQL+Memcache+eAccelerator on Debian6 | Qi Yang – I recently rebuild my linux image on Linode, so I have to reinstall the LEMP stack again from ground. Last time was probably more than a year ago, with the help of many tutorials from google. So this time I decide to write what I did step by step for my reference in the future […]
  • Magento caching, APC, eAccelerator Memcached, files, sqlite, Vanish, what’s the … happen? | Alex Paradise – Magento is slow! It’s how start most of the article about Magento cache optimization. Yes, Magento is slow and this because of the way the code is written, extreme object oriented. Stackoverflow say “It is written in an Enterprise Java idiom” and there are right. Anyway, we can’t change anything about it and in one side that let us lot of flexibility.
    So, Magento IS SLOW! And what’s can we do? There is many thing to do, many, many. But the most important one is to work around the cache. I am searching for a cache solution and found so much different stuff like APC, eAccelerator, memcached, tmpfs, varnich, lighthttpd, nginx and so on… I will try to explain the different possibilities if found while my research and finished by the one I will implement[…]
  • Do you have any tips for making WorldClient run faster? – Question:

    Do you have any tips for making WorldClient run faster?

  • MySQL-Galera cluster with HAproxy – Sébastien han – When I started working on Open Stack, I had to investigate about the HA of the nova component. Unfortunatly the nova configuration needed a single entry point to connect to the MySQL database. The solution that came to me was to use HAProxy on top of my existing Galera cluster…

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 8 nov 2011 through 14 nov 2011

These are my links for 8 nov 2011 through 14 nov 2011:

  • using mod_auth_kerb and Windows 2000/2003/2008R2 as KDC – This tutorial contains my knowledge about using Apache/mod_auh_kerb and Windows 2000/2003/2008R2 as KDC.
  • Squid kerberos authentication and ldap authorization in Active Directory « Klaubert’s Blog – The squid web cache include a authenticator for kerberos, it is simple to use, but the documentation is not very clear about how to make it work. Below some steps use by me to make Squid 3.0 Stable1 and Squid 2.6 Stable17 authenticate against Active Directory (Windows 2003 Directory Service) and also to make it make the authorization using Ldap. This setup was not used in production environment yet, so its possible to had some problems not seen by me or scalabilities issues.
  • active directory – Getting Squid to authenticate with kerberos and Windows 2008/2003/7/XP – Server Fault – This is setup with Squid 3.0, has also been tested with Squid 3.1 and should work with Squid 2.7. Your Windows user must be a member of the SQUID_USERS group in Active Directory (for this case anyway).

    On the Windows side, Windows XP and Windows 2007 have been tested against Windows 2008, and Windows XP against Windows 2003.

  • Open vSwitch – What is Open vSwitch?

    Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license. It is designed to enable massive network automation through programmatic extension, while still supporting standard management interfaces and protocols (e.g. NetFlow, sFlow, RSPAN, ERSPAN, CLI, LACP, 802.1ag). In addition, it is designed to support distribution across multiple physical servers similar to VMware's vNetwork distributed vswitch or Cisco's Nexus 1000V.

  • 21 Ruby Tricks You Should Be Using In Your Own Code – 2009 Update: This post was written in early 2008 and looking back on it, there are a couple of tricks that I wouldn't recommend anymore – or to which extra warnings need to be added. I've added paragraphs like this where necessary. Enjoy! 🙂

Bookmarks for 5 ago 2011 through 8 ago 2011

These are my links for 5 ago 2011 through 8 ago 2011:

  • VMware: VMware ESXi Chronicles: Ops changes part 6 – Quick troubleshooting tips –
  • VMware: VMware ESXi Chronicles: After you migrate, tips on working with ESXi… – I’ve recently provided a lot of information on how to migrate to ESXi, so today I thought it would be good to go over some post-migration concerns.  Here's my "top 5" list of important ESXi post-migration considerations.
  • Aggiungere drivers a ESXi 4.1 – Mi è capitato recentemente di preparare un server HP Proliant DL360 G6 per un cliente. La macchina era dotata della classica scheda onboard dual port broadcom, ed era stata comprata inoltre una scheda di rete quad-port HP NC365T, basata sul chipset Intel 82580 MAC.<br />
    <br />
    Purtroppo, nemmeno l’ultimo ESXi 4.1 u1 riconosceva la scheda con i drivers in dotazione.<br />
    <br />
    E’ stato dunque necessario procedere all’installazione dei drivers aggiuntivi, seguendo questa procedura:
  • Oltrelinux.com » Firewall con Linux (2003) – Mi hanno chiesto se era possibile rendere disponibile il pocket sui Firewall che allegammo anni fa (Linux&C. n. 34!!)… ho chiesto l’ok al Direttore ed eccoci qua, il PDF (download, 1.8Mb) è stato rigenerato a partire da quello definitivo che è andato in stampa[…]<br />
    <br />
    Grande Linux&C

Bookmarks for 9 giu 2011 through 14 giu 2011

These are my links for 9 giu 2011 through 14 giu 2011:

  • Main Page – WPKG | Open Source Software Deployment and Distribution – WPKG is an automated software deployment, upgrade and removal program for Windows.<br />
    It can be used to push/pull software packages, such as Service Packs, hotfixes, or program installations from a central server (for example, Samba or Active Directory) to a number of workstations.<br />
    It can run as a service to install software in the background (silent install), without user interaction.<br />
    It can install MSI, InstallShield, PackagefortheWeb, Inno Setup, Nullsoft, other software installers or .exe packages, .bat and .cmd scripts and similar: no more repackaging to perform software installation.<br />
    WPKG is open source software
  • sadms.objectif-libre.com – SADMS is a free software programme. It takes care of handling configuration to achieve the integration of GNU/Linux hosts to an Active Directory domain. GNU/Linux hosts become Windows domain hosts and Windows domain users become GNU/Linux users.
  • GNS3 | Graphical Network Simulator – What is GNS3 ?<br />
    <br />
    GNS3 is a graphical network simulator that allows simulation of complex networks.<br />
    (Cisco IOS emulation)

Bookmarks for 3 giu 2011 through 5 giu 2011

These are my links for 3 giu 2011 through 5 giu 2011:

  • 500 Internal Server Error – 500 Internal Server Error
  • 500 Internal Server Error – 500 Internal Server Error
  • Creating a low cost, high performance ESX cluster | SPK and Associates – As Senior Systems Integrator for SPK and Associates, a California based IT services company specializing in infrastructure management services, I recently completed an interesting project.  The goal was to create an ESX cluster for a small engineering group (about 40 users).  The cluster would be used for a wide variety of applications — software repositories, QA testing of linux appliances, databases, and potentially others as well.  Other than a gigabit network switch and some PDUs, there was no existing infrastructure in place that I could leverage.<br />
    <br />
    For under $18k in hardware, and $7k in VMWare licensing, we were able to build a 2-node VCenter cluster with full HA support.  I expect this to be able to handle upwards of 60 virtual machines, based on typical usage.

Bookmarks for 28 mar 2011 through 2 apr 2011

These are my links for 28 mar 2011 through 2 apr 2011:

Bookmarks for 27 gen 2011 through 28 gen 2011

These are my links for 27 gen 2011 through 28 gen 2011:

  • 500 Internal Server Error – 500 Internal Server Error
  • IBM releases first information about upcoming x3650 M2 and … – March 2009:<br />
    […]The first Nehalem-based servers have already been released, and as always IBM is a quiet compared to other server manufacturers. However, today while looking at some support documents i saw that IBM finally offers downloads of IBM x3650 M2 and IBM x3550 M2 documentation[…]
  • Serial of VirtualBox – Task Description:<br />
    Host: Windows 7.Guest: Customized Linux 2.6, with all output redirected to serial port.I am going to debug the guest OS with a serial communication program under the host Windows 7[…]