geekism and nerdism

Bookmarks for 8 feb 2010 from 14:31 to 17:26

These are my links for 8 feb 2010 from 14:31 to 17:26:

  • Performance Tuning with "nmon" – Use this WebWizard to start Performance Tuning your IBM pSeries running AIX. This WebWizard assues you are using a freely available and very useful tool called nmon – full detail on getting this are below. nmon – is strongly recommended as it provides all the AIX statistics constantly updated on a "dumb" screen.
  • IBM Performance Management for Power Systems : overview – Your IBM Power™ Systems model (including the IBM System i®, the IBM System p® and the new POWER6™ models) can be one of your company's most valued assets. But it is an absolute requirement you understand the utilization and growth of your system to help with making better plans for reducing cost, improving service and managing risk. Building a dynamic infrastructure that accommodates the changing demands of your business in a planet becoming smarter is critical.
  • Tuning and hardening Squid | Christian Schenk – Tuning and hardening Squid will be the topic of this post, where tuning means making it a little bit faster and hardening means less vulnerable to malicious use.

Bookmarks for 30 gen 2010 through 7 feb 2010

These are my links for 30 gen 2010 through 7 feb 2010:

  • flashrom – flashrom is a utility for identifying, reading, writing, verifying and erasing flash chips. It's often used to flash BIOS/EFI/coreboot/firmware images.
    via ossblog
  • glype proxy script – free anonymous proxies list – Glype proxy script is a free-to-use, web-based proxy script written in PHP. Similar to a typical proxy server, a web-proxy script downloads requested web pages and files and forwards them back to the user. The service is provided by a web page itself, which allows instant access to the proxy without editing your browser connection settings[…]

    via .mau.

  • Repairing and re-registering the WMI – If you experience behavior when using WMI, such as application errors or scripts that used to work are no longer working, you may have a corrupted WMI repository. To fix a corrupted WMI repository, use these step…
  • Tuning the AIX file caches – Wikistix – By default, AIX is tuned for a mixed workload, and will grow its VMM file cache up to 80% of physical RAM. While this may be great for an NFS server, SMTP relay or web server, it is very poor for running any application which does its own cache management. This includes most databases (Oracle, DB2, Sybase, PostgreSQL, MySQL using InnoDB tables, TSM) and some other software (eg. the Squid web cache).

    Common symptoms include high paging (high pgspin and pgspout in topas), high system CPU time, the lrud kernel thread using CPU, slow overall system throughput, slow backups and slow process startup.

    For most database systems, the ideal solution is to use raw logical volumes. If this is not acceptable, then direct I/O and concurrent I/O should be used. If for some reason this is not possible, then the last solution is to tune the AIX file caches to be less aggressive

Bookmarks for 26 gen 2010 through 30 gen 2010

These are my links for 26 gen 2010 through 30 gen 2010:

  • Network monitoring with Nagios and OpenBSD – Una guida in italiano all'installazione configurazione di nagios sotto BSD
  • UNIX Performance Management – The purpose of this paper is to introduce the performance analyst to some of the free tools available to monitor and manage performance on UNIX systems, and to provide a guideline on how to diagnose and fix performance problems in that environment. The paper is based on the author’s experiences with AIX and will cover many of the tools available on that and other UNIX platforms. It will also provide some Rules of Thumb for analyzing the performance of UNIX systems. The paper has been updated to include some of the things that can be done in order to make sure that the web server will perform well.
  • UNIX BASH scripting: Replace values in XML using sed and awk – […]Even though sed or awk is not suggested to work with XMLs (generally a programing language like Perl or Python is more preferred), there can be simple cases where we can make use of sed or awk to perform certain search and replace in simple XML s. Here is an simple example[…]

    che fico 🙂

Bookmarks for 25 gen 2010 from 15:08 to 18:02

These are my links for 25 gen 2010 from 15:08 to 18:02:

  • How to build a Social Networking Website with Drupal – woorkup.com – With this article I want to explain how you can plan and build a Social Networking Website using Drupal. The intent of the post is to provide useful tips and informations to understand the issues behind the building of a working on-line community. This writing was inspired by the reading of two interesting books, Community Building on the Web: Secret Strategies for Succesfull On-line Community and Drupal 6 – Social Networking. It’s clear that in a post I can provide only some useful cues to make a well-done work. I suggest to read the books above mentioned if you want to know more about the techniques and best practices for developing a good web network service.
  • Teambox | Project collaboration – Collaboration just got better
    A place for your team in Twitter-like project collaboration tool.

    Share tasks, messages, files. Get notified by email. Real group collaboration for your projects!

    Via http://www.fogliata.net

    […] Per ogni progetto sono disponibili un’area per le conversazioni, una per i vari compiti assegnati, una per le pagine ed un’altra per i file caricati dagli utenti. Teambox permette di fare più o meno le stesse cose possibili con Basecamp, con il vantaggio però di essere un sistema gratuito ed open source che potete persino installare sul vostro server[…]

  • The Heartbeat User’s Guide – The definitive reference guide for users of the Heartbeat cluster messaging layer.

Bookmarks for 25 gen 2010 from 02:01 to 12:41

These are my links for 25 gen 2010 from 02:01 to 12:41:

  • Considerazioni sui CV… « JP’s Web Place – […] Chissà poi perchè poi molta gente inizia sempre l’”elenco delle giustificazioni” con la scusa – per altro smentibile e regolarmente smentita in pochi secondi – del “ma io non sono così bravo come te” o del “ma io non ho così tanta roba da scrivere come te”: bah e doppio bah[…]

    (a me non l'ha mai detto nessuno o forse, uno, due… 😉

  • Top 40 Free Downloadable Open Source Social Networking Software | Vivalogo Resources – This is Vivalogo's list of best free, downloadable, open source social networking software (kinda hard to say all these words 🙂 ).
    Unlike some other lists you may find on the net, this one contains only really downloadable and functional software.
    Note: listed in no particular order.

    via Paolo: http://www.gnuband.org/

  • Black Sheep Networks Resources –

Bookmarks for 18 gen 2010 from 17:06 to 23:41

These are my links for 18 gen 2010 from 17:06 to 23:41:

  • Samba e Active Directory .:. PippoFante.it – Unire una macchina Linux (*BSD, Solaris, …) a un dominio (Active Directory) Windows talvolta è comodo, talvolta è utile, talvolta è necessario. Per ottenere questo risultato si usa Samba.
  • Squid e autenticazione su Active Directory .:. PippoFante.it – È giunto il momento di rifare il proxy aziendale – ovviamente Squid – e con l'occasione cambio il metodo di autenticazione appoggiandomi al dominio: una password in meno per gli utenti e controllo più centralizzato. Le condizioni al contorno sono sempre quelle: Debian come guest su VMware ESX così aumentiamo la percentuale di virtualizzazione con tutti i pro (ma anche i contro).
  • IBM Quicklinks | Main –

Bookmarks for 14 gen 2010 from 00:48 to 13:11

These are my links for 14 gen 2010 from 00:48 to 13:11:

  • ideone.com – Choose language, paste code and input data (optionally), choose whether your code ought to be executed and whether it ought to be private (i.e. not listed in recent pastes) and click submit button. Then watch your code being executed, share it with your team or friends, or run it again with new input to debug.

    via http://tinyhacker.com/hacks/execute-code-online-using-ideone/

  • Airytec Switch Off – Shutdown your PC automatically or remotely from any computer or mobile phone – Switch Off is a lightweight easy-to-use tray-based system utility that could automatically shutdown, suspend or hibernate your system to cut your electricity bills and save the Environment by lowering your PC power consumption. It could also disconnect dial-up and VPN connections to cut your internet service bills as well. Automation options allows you to schedule all operations daily, weekly, past specified time or when PC becomes idle.
  • IBM AIX Tips and Tricks –
  • Jay Sri Ram. Bharat Mata Ki Jay – I want to share some of my technical knowledge which I gathered and […]some scripts which I wrote. I will be happy if any of these information helps you. Lot of these information I figured out by myself and some of these information I collected from several websites. My objective is to share my documents with whoever want. Whenever I get some free time I try to learn new stuffs and I like to share those[…]

    Appunti su aix, hp-ux, linux e solaris. Tips e script

Bookmarks for 8 gen 2010 through 11 gen 2010

These are my links for 8 gen 2010 through 11 gen 2010:

  • Prezi – The zooming presentation editor – via http://www.alfonsofuggetta.org/
  • Stupid WordPress Tricks • Perishable Press – One of the most popular articles here at Perishable Press is my January 2005 post, Stupid htaccess Tricks. In that article, I bring together an extensive collection of awesome copy-&-paste HTAccess code snippets. Four years later, people continue to tell me how much they enjoy and use the content as a bookmarked reference for many of their HTAccess needs. The article was even published in a book on Joomla! Security[…]
  • RegExr: Online Regular Expression Testing Tool – Welcome to RegExr 0.3b, an intuitive tool for learning, writing, and testing Regular Expressions.

Bookmarks for 6 gen 2010 through 8 gen 2010

These are my links for 6 gen 2010 through 8 gen 2010:

  • Tools – Mt Xia – Downloads,Business Continuity,Disaster Recovery,High Availability,Virtualization,Data Center Automation,Audit Response,Audit Compliance,Security Assessment,Technical Support
  • pWare – AIX Open Source software for IBM AIX 5.3 and 6.1 – AIX Open Source software for IBM System p server (formerly pSeries and RS/6000) machines running AIX 5.3 and higher. My name is Bill Jojo and I work at Hudson Valley Community College where we use a significant amount of Open Source software to manage our environment.
  • Create AIX NIM master – NIM is better in that you can install a new OS from a mksysb in as little as 5 minutes versus installing from CD which can take 40 minutes or longer. You can also keep your builds consistent if you have one mksysb image to build an AIX server. This also makes server builds easier at remote locations, no more swapping CD’s[…]
  • AixErrorLogCustomization < AIS < TWiki – AIX has a very flexible error logging daemon to log hardware and software errors. The log is typically accessed with the errpt command.
    Unfortunately, checking the log is a manual process. Using some custom ODM entries, we can cause AIX to run commands in response to errors, which can then be used for notification.
    Below I document a simple configuration which uses the ODM to log each error entry to syslog, and forward the complete entry via email.
  • c99madshell Security Review – Derek Fountain – A friend of mine got hacked recently. Some charming person managed to upload a rogue file to his server and replaced some of the software executables he produces with versions containing trojans and viruses.

    It seems there's not a lot of information available that describes just what is possible from an uploaded file vulnerability. So I grabbed a copy of 'c99madshell', which is one of the more popular scripts used by script kiddies, and had a look at what it can do. Here's what I found…

Bookmarks for 5 gen 2010 from 16:27 to 19:15

These are my links for 5 gen 2010 from 16:27 to 19:15: