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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.

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