aix

Bookmarks for 25 giu 2010 through 2 lug 2010

These are my links for 25 giu 2010 through 2 lug 2010:

  • migrazione RedHat Enterprise Linux a CentOS eseguita! – Lo scorso anno acquistammo un serverino – dischi in fiber channel, 4 cpu quadcore, 32GB di RAM … la solita roba, insomma – con su Red Hat Enterprise Linux. Ovviamente quest’anno allo scadere della licenza non ci sono i fondi per proseguire con gli abbonamenti annuali…Che si fa? Si migra a CentOS, ovviamente!<br />
    Per fortuna la procedura di migrazione è stata semplice, immediata e rispettosa del tutorial proposto nell’apposita pagina del wiki ufficiale.
  • Backup su HSDPA con router Linux – La settimana scorsa Stefano ha avuto un down tremendo della HDSL, più di 72 ore, quasi insopportabili per una azienda al giorno d’oggi. Per questo motivo mi ha chiesto di aggiungere al firewall/router che già gestisce le policy di rete, un backup su HSDPA automatico che attivi la connessione su 3G non appena il link ADSL cade.<br />
    <br />
    Ho cercato in rete se esisteva già qualche setup, ma ho trovato solo una guida per zeroshell e alcune discussioni su forum che però non erano pienamente esaustive.
  • MySQL Forge :: Dashboard – MySQL Forge is a repository of tools, projects, roadmap tasks, and wiki content that is created and maintained by the MySQL user and developer community. It is intended to be a resource for learning, contributing, and sharing information and code with each other.<br />
    <br />
    The Forge also has a section devoted to the people that compose the greater MySQL user and developer community.
  • rhomobile – the open mobile framework – Rhodes is an open source framework to rapidly build NATIVE apps for all major smartphone operating systems (iPhone, Windows Mobile, RIM, Symbian and Android). These are true native device applications (NOT mobile web apps) which work with synchronized local data and take advantage of device capabilities such as GPS, PIM contacts and camera.<br />
    <br />
    [via http://blog.fabriziogiordano.it/2010/07/02/rhodes-2-0-sviluppare-applicazioni-per-smartphone/]
  • www.hdkutz.de/os/aix/commands.txt – comandi spiccioli su AIX per ogni occasione (dalla 4.3.3 alla 6.1)

Bookmarks for 22 giu 2010 through 23 giu 2010

These are my links for 22 giu 2010 through 23 giu 2010:

  • Diagnosing Bottlenecks with Performance Toolbox – This document describes how to check for resource bottlenecks using the Performance Toolbox for AIX. Resources on a system include memory, cpu, and Input/Output (I/O). This document covers bottlenecks across an entire system and is applicable to Performance Toolbox versions 2.1 and 2.2. This document does not address how to find the bottlenecks of a particular application. The following commands are described:
  • vTask Studio – Support – Here are some productivity-enhancing programs for our customers at no cost:<br />
    * Our most popular freeware, TinyTask provides quick & easy automation by recording / playback.<br />
    * Increase your efficiency by automating your keyboard with TyperTask! This tool simulates keyboard typing, and can be used to instantly type common phrases.<br />
    * TimerTask will perform a job at a specified time. <br />
    * QwikMark provides fast and easy benchmarking. <br />
    * WhatChanged is a system utility that scans for modified files and registry entries.<br />
    * DataTool has been around in one form or another since the mid 1990's (pre-Toad).<br />
    * Associate is a command-line utility for assigning file associations. <br />
    <br />
    [ via http://www.masayume.it/drupal/content/piccoli-attrezzi-digitali-vtask-studio ]
  • Convert Squid unixtime logs in human-readable ones | commandlinefu.com – On-the-fly conversion of Unix Time to human-readable in Squid's access.log

Bookmarks for 15 giu 2010 through 16 giu 2010

These are my links for 15 giu 2010 through 16 giu 2010:

  • grimwepa – Project Hosting on Google Code – GRIM WEPA was written in Java and is intended for use with the Linux Operating System (specifically the Backtrack 4 distribution).<br />
    [ via http://vittoriop77.blogspot.com/2010/06/grimwepa-wifi-password-cracker.html ]
  • The HACMP cheat sheet – Do you want to set up a redundant environment for high availability but don't know how AIX® can help you? Discover High Availability Cluster Multi-Processing (HACMP) and gain a cheat sheet on how to configure and set up a simple two-node cluster.
  • http://www.openbeer.it/docs/bypassare_isaproxy.html – Poiche' l'autenticazione degli utenti in ISA avviene per mezzo del "celebre" protocollo proprietario NTLM, nessun browser che non sia IE6 su Windows puo' accedere al web attraverso il proxy (complimenti a Microsoft anche per questo… ;))<br />
    <br />
    Fortunatamente, un'anima pia che risponde al nome di Dmitry Rozmanov ha creato questo:<br />
    <br />
    http://ntlmaps.sourceforge.net/<br />
    <br />
    [nota personale: affanculo MS]

Bookmarks for 18 mag 2010 through 19 mag 2010

These are my links for 18 mag 2010 through 19 mag 2010:

  • Download details: Deployment Guide WSUS 3.0 SP2 – This guide describes how to deploy Microsoft Windows Server Update Services 3.0 SP2 (WSUS 3.0 SP2). You will find a comprehensive description of how WSUS functions, as well as descriptions of WSUS scalability and bandwidth management features. This guide also offers procedures for installation and configuration of the WSUS server and how to configure client workstations and servers that will be updated by WSUS. Also included are steps for setting up a WSUS server on an isolated segment of your network and manually importing updates.
  • Collabtive – Open Source collaboration – Collabtive is cloud based groupware easy and efficient for your projects<br />
    Collabtive is web-based project management software. The project was started in November 2007. It is Open Source software and provides an alternative to proprietary tools like Basecamp. Collabtive is written in PHP and JavaScript.<br />
    <br />
    [Via Raccolta differenziata: http://rd.minimarketing.it/ ]
  • Giavasan » Conficker – Questo post è la traduzione di un lungo articolo pubblicato su The Atlantic. La traduzione è assolutamente non rigorosa. Ho saltato alcune parti (parecchie) e ne ho aggiunte altre (poche). Non credo di aver travisato nulla, ma consiglio a tutti di leggere l’originale.
  • How autonegotiation supposed to work –

Bookmarks for 7 mag 2010 through 12 mag 2010

These are my links for 7 mag 2010 through 12 mag 2010:

  • AIX « I am vistababa! –
  • How to get unrestricted root access to HMC? « I am vistababa! – Using GUI interface of HMC, you can’t do everything you like! You just can use predefined features of GUI. For example, you can’t schedule every commands you want, or you can’t run a command remotely on clients from HMC, and so on.
  • Get your Dell Service Tag number via the Linux (or Windows) command-line – Brandon Checketts – When your server is located in a data center far away, it makes it difficult to walk over to the box and read the service tag off of it. Fortunately, the Service Tag is stored somewhere in the system BIOS, and is accessible with the ‘dmidecode’ utility.
  • TCP Traffic Analyzer (Yahoo! Developer Network Blog) – You probably have questions like these about traffic on a TCP (Transmission Control Protocol) server (or client):<br />
    <br />
    * How many connections lasted more (or less) than X milliseconds?<br />
    * How many connections needed more than N attempts to succeed?<br />
    * What is the distribution of connection duration or connection throughput?<br />
    * What is the distribution of connection duration or throughput for connections in which the server or client sent more than N bytes?<br />
    * What specific IP addresses and ports had connections that lasted between 50 and 100 milliseconds long?<br />
    <br />
    You can get answers to these questions (and more) using Yahoo!'s TCP Traffic Analyzer (yconalyzer), available as an open-source project via free download.

Bookmarks for 8 apr 2010 through 14 apr 2010

These are my links for 8 apr 2010 through 14 apr 2010:

Bookmarks for 17 feb 2010 through 18 feb 2010

These are my links for 17 feb 2010 through 18 feb 2010:

  • Puppet is system administration – Automated. – Puppet is a declarative language for expressing system configuration, a client and server for distributing it, and a library for realizing the configuration.
    By saving you countless hours of frustration, monotony, and/or reinventing the wheel, Puppet can change your life. Here are some key points about Puppet:
    Puppet lets you perform normal administrative tasks (such as adding users, installing packages, and updating server configurations) on any number of systems, even if those systems are running completely different operating systems. Through the use of providers, Puppet takes a generic instruction from you (such as ensuring MySQL is installed) and performs the task the "right way" for each system.
    Whether you have a small, heterogeneous network of user workstations or a cluster of rack-mounted number-crunchers, Puppet can help reduce your overhead and get the everyday management of your network under control so you can concentrate on the real problems.
  • Cheapest-Voip: Find the cheapest VoIP provider for the country you want to call – VoIP is offered by many providers, at different rates. The rates differ per country and change frequently. By using the form above, you can find out which provider is the cheapest at this moment, for the country you're trying to reach.

    via http://www.blogvoip.it/

  • tablespace.net – Homepage for William Favorite – tutorial e reference su AIX, linux, Solaris

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 🙂