Bookmarks for 20 dic 2013 through 21 dic 2013

These are my links for 20 dic 2013 through 21 dic 2013:

Bookmarks for 7 lug 2011 from 13:54 to 14:25

These are my links for 7 lug 2011 from 13:54 to 14:25:

  • 50+ Killer Apps for Your New Chromebook | Nettuts+ – In celebration of the first wave of Chromebooks being released today, now is a great time to start looking for replacements for the tools you can’t live without on a day to day basis. Code editors, image editors, games? All of these can be replaced! I’ll show you the best choices today.
  • Howto: Debian Squeeze+Nginx+WordPress – Nginx è uno tra i webserver open source che si sta diffondendo di più tra i sistemisti che ricerchino performance elevate e un consumo di risorse inferiore rispetto ad Apache (ma anche ad alternative “minimaliste” con Lighttpd).
  • Migrating data – Summary:  Migrating or copying data is a frequent task that system administrators carry out often. There are various tools available for these tasks, including cp, tar, and cplv.
  • Techdocs: Migrating Users from One AIX System to Another AIX System – This document discusses migrating users from one AIX system to another. This does not include transferring the user's personal data or home directories.<br />
    The information in this document applies to AIX 5.2 and above.<br />
    Since the files involved in the following procedure are flat ASCII files and their format has not changed from V4 to V5, the users can be migrated between systems running the same or different versions of AIX (for example, from V4 to V5).
  • Techdocs: hacmp tutorial

Bookmarks for 18 mag 2011 through 28 mag 2011

These are my links for 18 mag 2011 through 28 mag 2011:

La MicroSoft-izzazione di IBM

Questa è una di quelle storie che fa ridere solo il sottoscritto ma mi pareva ugualmente carino condividere.

Da qualche giorno l’installazione del TSM di un cliente mi da parecchi pensieri, Tivoli è Il sistema di backup di classe enterprise e tendenzialmente vive di vita propria, basta dargli in pasto qualche cassetta ogni tanto, un po’ come fosse una pianta grassa.

Capita però che, un po’ per noia, un po’ per stanchezza, a TSM passi la voglia di lavorare per bene e cominci a mancare un backup qui e uno la. Fortunatamente parliamo comunque di un Signor prodotto che produce quintalate di log compresivi di codici errori univoci e descrizioni altisonanti.

Attraverso l’interpretazione dei codici errori, l’aruspice di turno e cioè me, deriva il passato e il futuro dello sfortunato backup. L’interpretazione dei suddetti errori passa attraverso la “Client Message List“, la porta verso un più consapevole troubleshooting.

Ad essere fortunati, in pochi minuti si torna operativi più gagliardi che mai! Ad essere sfortunati si infilano 3 codici tipo:


ANS1316E
: The server does not have enough recovery log space to continue the current operation: IBM dice che è una cosa temporanea e di non dargli peso ma se, come in questo caso son 3 giorni, di chiamare l’amministratore di sistema che per un caso barbino del destino, sono io.

ANR2579E: Schedule schedule name in domain domain name for node node name failed (return code return code): in questo caso si consiglia di visualizzare il log degli errori presente sul client che ha fallito il backup. Va da sé che nel log, non c’è scritto nulla di utile, al più un altro codice di errore che rimanda fatalmente a questo creando una spirale di violenza che genera altra violenza, sul povero amministratore (sempre io).
ANR4532W: The total DB used in DB space is log space used megabytes, and the total space available in the DB space is log space available megabytes. The ratio is log file system used ratio: questo secondo me è il migliore del terzetto! La spiegazione dell’errore ripete sostanzialmente il messaggio di errore, non si sa qual è il comportamento del server in questo caso e non è presente nessuna azione possibile.

Andando a cercare un senso a tutto ciò vien fuori che forse c’è tra le altre cose un errore nella versione in uso di TSM per cui, stanco com’è, non rilegge certi parametri e il “workaround” proposto è quello di fare una proporzione, una di quelle che si imparava a fare alle elementari e, con il valore ottenuto ingannare il povero TSM.

Mi ricorda tanto quella volta che un collega ha messo l’ora sbagliata su un domain controller e 24 suoi fratellini, han smesso di replicarsi per 3 giorni.

Bookmarks for 21 lug 2010 through 22 lug 2010

These are my links for 21 lug 2010 through 22 lug 2010:

  • TestKing Pass4Sure 70-290 MCSE 70-620 CCNA 640-802 70-270 70-291 70-647 … – Welcome to ExamCollection.com!<br />
    <br />
    Have you ever prepared for a certification exam using PDFs or braindumps? If yes, then I think you will agree with me that using practice test software is more comfortable and efficient way to prepare.<br />
    <br />
    The purpose of this site is to help you use TestKing, Pass4sure, CertifyMe, ActualTest, Braindumps and other PDFs as practice exams, not the multipage text documents as most of us have used it.<br />
    <br />
    Here you can download free practice tests for such certifications as MCSE, MCDBA, MCSD, A+, Network+, Security+, CCNA, CCNP, and so on. All tests on this site have been created with Visual CertExam Suite. Visual CertExam Suite is an exam simulator developed for certification exam preparation. You can also use it as a Trandumper replacement. Files with VCE extension can be opened with this program.
  • Sagan from Softwink, Inc [800-538-9357] – Sagan is a multi-threaded, real time system and event log monitoring system, but with a twist. Sagan uses a "Snort" like rule set for detecting bad things happening on your network and/or computer systems. If Sagan detects a "bad thing" happening, that event can be stored to a Snort database (MySQL/PostgreSQL) and Sagan will attempt to correlate the event with your Snort Intrusion Detection/Intrusion Prevention (IDS/IPS) system.
  • Carta – Forbice – Sasso – La strategia per vincere 🙂
  • How to improve creativity – A two part ( series on using psychological techniques to improve your creativity <br />
    <br />
    [via http://delicious.com/pecus ]

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 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 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 18 dic 2009 through 22 dic 2009

These are my links for 18 dic 2009 through 22 dic 2009:

  • Welcome to Computers-it – A resource for Computers and Information Technology – Articoli vari su linux, aix, TSM, soluzioni a problemi curiosi, note sulle peculiarità (/proc per linux, HACMP su AIX, etc).
  • How to install AIX 5L – Summary:  Get step-by-step instructions for a number of generic AIX® system setup procedures. These instructions should work for any of the AIX™ 5L releases. Variations, if any, should be minor.
  • Welcome to Linux on Power wiki! – This wiki provides a forum for Linux users on PowerPC-based systems. It is oriented at the IBM POWER systems (System p p5 and p6), but topics covering i5 (iSeries), embedded 32-bit based PowerPC systems as well as Apple systems are also welcome.
    There is also an IBM hosted Wiki at http://www.ibm.com/collaboration/wiki/display/LinuxP – you may find more information on IBM system p5 servers and linux there.

Bookmarks for 15 dic 2009 from 18:36 to 19:16

These are my links for 15 dic 2009 from 18:36 to 19:16:

  • Making Open Source Convenient | JumpBox Virtual Appliances and Applications for Cloud Computing – It's a ready-to-deploy virtual computer that contains a pre-configured instance of an application. Self-contained, secure and optimized – it gives you the value of Open Source software without the headaches. A JumpBox has the following qualities:

    Easy to deploy on Mac, Windows or Linux.
    Portable across operating systems and cloud environments.
    Simple to manage with a web-based administration interface.
    Protected by a built-in, automated backup system.
    Isolated from interfering with existing software.
    Flexible to allow you to move between virtual and cloud systems.
    Proven through collective usage of thousands of people

  • Waldemar Mark Duszyk – Un blog su AIX molto bello, lezioni, trucchi, script.
    Materiale base e avanzato
  • Troubleshoot Connections through the PIX and ASA – Cisco Systems – This document provides troubleshooting ideas and suggestions for when you use the Cisco ASA 5500 Series Adaptive Security Appliance (ASA) and the Cisco PIX 500 Series Security Appliance. More often than not, when applications or network sources break or are not available, firewalls (PIX or ASA) tend to be a primary target and blamed as the cause of outages. With some testing on the ASA or PIX, an administrator can determine whether or not the ASA/PIX causes the problem.
  • Ricerche IT » Sniffing del traffico di rete con Cisco ASA 5505 – Può capitare, alle volte, di trovarci nella necessità di dover fare troubleshooting sulla nostra rete in conseguenza di un qualche malfunzionamento (software o hardware che sia); in alcuni casi, può essere estremamente utile “sniffare” il traffico di rete, cioé avere in una qualche forma comprensibile all’essere umano l’insieme (o, più spesso, un sottoinsieme) delle comunicazioni che avvengono sulla rete[…]