Bookmarks for 19 set 2012 through 25 set 2012

These are my links for 19 set 2012 through 25 set 2012:

  • Your Soekris OpenBSD as a OpenVPN appliance | Me in IT – I have an existing network at home, but would like to be able to connect to it using a VPN every now and then. This enables me to access the fileserver, printer and so on.

    My network contains an Apple Time Capsule as a nat router, an ethernet modem provided by my cable company Ziggo and devices such as laptops, that use the network.

    A Soekris box I had lying around meets all requirements perfectly for a VPN-server. Here is how to set it up.

  • 1- Concetti base (di TSM) – NGI SpA – […]Tivoli Storage Manager (TSM) è il software di backup e archiving di IBM, attualmente alla versione 5.4. E' disponibile per diverse architetture e sistemi operativi e localizzato in svariate lingue.[…]

    Un'introduzione a TSM e all'uso più semplice

  • [IT Services] Using the TSM Client Command Line Interface for Backup & Restore – This section will first provide an introduction to the TSM Command Line Interface (CLI) and then describe how to manually back up and restore files on the local machine. The screen shots and descriptions that follow may refer to older TSM clients, but with the exception of the file specifications the syntax is generic to all platforms.

Bookmarks for 23 giu 2011 through 2 lug 2011

These are my links for 23 giu 2011 through 2 lug 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 14 dic 2010 through 18 dic 2010

These are my links for 14 dic 2010 through 18 dic 2010:

  • FreeNATS: Free Network Automatic Testing System – FreeNATS is a PHP and MySQL based automatic network status testing, alerting and repoting package from PurplePixie Systems and released under the GNU General Public Licence for free use. <br />
    <br />
    Current Test Types: Ping (ICMP), HTTP/HTTPs (Web), IMAP/IMAPs, POP3/POP3s, MySQL Connection, MySQL Queries, TCP Port, 2Various Node-based Monitors<br />
    <br />
    [ via http://www.delicious.com/farmando ]
  • PacketFence – What is PacketFence ?<br />
    PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) system. Boasting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, 802.1X support, layer-2 isolation of problematic devices, integration with the Snort IDS and the Nessus vulnerability scanner; PacketFence can be used to effectively secure networks – from small to very large heterogeneous networks. <br />
    <br />
    [ via http://www.delicious.com/farmando ]
  • Open Web Analytics – Easy, Open, Web Analytics.Open Web Analytics (OWA) is open source web analytics software that you can use to track and analyze how people use your web sites and applications. OWA is licensed under GPL and provides web site owners and developers with easy ways to add web analytics to their sites using simple Javascript, PHP, or REST based APIs. OWA also comes with built-in support for tracking web sites made with popular content management frameworks such as WordPress and MediaWiki.
  • 500 Internal Server Error – 500 Internal Server Error
  • SQL for Tivoli Storage Manager – This page has a collection of useful SQL statements for IBM Tivoli Storage Manager (TSM). Here you can find out a lot of selects that will help you to get information from TSM and to construct your own SQL statements.

Bookmarks for 2 dic 2010 through 14 dic 2010

These are my links for 2 dic 2010 through 14 dic 2010:

  • TSMmonitor – This script is developed to provide an easy, customizable and effective way to monitor TSM (Tivoli Storage Manager) Servers.<br />
    It is composed of functions to check specific TSM resources. Each check returns the resource status. The available status for a resource are:<br />
    Ok / Warning / CriticalThe status returned is based on defined thresholds for each check
  • How to: Ubuntu PHP Remove Suhosin – […] One of my projects for the "holidays" is moving one of my servers from Gentoo to Ubuntu. During planning for this, I noticed that the Ubuntu version of PHP5 includes Suhosin. That's a problem.<br />
    The problem with Suhosin is that it's designed to stop sloppy applications from doing bad things. I'm sure it does a reasonable job of that, but in the process it can interfere with good applications (see examples for Joomla). Since I'm in the business of writing good applications, Suhosin is a bad idea. Worse yet, it can provide a false sense of security, since it can't deal with anything except typical PHP errors. As far as I'm concerned, this class of "security blanket" provides false comfort and is no replacement for auditing and testing.<br />
    […]
  • Jean Baptiste FAVRE – Publications – Appunti e documentazione su linux, xen, DRBD, pacemaker in francese<br />
    Gli articoli su nodi xen in cluster e migrazione da xen 3.2 a 4 sono tradotti anche in inglese
  • 140 Google Interview Questions | Seattle Interview Coach – Here's a list of 140 Google interview questions. Many of our clients have interviewed and received Google job offers. 

Bookmarks for 8 nov 2010 through 10 nov 2010

These are my links for 8 nov 2010 through 10 nov 2010:

  • TOra – TOra is an open-source multi-platform database management GUI that supports accessing most of the common database platforms in use, including Oracle, MySQL, and Postgres, as well as limited support for any target that can be accessed through Qt's ODBC support. TOra has been built for various Linux distributions, Mac OS X, MS Windows, and UNIX platforms.<br />
    In addition to regular query and data browsing functionality, it includes several additional tools useful for database administrators and developers – which aims to help the DBA or developer of database application. Features PL/SQL debugger, SQL worksheet with syntax highlighting, DB browser and a comprehensive set of DBA tools.<br />
    <br />
    [ via www.ossblog.it ]
  • SQL for Tivoli Storage Manager – This page has a collection of useful SQL statements for IBM Tivoli Storage Manager (TSM). Here you can find out a lot of selects that will help you to get information from TSM and to construct your own SQL statements.
  • Cheat Sheet : All Cheat Sheets in one page – The Manual.su's project. All cheat sheets, round-ups, quick reference cards, quick reference guides and quick reference sheets in one page. The only one you need.<br />
    <br />
    [ via http://www.delicious.com/pecus ]

Bookmarks for 20 set 2010 through 23 set 2010

These are my links for 20 set 2010 through 23 set 2010:

  • Blungr.com | domain name generator – Are you looking for a domain name for your startup or project? Or maybe you are looking for your comapny name?<br />
    Try Blungr.com – a simple domain name generator. Just type one or two keywords, choose settings and mix them up! Also, you can check the domain availability. If it is available, you can purchase it!
  • 20+ .htaccess Hacks Every Web Developer Should Know About | DevMoose – […] Apache's .htaccess(hypertext access) configuration file can be a very powerful tool in a web developer's toolkit if used properly. It can be found in the webroot of your server and can be easily edited using any text editor. In this article I'm going to show you 20 .htaccess hacks and how to use them.<br />
    Before I start with this article I'd like to start by saying that abusing the .htaccess file will hurt the performance of your website. The .htaccess file should only be used if you have no other way to achieve certain things.<br />
    Make sure to back up your current .htaccess file before applying any of the following hacks. […]<br />
    <br />
    via http://www.bufferoverflow.it/
  • Keeping an eye on TSM volumes – […] I wrote a quick script which tells me when volumes in TSM (Tivoli Storage Manager) have access and/or media issues and shoots me off an email. The script does two things:<br />
    1) Checks for volumes which are NOT in the states READWRITE or OFFSITE.<br />
    2) Checks for volumes which have a read/write error count >0.<br />
    I’m sure that most people running TSM in their environment have some sort of daily reporting that gets sent out. If that’s the case, you can simply extract the SQL from the script and use it in your own reporting tools.<br />
    […]
  • Read Ruby 1.9: Free Ebook About the Ruby Programming Language – Very early draft of a book about version 1.9 of the Ruby programming language, released under a Creative Commons license.<br />
    <br />
    [via Bru Blogs Aggregator http://pipes.yahoo.com/codewitchbru/myblogs ]
  • Know Your UNIX System Administrator: A Field Guide – There are four major species of Unix sysad…<br />
    Esilarante 🙂

Bookmarks for 2 ago 2010 from 17:06 to 17:14

These are my links for 2 ago 2010 from 17:06 to 17:14:

  • LasCon Storage – TSM Scripting Hints and Tips – Send offsite and recall Copy tapes <br />
    Free up tapes which are almost empty <br />
    Multiple macro commands <br />
    Exporting scripts <br />
    Updating Netware Client Passwords
  • LasCon Storage – TSM Administration – Tivoli is part of IBM, and they provide a suite of management products for distributed systems. TSM used to be called ADSM and works on the 'incremental backup forever' principle, which takes a bit of getting used to, compared to the more traditional 'weekly full backup and daily incremental' system. With TSM, you backup all your clients to one central data backup server. This makes administration a lot easier, but means you have to limit the amount of data you send over the network. That's why TSM needs to be incremental. A central database records all backup information, and can be used to recreate a whole server if necessary. TSM always keeps at least one backup of every on-line file.
  • Shan’s "Fix IT in 1 Minute!" UNIX Admin Blog – Welcome to "Fix IT in 1 Minute!" – Shan Jing's UNIX Administration blog. It covers Solaris, Linux, AIX, Web; Unix/TCP/IP Internal Programming (C/Python/Perl); TCP/IP Protocols and Services (DNS, NIS, Kerberos, LDAP, SSH, Openssl, etc.); Shell scripting,Perl /Web XML/DBMS SQL; Security & Intrusion Detection (nmap,snort); Enterprise Web Middleware and Backend: WebLogic/Tomcat/Java/JSP/Web Applications; Grid Computing, Python/Django Web Framework, etc.

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.