Bookmarks for 6 nov 2012 through 13 nov 2012

These are my links for 6 nov 2012 through 13 nov 2012:

  • Howto: Change the IP address of a Dell 4/P DRAC from the command line without rebooting the server – Normally you configure a Dell Remote Access Card (DRAC) when a server is initially commissioned. Once the card is set, administrators rarely if ever need to modify the settings. If you do need to change the settings, the server needs to be restarted so the DRAC BIOS can be modified, which obviously results in system downtime and requires a physical presence at the server console.
  • bash ini parser | /var/log/ajdiaz – In some situations i like to use INI files as configuration files, as python do. But bash do not provide a parser for these files, obviously you can use a awk code or a couple of sed calls, but if you are bash-priest and do not want to use nothing more, then you can try the following obscure code:
  • Jugg Monkey: VMWare HA Agent had an error – I recently had a problem with one hoste in a 3 node VMWare ESX 3. 5 cluster. For some reason, the HA Agent would not start after I applied outstanding software updates. I kept receiving "VMWare HA Agent had an error" in the alerts after the host came online. I had recently needed to change the IP address of the VMWare 3.5 ESX host, so I figured that was the root cause.

Bookmarks for 12 mar 2012 through 19 mar 2012

These are my links for 12 mar 2012 through 19 mar 2012:

  • Computer Server Rack Facts, Questions and Answers. – Not all racks are created equal . . . and not all servers will fit in all racks
  • Introduction to text manipulation on UNIX-based systems – Summary:  This introduction to text manipulation on UNIX platforms provides an overview of some common commands widely available and installed standard on most UNIX-based releases. Many times these standard utilities are ignored in favor of more modern text-processors such as Perl, Python, or Ruby, which are not always installed on a system. An introductory review of these tools helps practitioners who are learning UNIX or Linux or those who may be looking to renew forgotten knowledge.
  • – exact time, any time zone – Current local time in… your place

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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.