Spacewalk 2.3 released

After Red Hat Satellite 5.7 was released 3 months ago Spacewalk version 2.3 was published on 14th of april 2015 after 9 months of development. Like the commercial spin-off the recent management suite also offers a more modern web-interface. With version 2.2 this interface’s user experience was overhauled by HTML5, jQuery and Bootstrap. Die updated
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VM Tools for MS-DOS and Windows 3.x

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VMware offers software packages including additional applications and drivers for the most support guest operating systems – these packages are also called VMware Tools. Beside recent operating systems also older releases are supported – e.g. there are also Tools for Windows NT. Unfortunately MS-DOS and Windows 3.x are not supported, yet – even if there
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Short tip: VMware vSphere “Module DiskEarly power on failed to lock file”

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While booting a virtualized cluster node I stumped upon a suspicious error message recently: Module DiskEarly power on failed to lock file In the VMware forums I found a hint that locking mechanisms might account for this issue. However the thread focussed on desktop products and not on vSphere. I found no lock files (*.lck)
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Short tip: Monitor Koukaam NETIO PDUs with Nagios / Icinga

Koukaam NETIO power outlets offer a network interface that can be used for controlling the particular ports comfortably. It would be even nicer to monitor them with Nagios or Icinga. 2012 I created a provisional bash script for monitoring the ports and time synchronization over NTP. This weekend I migrated the script to Python and
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vRetro trip: MS-DOS 6.22 and Windows 3.1 in 2015

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Because of a recent comment on this blog I stumbled upon an interesting Abandonware webseite. For me this was a reason for diving into a world of forgotten software (thank you very much for the hint, Frank!). While browsing the software archive I vividly recalled my first steps with the computer. Back then – in 1993/1994
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Short tip: My Spacewalk article series

The current issue of freiesMagazin 03/2015 also included the fifth and last part of my article series about Spacewalk, Red Hat Satellite und SUSE Manager. A collection of all links for interested first-time users : “Einführung, Übersicht und Installation” (freiesMagazin 08/2014) “Registrierung und Verwaltung von Systemen” (freiesMagazin 09/2014) “Automatisierung und Kickstart” (freiesMagazin 11/2014) “Verwaltung von
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Short tip: PostgreSQL error “SQLSTATE[08006] [7] FATAL: Ident authentication failed”

While testing a web application that uses PHP PDO to establish a connection to a PostgreSQL database I stumbled upon the following error message: Fatal error: Uncaught exception ‘PDOException’ with message ‘SQLSTATE[08006] [7] FATAL: Ident authentication failed for user “user”‘ in xxx.php Surprisingly I was able to create a connection using the console with the
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Oracle XE: reset locked users

If you haven’t used an Oracle database for some time you might stumble upon the issue I just had: all internal user accounts were locked and I also didn’t know the passwords. By default login information of internal users are invalid after 180 days. The following accounts are important to me on my Oracle 11gR2
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