Problem getting connection with nx client

Posted on Sat 21 January 2012 in Linux • Tagged with freenx, nx

The NX protocol is a remote X protocol and software quite similar to VNC but over ssh.

While using it for a machine there was this strange behavior that the session was not working anymore and can't be reestablished. Reinstalling and configuring the nx server software didn't fix the problem …

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ssh -X doesn't work on CentOS

Posted on Thu 13 October 2011 in Linux • Tagged with CentOS, security, SSH

If you installed the server without GUI it may is useful sometimes to have a GUI output via ssh on an different computer.

You can connect with ssh to the server and present the output on you local machine by using ssh with the option -X. You need to be …

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Install Grub bootloader from live cd

Posted on Sat 09 July 2011 in Linux • Tagged with Grub, Linux

Grub is the default bootloader for the most popular Linux distributions. The installation procedure is not so easy if you're not familiar with the concept behind it.

After a restore or copy of a system to a new harddisk the bootloader needs to be reinstalled to this new disk. If …

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Problem booting OpenSuSE 11.4 with error "Bug: SoftLookup"

Posted on Mon 27 June 2011 in Linux • Tagged with opensuse

On a desktop machine I updated from OpenSuSE 11.1 to 11.4 there appeared some strange boot problems after installation.

The system freezes each time directly after grub and the only message I got in textmode was "Bug: SoftLookup". First I thought maybe there are hardware problems but the …

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Upgrade Fedora 14 to 15

Posted on Wed 25 May 2011 in Linux • Tagged with Fedora, upgrade

This time I upgraded my Fedora just after being released by the Fedora team. It looks like there is a little masochist in my head. But to be fair the Fedora release team did quite a good job with their upgrade mechanism. The system was installed with a Fedora 13 …

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Some experiences with KVM

Posted on Sun 01 May 2011 in Linux • Tagged with Fedora, KVM, Virtualization

On my workstation I am running Fedora and KVM for testing some Linux based configurations. It's an AMD based system with 2 x Dual-Core AMD Opteron(tm) Processor 2216, 8Gb of Ram and normal SATA hard discs. Works still o.k for everything I am experimenting with and has enough …

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Upgrade Fedora

Posted on Sun 01 May 2011 in Linux • Tagged with Fedora, Update

Today my workstation asked me to update from Fedora 13 to Fedora 14. Fedora Logo

Because I didn't need it and the data on it are not important for me for the next few days I started the upgrade and monitored it beside I was working on my Mac Book.

The workstation …

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Update from CentOS 5.5 to 5.6

Posted on Wed 20 April 2011 in Linux • Tagged with CentOS

CentOS 5.6 was released and I updated nearly all of my CentOS machines to the new version. Up to now only one machine made some smaller problems and needs some love to work like it did before the update.

The procedure is quite simple if your are on CentOS …

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Update CentOS 5.4 to CentOS 5.5

Posted on Tue 19 April 2011 in Linux • Tagged with CentOS

How to update CentOS 5.3 to CentOS 5.4

It's done.

CentOS 5.4 was released on 22. Oct 2009

If you wan to update, first verify there are no known problems or version conflicts with your software.

Be sure you have a backup and take a snapshot if …

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