Linux

VMware Perl SDK bug and workaround

Byetzion 10/11/2007

During an attempt to use the VMware Perl SDK, I have encountered the following error:

VMControl Panic: SSLLoadSharedLibrary: Failed to load library /usr/bin/libcrypto.so.0.9.7:/usr/bin/libcrypto.so.0.9.7: cannot open shared object file: No such file or directory

This is weird, as it was compiled successfully on my system (Centos4), but still…

The workaround was to create two symlinks:

ln -s /usr/lib/libcrypto.so /usr/bin/libcrypto.so.0.9.7

ln -s /usr/lib/libssl.so /usr/bin/libssl.so.0.9.7

This was related to an attempt to setup VMware fencing in RH Cluster on VMware Server.

Linux | Scripting/Programming

RedHat / Centos Kickstart tweaks

Byetzion 01/07/2007

Kickstart is a great method of hands-free installation of RHEL/Centos (and other derived systems). Its power is in its easy interface and rather powerful %post scripting directives. Its weakness is in its lack of flexibility where it comes to package selection and various custom actions. On some cases, companies use web interface (usually home-made) which…

Linux | Scripting/Programming | Virtualization

Xen VMs performance collection

Byetzion 18/10/200816/01/2022

Unlike VMware Server, Xen’s HyperVisor does not allow an easy collection of performance information. The management machine, called “Domain-0” is actually a privileged virtual machine, and thus – get its own small share of CPUs and RAM. Collecting performance information on it will lead to, well, collecting performance information for a single VM, and not…

Clusters | Linux

Tips and tricks for Redhat Cluster

Byetzion 31/01/2009

Redhat Cluster is a nice HA product. I have been implementing it for a while now, lecturing about it, and yes – I like it. But like any other software product, it has few flaws and issues which you should take under consideration – especially when you create custom “agents” – plugins to control (start/stop/status)…

General Hardware | Linux

How to Create an IPMI User Using Linux CLI, A Step-by-Step guide

Byetzion 02/05/202302/05/2023

A common tool in use when needing a console access to a remote server is the IPMI. There are multiple names and implementations – HPE’s ILO, Dell’s iDrac, Lenovo IMM, and so on. This interface can be configured – both network settings and user access credentials, when having a BIOS access, however – a question…

Linux | Scripting/Programming

Cables connection in Israel for Linux

Byetzion 14/05/200912/07/2015

Update to 0.2. Links remain the same. At the moment I cannot host many versions (it’s mostly uncomfortable), but this might change in the future. I have created a GUI cables installer and configurator for L2TP on Linux. I have noticed that there is no GUI solution, so, after this has been brought up, I…

General Hardware | Linux

RHEL4 can see only 8 cores out of 16 cores server

Byetzion 21/05/2008

I have encountered it on several cases. RedHat Linux ES, by default, uses smp kernel which is limited to eight cores, or two sockets. You find out that your multi-socket hardware, with its 16 (or more…) cores show you only the first eight, both by the simple method of running ‘top‘ and then pressing on…

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