Switch Mishmash

Posted by Roel Gloudemans on 29 February 2008 | 0 Comments

Tags: Network, high performance

Last week, I stumbled upon an interesting problem. One of
the projects I'm working on as an astronomical sensor grid,
putting out about 2.6Gb/s of data per sensor station,
coupled to a central super computing infrastructure. This
system is still in the buildup/tender phase, so the network
consists of networking equipment of various brands, to test
out what the differences are and how well they work
together. There are only 5 sensor stations at the moment,
so the total amount of data is manageable. In the future
the total data stream will grow to about 1Tb/s, to be
processed real time.

0 comments | Read the full post

Using OpenDNS with your own DNS

Posted by Roel Gloudemans on 21 February 2008 | 1 Comments

Tags: Linux, DNS

Yesterday I read an article about OpenDNS
http://www.opendns.com. OpenDNS adds the
possibility of domain name based filtering. You can
configure your own white and blacklist, but they also have
a list of categories you can choose from. Most interesting
category I found was phising, but I image that if you got
small children at home you'd also want to block porn and
such. Domain name spelling correction is an added bonus,
plus they promise almost 100% service availability,
superior performance, domain name spell checking and
statistics gathering (can be turned off).

1 comments | Read the full post

The Triangle of Amplification

Posted by Roel Gloudemans on 14 February 2008 | 0 Comments

Tags: System Management, Support Organization

SOA, SOX Compliance, Virtualisation, Security, Identity
Management, Outsourcing; all trends of the current time.
Organizations are struggling to adapt and incorporate.
Consultancy bureaus thrive on this (I belong in this
category). Now is the time to step back and look on how all
of these trends interact and what the demands are on he
organization from a holistic point of view.

0 comments | Read the full post

End to all Desktop problems?

Posted by Roel Gloudemans on 12 February 2008 | 0 Comments

Tags: virtualization, desktop

Some consultants would you believe that virtualisation
technology will solve all your desktop problems.... Yeah,
right!

0 comments | Read the full post

Away with ITIL

Posted by Roel Gloudemans on 4 February 2008 | 3 Comments

Tags: ITIL, System Management, Support Organization

ITIL has become the de facto standard for system management
in most large organizations and many small ones. ITIL has
revolutionized system management . One of the strongest
points of ITIL is the dictionary that comes with it. Now we
can all understand each-other when talking about system and
service management.

3 comments | Read the full post

Certification; killing innovation?

Posted by Roel Gloudemans on 2 February 2008 | 0 Comments

Tags: certification

Many employees require their personnel to be certified in
certain areas. This could be area specific certificates,
like security, or vendor specific certificates, like MCE or
CCNA. The reason behind it seems very obvious; the
certificate is proof that one has mastered the necessary
knowledge. It reduces the risk for the employer or customer
of having an inadequate staff.

0 comments | Read the full post