Jens’ BLOG

May 22,1973 was the day the Ethernet concept was first outlined in a memo from the young Bob Metcalfe at PARC [...]

Source

Always run named-checkconf -z after making changes to your Bind configuration. And of course you should read the output and fix errors.

For lazy people like me make is pretty useful:


root@dns:/etc/bind# cat Makefile
all:
named-checkconf -z
rndc reload


Just type make and your configuration gets checked and if everything is in order Bind is reloaded.

When activating SNMP on an IBM IMM module do not panic when SNMP is not working right after the restart. Go get yourself some coffee. And while your at it get something to eat. Or clean
the coffeemaker or do something else for about 15 to 20 minutes. Then try queering the module via SNMP again.

some month ago I started playing Command and Conquer Tiberium Alliance. I think it’s a lot of fun.

If you want to join in use the following URL so I get some extra resoureces (I’m playing on World 53, World 72, World 67 and Welt 28 (German)).

Setting up virtual Servers can be very time consuming when done interactively.

I’m using virt-install and Debian Preseed for this:


virt-install --name example --ram 512 --file=/opt/vms/example.img --file-size 10 --location=http://ftp.de.debian.org/debian/dists/squeeze/main/installer-i386 --extra-args="netcfg/get_ipaddress=192.0.2.10 netcfg/get_netmask=255.255.255.0 netcfg/get_gateway=192.0.2.1 netcfg/get_nameservers=192.0.2.1 netcfg/disable_dhcp=true auto=true interface=eth0 hostname=example domain=quux.de url=http://example.com/preseed.cfg" --vnc


I just have to integrate puppet more closely into this setup and setting up a new VM takes just a couple of minutes.

Some time ago I moved my blog, mail and jabber server to a new server (or to be more precises to a virtual servers on a new physical server). I still have to move some
Apache vhosts which will happen during the week, most probably May 1st.

When working as a freelancer you often have to deal with strange people. I already mentioned iOS vs IOS earlier.

Here are some examples:

“I’ll just send you an email about a very interesting project” – “Just” meaning phone call first then hitting send.

Or (two weeks ago): “We need someone for an IPv6 workshop in two weeks” – As I just had two days left and the customer was on the route between two other customers. I answered but got no reply. Then last week (different company offering the project, same text): “We need someone for an IPv6 workshop this week. Or next week!”

And another favorite: “Opportunité de mission pour un ingénieur checkpoint”. Whats wrong with that? I don’t speak French and I’m not working with Check Point firewalls.

Haven’t posted for quite some time, but I’ll (again) promise to write more often.

Last week I gave a one day IPv6 introduction at a customer.

They are afraid of two things:

• Implementing IPv6 in there complex network which has grown over the years
• Not implementing IPv6

(Okay, okay, it’s old.)