Posts Tagged ‘ip address

My system has a daily job to collect and aggregate the IP Blocks distributed by the five registrars into a single database, and then provide high-level WHOIS information for this data. If you want to try this yourself, the interface here.
On an extremely irregular basis, I aggregate the statistics from this data, and present it [...]

My side project, GrabPERF, is looking for a few good measurement locations.
Right now, there are only five measurement locations, two of which are in my basement, on my personal Internet connection. I am hoping, through this pledge drive, to find a number of additional locations. Areas desperately needed include:

East Coast, USA
West Coast, USA
Midwest, USA
UK
Asia-Pac
Southeast Asia
Australia [...]

I was futzing around with my WRT54G(L) last night and did something wrong. I thought I had bricked the damn thing. Much cursing and swearing ensued as I put a BEFSX41 on the front-end of the network (I have three of these; don’t ask why) and wandered upstairs with the lump of black and blue [...]

We are in the process of relocating the GrabPERF servers to new IP addresses. You may experience some weirdness as the DNS propagates, but this should die down in a couple of days.
If you do hit an issue, you can still reach the server at http://208.66.64.70/.
Technorati Tags: GrabPERF

As a Web performance analyst, this is the sort of graph that melts your mind and makes you want to scream at the gods|goddesses to rain a plague of locusts on the offending System|Network|Web Site Administrators.
Click for a larger version
This is a classic display of the “run in circles, scream and shout” problem identification and [...]

Updated September 16 2008 to reflect the numerous changes that have resulted since the original article was posted in 2005 – smp
Targeting Web site content to the specific visitors who view the site is a very important marketing advantage. Being able to track incoming visitors by the country that they originate from is an additional [...]

Here are the IP Block and Address allocation by registrar, as well as the number of officially allocated IP Addresses in each country (with 65536 Hosts or more) as of September 22, 2005 00:30 UTC.
This data has been extracted from the GrabIP database

IP REGISTRAR BREAKDOWN

registry NUM_HOSTS NUM_BLOCKS
——– ———- ———-
arin [...]

Here are the IP Block and Address allocation by registrar, as well as the number of officially allocated IP Addresses in each country (with 65536 Hosts or more) as of August 29, 2005 00:30 UTC.
This data has been extracted from the GrabIP database

IP REGISTRAR BREAKDOWN

registry NUM_HOSTS NUM_BLOCKS
——– ———- ———-
arin [...]

Here are the IP Block and Address allocation by registrar, as well as the number of officially allocated IP Addresses in each country (with 65536 Hosts or more) as of August 17, 2005 00:30 UTC.
This data has been extracted from the GrabIP database

IP REGISTRAR BREAKDOWN

registry NUM_HOSTS NUM_BLOCK
——– ———- ———
arin [...]

Today, by special delivery, I got notice that FIOS is available at my house.
I called Comcast and asked how they were going to match this offer. They offered me $29.95/mo. for 6 months.
Now, because of my unique situation (i.e., requiring a semi-permamnent IP address to allow people to access my servers), I may be stuck [...]


About this blog

Stephen Pierzchala is one of a 10-year veteran of the Web performance field who also writes on topics that interest his non-linear world-view.

Contact

stephen@pierzchala.com

+1 (508) 410-3865