Yep. It’s official.  The IPv4 space allocated to ARIN for North America has been officially exhausted:

On 24 September 2015, ARIN issued the final IPv4 addresses in its free pool. ARIN will continue to process and approve requests for IPv4 address blocks.  Those approved requests may be fulfilled via the Wait List for Unmet IPv4 Requests, or through the IPv4 Transfer Market.  […]In the future, any IPv4 address space that ARIN receives from IANA, or recovers from revocations or returns from organizations, will be used to satisfy approved requests on the Waiting List for Unmet Requests. If we are able to fully satisfy all of the requests on the waiting list, any remaining IPv4 addresses would be placed into the ARIN free pool of IPv4 addresses to satisfy future requests.

See: ARIN Website

Fat chance of anyone returning any “unused” space.  It’s a hoarder/squatter’s market now.

Updated several “beginner” level tutorials in our Basic Concepts tutorials section.  Enjoy!

InetDaemon.Com started seeing an increase in fake registrations at the site, around 10-20 daily up from around 1-2 per week.  Periodically, I go back and clean out old unused accounts.  This is just part of routine maintenance and security any site using a dynamic web application like WordPress should be doing.  More than 99% of these bogus accounts were never used, so this means that the people (or bots) didn’t sign up to use the site, but registered for another purpose.   Since we don’t sell anything here or take credit card numbers, I can only assume they want to harvest the local logins and email addresses, which are the only thing we have stored here. I have shut down the membership registration functions temporarily until I can figure out a solution that is so unpalatable to the spammers and other criminals that it’s not worth their time.

Since I’m an IT professional with more than 10 years experience with WordPress, I know the right things to do to protect a WordPress instance.  More on WordPress Security later.

In 1999 I wrote a series of Border Gateway Protocol tutorials including a tutorial on autonomous system numbers. Since then AS numbers have been changed from 16-bit to 32-bit numbers to avoid running out of identifiers for BGP sessions. I have updated theAS numbers tutorial with a table that outlines what each range of autonomous system numbers are used for.

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