Building an ACL

The different types of ACLs are first identified by the line number used. Standard IP ACLs use numbers in the range of 1 – 99 and 1300 – 1999. Extended ACLs use numbers in the range 100 - 199 and 2000 – 2699. Other types of ACLs which filter traffic utilizing other protocols such as Appletalk, DECNet, IPX, and XNS use other number ranges, however those are rarely used today. Named ACLs of course do...

Seizing Internet Domains

Homework Assignment from the past. The question of who, if anyone, had authority to seize the domain name of a questionable website first came to the forefront two years ago when the commonwealth of Kentucky attempted to take control of 141 domain names belonging to websites associated with online gambling. While most forms of online gambling are currently illegal in the United States, it was quite...

Pirate DNS

Some of the main characters in the peer to peer file sharing world, led by former Pirate Bay spokesperson Peter Sunde have announced their intentions to launch a competitor to the ICANN manged DNS system. ICANN is an independent non-profit organization, however it often complies with the wishes of the U.S. government. The alternative system will feature its own root server followed by a full naming...

Excessive Kaseya Database Size

For years, we had set Kaseya to maintain 30 days of log files for workstations and servers that we manage.  However, a matter arose that made it really attractive to have access to a larger amount of historical data as what we wanted to double check was well beyond 30 days out.  There's nothing that could be done in that case, but can this headache be eliminated moving forward?  Kaseya...

Mapping the Internet

One of my computer hobbies is distributed computing.  Distributed computing is a technique that allows a project go give volunteers a piece of software to run on their computer which will allow them to participate in the project. This piece of software will download data commonly referred to as a work unit.  It will use the volunteers computer to process the work unit, and then upload the...

Free CCNA Resources

After nearly 4 years, the Free CCNA Resources page has been updated to Version 2.0. Please follow the link and update your bookmarks to: Free CCNA Resources Version 2.0 Happy Studyi...