Welcome!
Welcome to the new web site for Les Bell and Associates, which we are building to replace our old Lotus Domino server, now retired. Look for new content to appear gradually as we import old content and write new - but not much is going to appear until after Les submits his thesis!
Next CISSP Fast Track Review Course
Our CISSP Fast Track Review course is next scheduled to run in Sydney, from 27th - 31st May, inclusive. For bookings, see http://www.alctraining.com.au/course_index.php?sched=3.
Dynamic DNS Updates with TSIG for Security
Many network administrators have eased their workload by switching to using a DHCP server to configure client machines. In most cases, these machines do not run any services, so other machines never want to contact them, and so the lack of a corresponding entry in the domain name service is not a problem.
However, there are times when a machine requires a valid entry in the DNS. Traditionally, DNS has been set up by creating entries - called resource records - in text files called zone files. A typical address record for a host would look like this:
alpha IN A 10.0.0.52
SSH for Remote Access
Most system administrators soon find that working at the command line is the best way to work, for several reasons:
- Low bandwidth
- Ubiquity
- Scripting
In this article, I'll describe ways to make use of SSH for fast, easy access to multiple systems with good security. Instructions are provided for both Windows and Linux clients.