Configuration Example, Security
Tunneling sessions via Plink
Plink stands for PuTTY Link and is a command-line connection tool similar to Unix ssh. As a networking consultant I often need to support customers from remote locations. Access to their networking equipment is mostly blocked from unknown locations. Sometimes it is allowed to directly access networking equipment, like a company firewall, from a known … Read More
Cacti – Superlinks not working
After upgrading Cacti, like shown in the previous post, the Superlinks plugin stopped working correctly. When opening a Superlink tab I got a blank page in Google Chrome or a half page in Internet Explorer and Opera, like shown below. After some Googling I found the solution for this problem on a Cacti forum. The … Read More
Configuration Example, Management
Upgrade Cacti 0.8.x
A lot of people use the CactiEZ virtual appliance to install a running Cacti environment. The latest CactiEZ virtual appliance (CactiEZ v0.6) uses Cacti v0.8.7c with Plugin Architecture 2.2. Of course a lot of people are developing Cacti and the latest stable version is Cacti v0.8.7g with Plugin Architecture 2.8. I always have trouble with … Read More
STP successor – CiscoNL
I just watched a online movie on the CiscoNL – Technology site about the successor for Spanning Tree Protocol in the near future. The movie can be found here (language: Dutch).
Cisco Virtual Com
It took some time, but Cisco started to migrate from the blue RJ-45 based console cable to an USB based console cable. The latest types of routers and switches are equipped with both types of connections or only with the USB based connection, like the new IBM blade switches. The picture below shows the console … Read More
Catalyst 3750X licensing
While making a kit list for a network design with Cisco Catalyst 3750X switches, I got confused while looking at the different licensing features. The Cisco Catalyst 3750X switches are available with multiple licensing options, which can be upgraded. A new switch can be ordered with two licensing options. These are LAN Base (Enhanced Intelligent … Read More