Networking is very interesting and I’m sure many of us would like to experiment with it, but the unavailability of laboratories with sufficient computers is a stumbling block. What if I tell you that you can turn any computer into a network device at no extra cost?
Networking
Balancing Traffic Across Data Centres Using LVS
In the previous article in this series (‘Data Centre Redundancy’, page 56, April 2009) we got an overview of the architecture associated with data centre redundancy. An important aspect of this is to make sure that the traffic is evenly distributed across all the data centres in order to fully utilise the available capacity. In this concluding article, we will discuss the use of LVS (Linux Virtual Server) to load balance the traffic across data centres.
Pages Full of Data
In the Part 4 of “Building a Server from Scratch” series, we learn how to set up a Web and database server.
Building A Highly Available Nginx Reverse-Proxy Using Heartbeat
Last month we discussed how to set up a highly available cluster of Web servers that are load balanced using nginx. One shortcoming in that set-up was the reverse-proxy server itself, which on crashing, will cause the entire Web server cluster to go down. Therefore, we would need to build high-availability in the reverse-proxy server itself.
Recipes for Networking
It’s always fun to try out different hacks under the GNU/Linux freedom platform. The pride of becoming a command-line wizard makes everyone stay close to the CLI. Moreover, the CLI vests you with the ultimate power to control your machine.
Vulnerability Assessment: Have You Done it Yet?
Regular vulnerability assessment of your systems/networks is a must. OpenVAS is one such tool that can assist you.
Sniff! Sniff!! Who Clogs My Network?
Some network connectivity and troubleshooting tools.
It’s So Easy to See Your Network Activity, hah!
Just because you’re using a WEP key on your wireless access point doesn’t mean you’re safe from crackers in the neighbourhood.
Graph Your Network!
Graphs always make work easier, especially when we need to monitor things. This article discusses Cacti, a simple graphical network monitor.
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