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Posts by : Ajitabh Pandey

Author / 4 Posts
The author has more than 15 years of diversified IT industry experience in training, support and consulting.
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A proxy server works as an intermediary for requests from clients seeking resources from other servers. There are various types of proxy servers. In …

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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.

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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.

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Getting started with nginx, a powerful HTTP Web server/reverse proxy and IMAP/POP3 reverse proxy.