network administration

Problems with accessing websites over local network using HaProxy and Pfsense

Recently I had problems with accessing websites over a network that was using HaProxy and Pfsense. The websites could be accessed without problems over the internet, but it was not possible to access the websites over local network. For example when connected to the network over VPN.

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Fetching PTR DNS records using Reverse DNS

Reverse DNS or RDNS is the process of fetching the host name for a given IP address. Reverse DNS works similarly to forward DNS.

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