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Re:Ask HN: What TLD do you use for local development? by healthnutter on Monday September 26, 2016 @02:37AM (#12579712)
One trick is to use non-routable (e.g. 192.168.0.0/16) IP addresses with DNS records for subdomains of your company's domain name, e.g. devserver123.mycompany.com routes to 192.168.100.123
Re:Ask HN: What TLD do you use for local development? by bitJericho on Monday September 26, 2016 @02:55AM (#12579805)
This gives insight to your internal network structure to the public. It's better to run a local DNS server for internal use.