What's the difference between IP address 0.0.0.0 and 127.0.0.1?
https://serverfault.com/questions/78048/whats-the-difference-between-ip-address-0-0-0-0-and-127-0-0-1
WEBOct 25, 2009 · 0.0.0.0, in this context, means "all IP addresses on the local machine" (in fact probably, "all IPv4 addresses on the local machine"). So, if your web server machine has two IP addresses, 192.168.1.1 and 10.1.2.1, and you allow a web server daemon like Apache to listen on 0.0.0.0, it will be reachable at both of those IP addresses. But only to ...
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