edge allow localhost loopback
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In networking localhost is a hostname that is used to refer to
this computer or the local machine. It is a loopback interface that is usually mapped to the IPv4 address 127.0.0.1, but any IP address from subnet 127.0.0.0/8 could be used for this purpose, although not all addresses are supported by all operating systems. In IPv6 networking localhost resolves to the address ::1.
Loopback (also: loop-back) is often used for testing purposes, and refers to the process of routing packets back to their source without processing or modification. An operating system's virtual loopback interface can be used by network applications when sending data to the same machine. The IPv4 address space 127.0.0.0/8 and the IPv6 address ::1/128 are reserved for loopback interfaces, and the most common IPv4 address is 127.0.0.1.
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