Saturday, April 9, 2016

Should 127.0.0.1 and ::1 both be included in /etc/hosts file?



I am new to unmanaged VPS servers and in addition IPv6. Is it necessary to include 127.0.0.1 AND ::1 for localhost in /etc/hosts files for IPv6 enabled servers, or is ::1 alone enough?


Answer



Yes, 127.0.0.1 should be left. IPv6 is enabled, but IPv4 is still used.


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