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An interface on linux has only one ip address. The "localhost" interface will either designate the ipv4 127.0.0.1 interface or the ipv6 ::1 interface. That's t
by user5994461 9y ago
An interface on linux has only one ip address.
The "localhost" interface will either designate the ipv4 127.0.0.1 interface or the ipv6 ::1 interface. That's the realm of undefined behavior and system specifics.
This whole IETF draft looks like a mess. They should reserve the names localhost4 and localhost6.
- pilif 9y ago> An interface on linux has only one ip address. absolutely not true. Neither for IPv4 nor IPv6, where it's even the default to have a multitude of addresses on an interface. > The "localhost" interface will either designate the ipv4 127.0.0.1 interface or the ipv6 ::1 interface. That's the realm of undefined behavior and system specifics. no it won't. My loopback (lo) interface has both 127.0.0.1 and ::1 as its addresses.
- justinclift 9y ago> An interface on linux has only one ip address. Just to point out, while the behaviour of any one OS is a useful data point for the discussion, it's not super useful to say "because OS 'foo' does things in a certain way, a well used programming language should limit it's design to that OS's way of doing things." :) Hmmm, I guess I'm trying to say that (at least) Go should be fairly OS agnostic about this.
- __david__ 9y ago> An interface on linux has only one ip address. Eh? $ ifconfig lo lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback)