[Pharo-dev] strange difference between localhost and 127.0.0.1 with a Zinc server on mac

[Luc Fabresse]

Hi,

I experiencing a strange difference between localhost and 127.0.0.1.

In Pharo I do:

(ZnServer startDefaultOn: 4444)
    onRequestRespond: [ :request | ZnResponse ok: (ZnEntity text: 'hello') ]

In bash:

$ lsof -Pi | grep Pharo
Pharo     2718  luc    7u  IPv4 0x1e64a2e9381f409b      0t0  TCP *:4444
(LISTEN)

I perfectly listen on port 4444 from all interfaces *

$ curl http://127.0.0.1:4444
hello

$ curl http://localhost:4444
curl: (7) Failed to connect to localhost port 4444: Connection refused
                *<- why ?*

localhost is correctly resolved on my mac
$ ping localhost
PING localhost (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.044 ms

I tested with other programs than Zinc to open listening sockets and it
works.

Any idea?

#Luc