I must admit that I haven't given the whole IPv6 issue much thought. It is good that you/users provide feedback, it is more an OS thing I think/hope.
On 14 Jun 2014, at 11:37, Luc Fabresse <[email protected]> wrote: > Hi Sven, > > $ telnet localhost 1701 > works perfectly but I noticed that it first tries to connect to ::1 and then > switch to 127.0.0.1 > > Trying ::1... > telnet: connect to address ::1: Connection refused > Trying 127.0.0.1... > Connected to localhost > > but I suspected that curl does the same and do not fallback to 127.0.0.1 > and yes this one works: > > curl --ipv4 http://localhost:1701 > > so by default my curl works on ipv6 > > I do not know why ::1 is before 127.0.0.1 on my mac 10.9.3. > Is there a global option? > in /etc/hosts 127.0.0.1 if first > > anyway, thanks > problem solved and not related with Zinc ;-) > > Luc > > > 2014-06-14 11:03 GMT+02:00 Sven Van Caekenberghe <[email protected]>: > Luc, > > I have seen this kind of weirdness before, but I mostly see it with ab > (apache benchmark tool). I really have no idea. Have you tried with telnet to > do a manual HTTP request ? > > $ telnet localhost 1701 > Trying 127.0.0.1... > Connected to localhost. > Escape character is '^]'. > GET /random HTTP/1.1 > Host:localhost:1701 > > HTTP/1.1 200 OK > Content-Type: text/plain;charset=utf-8 > Content-Length: 64 > Date: Sat, 14 Jun 2014 08:58:48 GMT > Server: Zinc HTTP Components 1.0 > > EF97C091498F3FEA3F79F65D36C40ECAFD116A68BA31F45D027DB61EBDD1579 > ^] > telnet> close > Connection closed. > > You could also try using the same or a second Pharo image to do the request. > > $ ./pharo Pharo.image eval "ZnClient new get: 'http://localhost:8080/random'" > '766EF4E6E5664EF4C5163D30125B5C35BFE2AED408835CB6D6206DF0A7A15FD > ' > > In any case, the server socket used is normally listening on all interfaces > [0.0.0.0] > > Sven > > On 14 Jun 2014, at 09:17, Luc Fabresse <[email protected]> wrote: > > > > > > > 2014-06-14 6:04 GMT+02:00 Ben Coman <[email protected]>: > > Luc Fabresse wrote: > >> 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 > > maybe http://sourceforge.net/p/curl/bugs/1337/ > > > > Humm, I use curl 7.36.0, so yes perhaps this bug fix is not integrated... > > > > Anyway, I was also suspecting curl but I tested with server: Apache on port > > 8888 and here curl works: > > > > httpd 621 luc 5u IPv6 0x6ea19c1d988f10db 0t0 TCP *:8888 <-- > > same as Zinc > > > > but both: > > > > curl http://127.0.0.1:8888 > > curl http://localhost:8888 > > > > are working. > > > > wget always works (Apache and Zinc): > > > > wget -qO- http://127.0.0.1:8888 > > wget -qO- http://localhost:8888 > > > > Thanks Max and Ben, > > > > Luc > > > > >
