Re: psql connection via localhost or 127.0.0.1

Il 06/11/14 16:47, John R Pierce ha scritto:
> On 11/6/2014 7:36 AM, Edoardo Panfili wrote:
>>> grep localhost /etc/hosts
>> 127.0.0.1 localhost
>> 127.0.1.1 host.host host
>
> wahaaaa?
>
> whats the output of ...
>
> # ifconfig lo
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:65536 Metric:1
> RX packets:18367154 errors:0 dropped:0 overruns:0 frame:0
> TX packets:18367154 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:23279985092 (21.6 GiB) TX bytes:23279985092 (21.6
> GiB)
>
# ifconfig lo
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:3306 errors:0 dropped:0 overruns:0 frame:0
TX packets:3306 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2544659 (2.4 MiB) TX bytes:2544659 (2.4 MiB)

> note that net mask? the loopback interface is the entire
> 127.0.0.0/8 network you can't put a host at 127.0.1.x and expect it
> to work right.
>
> you should instead use one of the RFC1918 reserved subnets for a
> private network, within 10.0.0.0/8 or 172.16.0.0/12, or
> 192.168.0.0/16 (you can use these with any mask size you want, for
> instance, /24 is usually used with 192.168.x.y)
I can't figure why 127.0.1.1 is there (I will remove it) is an (almost)
new installation on a virtual machine,

Edoardo