On 4/30/12 4:14 PM, "Augie Schwer" <augie.sch...@gmail.com> wrote:
> I think you've all missed the netmask there, 10.0.0.2 is in that range.
>
> augie@augnix:~$ sudo ifconfig lo:1 10.0.0.1 netmask 255.255.255.224
>
> augie@augnix:~$ ifconfig lo:1
> lo:1 Link encap:Local Loopback
> inet addr:10.0.0.1 Mask:255.255.255.224
>
> augie@augnix:~$ ping 10.0.0.2 -c 1
> PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
> 64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.027 ms
>
> --- 10.0.0.2 ping statistics ---
> 1 packets transmitted, 1 received, 0% packet loss, time 0ms
>
> Given all that, can anyone suggest a reason why Bind won't listen on
> that address?
No, we all saw the netmask.
A few tried to point out the answer...you first need to get the desired
aliases UP on the system for BIND to listen-on.
For example, loopback is 127/8 so I can ping all those addresses:
OPS:507 r...@dev-ops-test11.vega:mhoskins# 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:16436 Metric:1
RX packets:32 errors:0 dropped:0 overruns:0 frame:0
TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8148 (7.9 KiB) TX bytes:8148 (7.9 KiB)
OPS:508 r...@dev-ops-test11.vega:mhoskins# ping 127.0.0.2
PING 127.0.0.2 (127.0.0.2) 56(84) bytes of data.
64 bytes from 127.0.0.2: icmp_seq=1 ttl=64 time=0.012 ms
--- 127.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.012/0.012/0.012/0.000 ms
OPS:509 r...@dev-ops-test11.vega:mhoskins# ping 127.0.0.3
PING 127.0.0.3 (127.0.0.3) 56(84) bytes of data.
64 bytes from 127.0.0.3: icmp_seq=1 ttl=64 time=0.011 ms
--- 127.0.0.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.011/0.011/0.011/0.000 ms
However, I can't bind daemons to 127.0.0.2, etc. until I configure lo:0,
etc. aliases for those addresses! If your ifconfig output doesn't show the
IP you want to listen-on, it won't work. This is how it's been as long as
I've been alive.
If this is hard to believe, try adding a 10.0.0.2 (or whatever) loopback
alias with a netmask of 255.255.255.255 (the correct netmask for aliases)
and see how BIND behaves.
--
By nature, men are nearly alike;
by practice, they get to be wide apart.
-- Confucius
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