On Tue, Jul 13, 2010 at 02:56:15PM -0400, Richard Huddleston wrote:
> i'm trying to get the nbd-server 1:2.9.14-2ubuntu1 authfile to work
> under ubuntu lucid
>
> it's correctly parsing
>
> 192.168.2.101
> 192.168.2.103
> 192.168.2.104
> 192.168.2.105
>
>
> but fails to parse
>
> 192.168.2.0/24
>
> and during a connection attempt nbd-server outputs
>
> Invalid entry '192.168.2.0' in authfile '/etc/nbd-server/allow', so,
> refusing all connections.
>
> what gives?
Logic reversal:
diff --git a/nbd-server.c b/nbd-server.c
index 52f777d..16d70f7 100644
--- a/nbd-server.c
+++ b/nbd-server.c
@@ -274,7 +274,7 @@ int authorized_client(CLIENT *opts) {
return 0;
}
*(tmp++)=0;
- if(inet_aton(line,&addr)) {
+ if(!inet_aton(line,&addr)) {
msg4(LOG_CRIT, ERRMSG, line, opts->server->authn
return 0;
}
> in addition, i'm confused by
>
> http://linux.die.net/man/5/nbd-server
>
> With /etc/nbd-server/allow containing the following:
>
> 127.0.0.1
> 192.168.0.0/8
> 192.168.1.1
>
> does 192.168.0.0/8 make sense?
>
> shouldn't it be either
>
> 192.0.0.0/8
>
> or
>
> 192.168.0.0/16
Probably, but (with the above fix) nbd-server doesn't care about the
bits that are masked away. You can specify 192.168.0.1/8, and it won't
give you an error.
--
The biometric identification system at the gates of the CIA headquarters
works because there's a guard with a large gun making sure no one is
trying to fool the system.
http://www.schneier.com/blog/archives/2009/01/biometrics.html
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