Rwhois Digest, Vol 38, Issue 1

[Antonio Querubin]

On Thu, 12 Jul 2007, Help At FDCservers.net wrote:

> I have one  question.
> How can i make rwhoisd working on ipv6 and ipv4 .If i compiled
> rwhoisd with ipv6  support  will only  bind  to  ipv6  socket.
> I try  installing it on freeBSD 5.4,6.0,6.1 centos 4.x and gentoo
> 2006.1 just to make sure that is not something with the OS.

You may be running into a problem where some systems are configured by 
default to prevent the socket API from servicing both IPv4 and IPv6 
through a single socket by disallowing the use of IPv4-mapped addresses. 
Try adding the following to your FreeBSD /etc/rc.conf to re-establish RFC 
compliant behaviour in the socket API.

ipv6_ipv4mapping="YES"

The default for the above is on for FreeBSD 4.x but it was turned off in 
FreeBSD 5.x and later.

However, when you turn this on you may want to re-examine the behaviour of 
any packet filtering service running on that server after the change and 
adjust ACLs as required.

As for Linux, I thought that at least CentOS 4.x allowed IPv4-mapped 
addresses so you may have a slightly differnt issue there.

Antonio Querubin
whois:  AQ7-ARIN