S.Anand Kr wrote:
> I have got a Linux based DNS setup for our network. Using NSLOOKUP,
> setting my domain server as server and entering one of our servers' IP I am
> getting the name of my server back and vice-versa. This shows that reverse
> IP mapping is correctly configured.
>
> But when I am trying to ftp "ftp.tislabs.com" getting the following mesg.:
>
> " $ ftp ftp.tislabs.com
> Connected to portal.gw.tislabs.com
> 520 - This FTP server required the ability to perform reverse DNS
> lookups on all addresses connecting to it.
> We cannot perform this on the currect connection.
> 421 Service not available, remote server has colosed connection.
> "
But has the relevant in-addr.arpa domain been delegated to your DNS
server? If it hasn't, then your clients (hosts which use your DNS
server for recursive queries) will work, but others won't.
Using nslookup to query *your* DNS server doesn't tell you much about
what results other people will get.
--
Glynn Clements <[EMAIL PROTECTED]>
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