|
Steve Riggins,
Software Deveoper
|
With this option Apache does a reverse DNS lookup on the server IP address that the client connected to in order to work out self-referential URLs.
The ip-address is mandatory, the fqdn and ident fields may be "-" depending of how you have configured Squid with respect to reverce DNS lookups and indent lookups.
Enable DNS lookups on your web server , so that each IP address is translated in real-time.
|
|
Mike Enlow,
Internet Marketer
|
Although it is possible to filter by host name, we don't recommend it because it requires that the server do a DNS reverse lookup (to convert the IP address to the host name) on every request.
A possible work around to the theft of service attack described above would be to perform a reverse DNS lookup on the ip address returned by the forward lookup and compare the two names.
A forward lookup query resolves a DNS name to an IP address and is the most common DNS query.
|
|
Dave Simons,
Internet Entrepeneur
|
Each is configurable—a DNS lookup for IP, for IPX a NetWare server query for login names, for Microsoft NetBIOS login names are found for each hard address.
If neither of these is present then the default server action is to do a DNS lookup on the client's IP address to obtain the hostname of the client for logging purposes.
If your web server is only logging numeric IP address you should turn on DNS lookups in Summary on the Options configuration page.
|
|
|
