On Mon, 2010-06-14 at 12:39 +0100, Timothy Murphy wrote: > When my son tries to connect to our LAN with his Blackberry, > the request is first refused and then accepted. > Why is this? It doesn't look like it is accepted, the next request is a different thing (not a "forward map"). Though, on the other hand, is it really the client asking for that hostname, or your DHCP is trying to set that name into the DNS records, itself, and failing at that. Updating has to be allowed on the DHCP and DNS servers, and there has to be an method of allowing it (e.g. a shared key file between DNS and DHCP server). When a DHCP client requests an address, there's (potentiallY) several parts to the request, all handled (and logged) separately. The client may ask to use a particular IP, it's given an IP, the client can ask to use a particular hostname, it may be given a hostname, its IP may be written into the DNS records, it's hostname may be written into the DNS records. > Why does he require authorization (at first), > and how could I give it to him? It stops rogue users connecting and asking to be given a hostname like "mail", for example, and insert themselves as your mail server. To allow clients to set their own domain names into your DNS/DHCP records, you need to configure your servers to allow that. That said, I see no point in it, and if you do, you must lock out any hostnames that would subvert something else. On my LAN, my DHCP server does update records in my DNS server, but it updates them with the names that the server doles out. -- [tim@localhost ~]$ uname -r 2.6.27.25-78.2.56.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines