I recently upgraded my HPDV7 laptop to 11.3 (Very smooth!).
I have been using knetworkmanager for a while as it seems to be a more friendly interface for adding and managing new wireless connections while on the road.
When at home, I sometimes use wired (eth0), sometime wireless (802.11n), sometimes both.
I have been frustrated since starting to use knetworkmanager (back at 11.0?) that a Hostname did not appear at my router (a Linksys310 running DD-WRT). My other linux boxes (1 SuSE, 1 Debian) run under ifup with static addressing, so I did not have a good frame of reference.
After reviewing several references on-line and numerous dead-end forum items on the topic, I have found this works:
((Replace ‘HPDV7-Linux’ with your host name)
Modify file /etc/dhclient.conf
#cjm adds based on search of various forums send host-name "HPDV7-Linux"; supersede host-name "HPDV7-Linux";
Modify file /etc/NetworkManager/nm-system-settings.conf
#cjm add per archlinux.org discussion [keyfile] hostname = HPDV7-Linux
As a test, I disabled wireless networking in KNetworkManager, removed the RJ11 cable, then went to the DD-WRT STATUS-LAN window and deleted the DHCP leases that had been established for both interfaces.
On replugging the RJ11, a new Lease appeared for the eth0 interface, with the hostname properly showing.
When wireless was re-enabled, a new Lease for the wireless link appeared, it shows with the desired hostname, and the eth0 interface goes to “*” as it’s hostname.
After disabling the wireless connection again, then cycling the RJ11 cable out then back in, the existing lease for eth0 once again had the desired hostname.
I am not sure if it is NetworkManager or DD-WRT that ensures only one instance of the hostname in the router table.
This seems to be rather low-level messing about; is there a better way to achieve this?
NetworkManager - ArchWiki