Red Hat Bugzilla – Bug 540887
Need to add DHCP_HOSTNAME
Last modified: 2010-04-13 19:27:25 EDT
Description of problem:
nm-applet has a place to add DHCP_CLIENT_ID, but not DHCP_HOSTNAME.
When connecting eth0 to my corporate lan (which must use some sort of cisco box), without setting DHCP_HOSTNAME, my machine is not in DNS.
I have to manually add DHCP_HOSTNAME to /etc/sysconfig/network-scripts/if-cfg.eth0.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
See a lso bug #510253
I can confirm this bug.
I have a dhcp/bind setup with ddns and when DHCP_HOSTNAME is not present in the client then the dns is not updated.
NetworkManager only allows setting of DHCP_CLIENT_ID, which then obviously breaks the ddns setup.
Manually adding the DHCP_HOSTNAME=... to the interface configfile is a temporary workaround but not very desirable
actually grepping in /etc/sysconfig/network-scripts for DHCP_CLIENT_ID show NO matches. so the client id isn't used in the interface scripts.
maybe you confused client id with hostname / forgot to add support for client id to the interface scripts?
I think most of the time NM should simply send your machine's current persistent hostname (which is set via HOSTNAME in /etc/sysconfig/network) to the DHCP server instead of having a text box for it.
it should, but that's not what I'm seeing.
it's what the default nw i/f scripting does. NM apparently doesn't do this
I'm not certain that NM currently does that actually, I'll need to check. I suggest the behavior is this:
1) if a configured hostname is set in the connection profile itself, use that
2) otherwise, if send-hostname is set in /etc/dhclient-eth0.conf, use that
3) otherwise, if the system has a persistent hostname (from /etc/sysconfig/network) use that
4) otherwise, send no hostname
seems ok and logical
I would go a bit further though:
0) add a bit of user interface to 'Edit connections' so that the user can configure the hostname that is sent, and persist this in the /etc/sysconfig/network-scripts/ifcfg-xxxx files. use the order you suggested to provide the default in case the variable is not set.
*** This bug has been marked as a duplicate of bug 488975 ***