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DescriptionAlexander Todorov
2011-05-04 19:22:09 UTC
Description of problem:
I'm using NAT networking for my virtual guests (KVM). In the XML file I have defined the example.com domain and a host which will be assigned static IP address and predefined hostname. The config looks like this:
<network>
<name>default</name>
<uuid>432d8cf4-16a3-4ff1-af5d-02f115fbc516</uuid>
<forward mode='nat'/>
<bridge name='virbr0' stp='on' delay='0' />
<domain name='example.com'/>
<ip address='192.168.122.1' netmask='255.255.255.0'>
<dhcp>
<range start='192.168.122.200' end='192.168.122.254' />
<host mac='52:54:00:bf:ae:e2' name='tester1.example.com' ip='192.168.122.12' />
<bootp file='pxelinux.0' server='192.168.122.11' />
</dhcp>
</ip>
</network>
When I create new guest and run the anaconda installer by default it uses DHCP and tries to guess the machine hostname automatically. The result is that IP address is assigned correctly but hostname is not. The `hostname' command reports "tester1" instead of "tester1.example.com"
Version-Release number of selected component (if applicable):
libvirt-0.8.1-27.el6_0.5.x86_64
dnsmasq-2.48-4.el6.x86_64
How reproducible:
always
Steps to Reproduce:
1. Cofigure NAT networking using the domain and host tags
2. Assign FQDN for your guest system
3. Install the guest using anaconda with all the default options. Specify the correct MAC address for the network interface1
Actual results:
hostname command doesn't report the FQDN.
Expected results:
hostname reports FQDN.
Additional info:
The side effect of this is that various other tools that rely on the FQDN being setup properly fail.
dnsmasq is started with this command line:
/usr/sbin/dnsmasq --strict-order --bind-interfaces --domain example.com --pid-file=/var/run/libvirt/network/default.pid --conf-file= --listen-address 192.168.122.1 --except-interface lo --dhcp-range 192.168.122.200,192.168.122.254 --dhcp-lease-max=55 --dhcp-no-override --dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile --dhcp-boot pxelinux.0,,192.168.122.11
The default.hostsfile looks like:
52:54:00:bf:ae:e2,192.168.122.12,tester1.example.com
Hi, Alexander,
What's your guest os, I can't reproduce this problem on my rhel6 box, with a rhel6.1 client guest. I'm doubting command "hostname" in your guest os doesn't
report the whole hostname, could you check it?
# cat /etc/sysconfig/network
# hostname -d
If it's really "tester1", without domain name, then the problem is complicated I guess, relates to guest os.
Comment 2Alexander Todorov
2011-06-01 13:49:49 UTC
I've tried with 5.6 and 6.0 guests IIRC. will have to re-test with 6.1.
Cann't reproduce this bug with rhel6.1 guest.
1. define the network with the same configure in bug description
2. Install the guest using anaconda with all the default options. Specify the same MAC address during installation as the mac defined in virtual network
3. get the hostname: tester1.example.com during installation via anaconda
4. re-check the hostname after reboot the guest, get the
# hostname
tester1.example.com
pkgs:
libvirt-0.8.7-18.el6.x86_64
dnsmasq-2.48-4.el6.x86_64
qemu-kvm-0.12.1.2-2.160.el6.x86_64
guest os: http://download.englab.nay.redhat.com/pub/rhel/released/RHEL-6/6.1/Server/x86_64/os/
Alexander, I'm pretty sure this is the case, but just to make sure we've considered the possibility, you have confirmed that this works correctly on bare-metal, right?
Comment 6Alexander Todorov
2011-06-17 17:17:06 UTC
Hi all,
I've tested with a RHEL 6.1 GA guest and the issue still persists. The host is RHEL 6.0 + some updates.
Alexander, this functionality works for both QE and my team, so I really have to close this as works for me. I don't doubt that your machine is experiencing this behavior, so please reopen if you can reproduce it on a 6.1 host.
Description of problem: I'm using NAT networking for my virtual guests (KVM). In the XML file I have defined the example.com domain and a host which will be assigned static IP address and predefined hostname. The config looks like this: <network> <name>default</name> <uuid>432d8cf4-16a3-4ff1-af5d-02f115fbc516</uuid> <forward mode='nat'/> <bridge name='virbr0' stp='on' delay='0' /> <domain name='example.com'/> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.200' end='192.168.122.254' /> <host mac='52:54:00:bf:ae:e2' name='tester1.example.com' ip='192.168.122.12' /> <bootp file='pxelinux.0' server='192.168.122.11' /> </dhcp> </ip> </network> When I create new guest and run the anaconda installer by default it uses DHCP and tries to guess the machine hostname automatically. The result is that IP address is assigned correctly but hostname is not. The `hostname' command reports "tester1" instead of "tester1.example.com" Version-Release number of selected component (if applicable): libvirt-0.8.1-27.el6_0.5.x86_64 dnsmasq-2.48-4.el6.x86_64 How reproducible: always Steps to Reproduce: 1. Cofigure NAT networking using the domain and host tags 2. Assign FQDN for your guest system 3. Install the guest using anaconda with all the default options. Specify the correct MAC address for the network interface1 Actual results: hostname command doesn't report the FQDN. Expected results: hostname reports FQDN. Additional info: The side effect of this is that various other tools that rely on the FQDN being setup properly fail. dnsmasq is started with this command line: /usr/sbin/dnsmasq --strict-order --bind-interfaces --domain example.com --pid-file=/var/run/libvirt/network/default.pid --conf-file= --listen-address 192.168.122.1 --except-interface lo --dhcp-range 192.168.122.200,192.168.122.254 --dhcp-lease-max=55 --dhcp-no-override --dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile --dhcp-boot pxelinux.0,,192.168.122.11 The default.hostsfile looks like: 52:54:00:bf:ae:e2,192.168.122.12,tester1.example.com