[Bug 1045616] Re: DHCP server handing out DNS server addresses but DHCP client does not write these to resolv.conf

[Thomas Hood]

David T wrote in comment #8:
> - Loaded Ubuntu 12.04
> - Tried to install [a package]
> - couldn't resolve dns

Possibly this is just another instance of bug #1000244.

David T, can you reproduce the failure?

** Description changed:

  ARGH!!!!! Every release causes new problems >:(
  
  If you have:
  linux DHCP server on the network with options:
  option domain-name "xyz.com";
  option domain-name-servers 4.2.2.2, 4.2.2.3;
  
- In Ubuntu 10.x it works fine and pulls the DHCP client pulls the DNS
- servers from the DHCP fine.
+ In Ubuntu 10.x it works fine and the DHCP client pulls the DNS servers
+ from the DHCP fine.
  
  Ubuntu 12.x - It's broken.
- Trying to fix with: adding to /etc/network/interfaces 
- dns-nameservers 4.2.2.2 4.2.2.3
- dns-search xyz.com
- FAIL. Because you have iface eth0 inet dhcp that option isn't read
  
- Try and configure with Network Manager from commandline because your running a server. 
- NOPE, network manager doesn't run from CLI commandline only GUI
+ Trying to fix with: adding to /etc/network/interfaces
+ 
+     dns-nameservers 4.2.2.2 4.2.2.3
+     dns-search xyz.com
+ 
+ FAIL. Because you have
+ 
+     iface eth0 inet dhcp
+ 
+ that option isn't read
+ 
+ Try and configure with NetworkManager from command line because you're
+ running a server. NOPE, NetworkManager doesn't run from CLI command
+ line, only GUI.
  
  Can't manually specify the DNS server in /etc/resolv.conf because it's
  always getting overwritten.
  
  What's the best option here? I think this might be a bug. Only option I
  haven't tried is using the head file from this description:
  
- Resolvconf has a /etc/resolvconf/resolv.conf.d/ directory that can contain “base”, “head”, “original” and “tail” files. All in resolv.conf format.
+ Resolvconf has a /etc/resolvconf/resolv.conf.d/ directory that can
+ contain “base”, “head”, “original” and “tail” files. All in resolv.conf
+ format.
+ 
  base: Used when no other data can be found
- head: Used for the header of resolv.conf, can be used to ensure a DNS server is always the first one in the list
- original: Just a backup of your resolv.conf at the time of resolvconf installation
- tail: Any entry in tail is appended at the end of the resulting resolv.conf. In some cases, upgrading from a previous Ubuntu release, will make tail a symlink to original (when we think you manually modified resolv.conf in the past)
+ 
+ head: Used for the header of resolv.conf, can be used to ensure a DNS server is 
+ always the first one in the list
+ 
+ original: Just a backup of your resolv.conf at the time of resolvconf
+ installation
+ 
+ tail: Any entry in tail is appended at the end of the resulting
+ resolv.conf. In some cases, upgrading from a previous Ubuntu release,
+ will make tail a symlink to original (when we think you manually
+ modified resolv.conf in the past)

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https://bugs.launchpad.net/bugs/1045616

Title:
  DHCP server handing out DNS server addresses but DHCP client does not
  write these to resolv.conf

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