[Bug 533781] Re: [bind9 packaging] DNS no longer works after uninstall

[André Pirard]

** Description changed:

  Binary package hint: bind9
  
  Using Ubuntu 8.10 (Intrepid).
  I installed bind9 as a caching nameserver.
  (BTW, kudos for the simplest BIND installation ever seen !!!)
  But BIND could overload my router's NAT table with UDP DNS requests.
  
  So, ... I uninstalled bind9.
  BIND did not stop.  I had to restart Ubuntu.  But /etc/resolv.conf  remained like this :
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
  nameserver 127.0.0.1
  search lan
  
  ==> DNS no longer worked.
  
  Uninstall cleanup did not restore a working DNS state.
  
  resolvconf's README is suggesting this :
  $ sudo echo "nameserver 192.168.0.1" | resolvconf -a dummy
  /sbin/resolvconf: line 79: dummy_new.4139: Permission denied
  
  Turned on manual mode : workaround :
  /etc/resolvconf/run/interface/ contained lo.named and NetworkManager
  I removed  lo.named  leaving  NetworkManager
  
- /etc/resolv.conf  became :
+ After the next DHCP renewal,  /etc/resolv.conf  became :
  # Generated by NetworkManager
  domain lan
  search lan
  nameserver 192.168.0.1
  nameserver 192.168.0.1
  
- Strange contents, but working again.
+ Strange contents, but DNS was working again.

-- 
[bind9 packaging]  DNS no longer works after uninstall
https://bugs.launchpad.net/bugs/533781
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