NetworkManager forces DHCP hostname or DNS reverse hostname to be used

Solution Unverified - Updated -

Issue

  • Server renames itself when doing DHCP
  • When enabling a system to get an IP via DHCP, and that IP address is registered in DNS under the DHCP domain, the system will change its hostname
  • DNS reverse lookup (PTR record) is used as hostname instead of "localhost"

Environment

  • Red Hat Enterprise Linux 7
  • NetworkManager-1.0.0-14.git20150121.b4ea599c.el7 and later
  • DHCP server which provides DHCP hostnames
  • IP address which has DNS reverse lookup (PTR) records (IP may be provided via DHCP)

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