[Bug 1584759] Re: masking NetworkManager ineffective without also masking network-manager

[Martin Pitt]

Correct, network-manager is the canonical name that init.d scripts refer
to.

** Package changed: systemd (Ubuntu) => network-manager (Ubuntu)

** Changed in: network-manager (Ubuntu)
       Status: New => Won't Fix

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Title:
  masking NetworkManager ineffective without also masking network-
  manager

Status in network-manager package in Ubuntu:
  Won't Fix

Bug description:
  On xenial (systemd 229), 'systemctl mask NetworkManager' is
  ineffective; I can still start the service (and in fact it starts on
  boot). This may be due to an interaction with an init.d script with a
  different name ("network-manager").

      root at test-paniikki:~# systemctl is-enabled NetworkManager network-manager
      enabled
      enabled
      root at test-paniikki:~# systemctl mask NetworkManager
      Created symlink from /etc/systemd/system/NetworkManager.service to /dev/null.
      root at test-paniikki:~# systemctl is-enabled NetworkManager network-manager
      masked
      masked
      root at test-paniikki:~# systemctl start NetworkManager; echo $?
      0
      root at test-paniikki:~# systemctl status --no-pager NetworkManager
      ● NetworkManager.service - Network Manager
         Loaded: loaded (/lib/systemd/system/NetworkManager.service; masked; vendor preset: enabled)
         Active: active (running) since Mon 2016-05-23 15:39:09 EEST; 9s ago
       Main PID: 6155 (NetworkManager)
          Tasks: 6 (limit: 512)
         CGroup: /system.slice/NetworkManager.service
                 ├─6155 /usr/sbin/NetworkManager --no-daemon
                 ├─6167 /sbin/dhclient -d -q -sf /usr/lib/NetworkManager/nm-dhcp-helper -pf /va...
                 └─6182 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-in...

  
  Only if 'network-manager' is also masked will the service fail to start:

      root at test-paniikki:~# systemctl mask network-manager
      Created symlink from /etc/systemd/system/network-manager.service to /dev/null.
      root at test-paniikki:~# systemctl stop NetworkManager
      root at test-paniikki:~# systemctl start NetworkManager
      Failed to start NetworkManager.service: Unit NetworkManager.service is masked.

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