[Bug 1545674] Re: Unable to disable isc-dhcp-server

[rajivcj]

Hi,

I upgraded my ubuntu distribution to 14.03 and isc-dhcp-server was
upgraded to the latest version   " 4.2.4-7ubuntu". I wanted to stop the
service temporarily with the init script like below.

 root@###### /etc/init.d/isc-dhcp-server stop
 * Stopping ISC DHCP server dhcpd

It showed a status that it was stopped successfully, but the process was
not killed and the service was still providing ips to the hosts in the
network.

netstat -tulpn | grep dhcp
udp 0 0 0.0.0.0:39801 0.0.0.0:* 20963/dhcpd
udp 0 0 0.0.0.0:67 0.0.0.0:* 20963/dhcpd
udp6 0 0 :::3953 :::* 20963/dhcpd

Later I realized that the service stopped correctly with the below
command

service isc-dhcp-server stop

Guess it has something to do with upstart, but does that mean that the
init script will not work anymore in the upcoming versions?

** Changed in: isc-dhcp (Ubuntu)
       Status: New => Invalid

** Converted to question:
   https://answers.launchpad.net/ubuntu/+source/isc-dhcp/+question/285610

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https://bugs.launchpad.net/bugs/1545674

Title:
  Unable to disable isc-dhcp-server

Status in isc-dhcp package in Ubuntu:
  Invalid

Bug description:
  I recently upgraded isc-dhcp-server to version 4.2.4-7ubuntu12.4 in
  ubuntu 14.04.3 LTS .

  The init script shows it is stopping the service,

  root@###### /etc/init.d/isc-dhcp-server stop
   * Stopping ISC DHCP server dhcpd

  But the process still runs and is listening on udp port.

  netstat -tulpn | grep dhcp
  udp        0      0 0.0.0.0:39801           0.0.0.0:*                           20963/dhcpd   
  udp        0      0 0.0.0.0:67              0.0.0.0:*                           20963/dhcpd   
  udp6       0      0 :::3953                 :::*                                20963/dhcpd   

  Even after stopping the service, this server provides ip to new hosts
  in the network.

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