Hi, I confirm isc-dhcp-server fails to start if there in not at least one valid subnet :
root@niel-3:~# LC_ALL=C apt-get install isc-dhcp-server Reading package lists... Done Building dependency tree Reading state information... Done isc-dhcp-server is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y Setting up isc-dhcp-server (4.3.1-5) ... root@niel-3:~# apt-get purge isc-dhcp-server Lecture des listes de paquets... Fait Construction de l'arbre des dépendances Lecture des informations d'état... Fait Les paquets suivants seront ENLEVÉS : isc-dhcp-server* 0 mis à jour, 0 nouvellement installés, 1 à enlever et 0 non mis à jour. Après cette opération, 675 ko d'espace disque seront libérés. Souhaitez-vous continuer ? [O/n] (Lecture de la base de données... 34710 fichiers et répertoires déjà installés.) Suppression de isc-dhcp-server (4.3.1-5) ... Purge des fichiers de configuration de isc-dhcp-server (4.3.1-5) ... Traitement des actions différées (« triggers ») pour man-db (2.7.0.2-5) ... root@niel-3:~# LC_ALL=C apt-get install isc-dhcp-server Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: isc-dhcp-server-ldap The following NEW packages will be installed: isc-dhcp-server 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 356 kB of archives. After this operation, 675 kB of additional disk space will be used. Get:1 http://ftp.us.debian.org/debian/ jessie/main isc-dhcp-server armhf 4.3.1-5 [356 kB] Fetched 356 kB in 1s (180 kB/s) Preconfiguring packages ... Selecting previously unselected package isc-dhcp-server. (Reading database ... 34697 files and directories currently installed.) Preparing to unpack .../isc-dhcp-server_4.3.1-5_armhf.deb ... Unpacking isc-dhcp-server (4.3.1-5) ... Processing triggers for man-db (2.7.0.2-5) ... Setting up isc-dhcp-server (4.3.1-5) ... Generating /etc/default/isc-dhcp-server... Job for isc-dhcp-server.service failed. See 'systemctl status isc-dhcp-server.service' and 'journalctl -xn' for details. invoke-rc.d: initscript isc-dhcp-server, action "start" failed. dpkg: error processing package isc-dhcp-server (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: isc-dhcp-server E: Sub-process /usr/bin/dpkg returned an error code (1) root@niel-3:~# echo >>/etc/dhcp/dhcpd.conf " subnet 192.168.65.0 netmask 255.255.255.0 { } " root@niel-3:~# LC_ALL=C apt-get install isc-dhcp-server Reading package lists... Done Building dependency tree Reading state information... Done isc-dhcp-server is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y Setting up isc-dhcp-server (4.3.1-5) ... root@niel-3:~# -- François-Régis -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org