PREIN
/bin/sh
/usr/share/rpm-helper/add-user dhcp $1 dhcpd /dev/null /bin/false
PREUN
/bin/sh
/usr/share/rpm-helper/del-service dhcp $1 dhcpd
POSTIN
/bin/sh
/usr/share/rpm-helper/add-service dhcp $1 dhcpd /usr/bin/systemd-tmpfiles --create dhcpd.conf # New dhcpd lease file if [ ! -f /var/lib/dhcpd/dhcpd.leases ]; then touch /var/lib/dhcpd/dhcpd.leases fi