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→Display the dhcp lease
{{Needs review}}
{{Needs review}}
== Display the dhcpd lease==
== Display the dhcp lease==
according in [[bugzilla:2641]] you have a script which display in your terminal how many computers are connected their ip, mac adress and their expiration of dhcp leases.
according in [[bugzilla:2641]] you have a script which display in your terminal how many computers are connected their ip, mac adress and their expiration of dhcp leases.
# - added "GMT" indicator to Expiration col head
# - added "GMT" indicator to Expiration col head
#
#
echo "Source Host MAC Address IP Address Expiration (GMT)"
echo "Source Host MAC Address IP Address Expiration (GMT)"
echo "============= ========== ================= =============== ================"
echo "============= ========================= ================= =============== ================"
#
#
awk ' { out = ""} \
awk ' { out = ""} \
| grep active \
| grep active \
| sed -e s/'[{};" ]'/\ /g \
| sed -e s/'[{};" ]'/\ /g \
| awk '{ printf "%-13s %-10s %-17s %-15s %-10s %-5s\n", "dhcpd.leases", $6, $5, $1, $2, $3 }'
| awk '{ printf "%-13s %-25s %-17s %-15s %-10s %-5s\n", "dhcpd.leases", $6, $5, $1, $2, $3 }'
#
#
| grep : \
| grep : \
| sed -e s/'[{};\" ]'/\ /g -e s/\.`config get DomainName`// \
| sed -e s/'[{};\" ]'/\ /g -e s/\.`config get DomainName`// \
| awk '{ printf "%-13s %-10s %-17s %-15s %-15s \n", "dhcpd.conf", $1, $2, $3, "reservation"}'
| awk '{ printf "%-13s %-25s %-17s %-15s %-15s \n", "dhcpd.conf", $1, $2, $3, "reservation"}'
#
#
# Finally, grab the current arp table
# Finally, grab the current arp table
arp -a \
arp -a \
| sed -e s/\\..*\(/\ / -e s/\)// \
| sed -e s/\\..*\(/\ / -e s/\)// \
| awk '{ printf "%-13s %-10s %-17s %-15s %-15s \n", "arp", $1, $4, $2, "n/a"}'
| awk '{ printf "%-13s %-25s %-17s %-15s %-15s \n", "arp", $1, $4, $2, "n/a"}'
==customize the lease duration==
== Create custom template fragments ==
You can customize the lease duration for the dhcp server ('''dhcpd''') in SME using these instructions.
You can customize the lease duration for the dhcp server ('''dhcpd''') in SME using these instructions.
The commands below will create custom template fragments for <tt>default-lease-time</tt> and <tt>max-lease-time</tt>, re-generate <tt>/etc/dhcpd.conf</tt>, and restart the '''dhcpd''' service in order to activate your changes.
The commands below will create custom template fragments for <tt>default-lease-time</tt> and <tt>max-lease-time</tt>, re-generate <tt>/etc/dhcpd.conf</tt>, and restart the '''dhcpd''' service in order to activate your changes.