Dhcp server non static leases

NethServer Version: Nethserver 7
i have setup my dhcp server and it is working fantastically well. i have a problem with the other systems that are not static leased but they do get ip address from the dhcp. how can i delete these leases or what do i change this line

# Should be set when dnsmasq is definitely the only DHCP server on a
# network.

dnsmasq “forgets” the lease when the lease-time expires and no renewal has been done, so there is no real need to delete them.

If you do want to manually remove then, then stop dnsmasq, delete the entries from /var/lib/dnsmasq/dnsmasq.leases and re-start dnsmasq.


The reason I am concerned is that the systems not statically added to the
dhcp static leases are not allowing me to add other computers. How can I
change the dhcp server to non authoritative?


I’m doing like this:
I had created a DHCP on the lan with the DHCP from to
All devices are DHCP client ( except the gatway of course).
For the client I want a reserved IP, the first time, In the DHCP, I “fix” the ip with a number under 100.

I let all clients computers, tablets, smarphones in “free” DHCP
And I let router, AP and printer in “fixed” DHCP like this.

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