MM , Thanks I install the isc-dhcp-server from the Bionic-Security repository, and it appears to work. For anyone else here is how to install an older version of the server,and then block updates to the focal version
PLEASE USE AT YOUR OWN RISK #Backup your old config sudo mkdir /etc/dhcp.20.04 sudo cp -r /etc/dhcp /etc/dhcp.20.04 #Remove your old isc-dhcp server sudo apt remove isc-dhcp-server #Add the old Bionic repository add-apt-repository 'deb http://security.ubuntu.com/ubuntu bionic-security main' sudo apt update #Install isc-dhcp-server from the bionic-security repository sudo apt-get install -t bionic-security/main isc-dhcp-server sudo systemctl restart isc-dhcp-server #Block upgrades of the package from the Focal Repository edit /etc/apt/preferences.d/repo and add the following lines Package: isc-dhcp-server Pin: release a=bionic-security Pin-Priority: 900 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872118 Title: DHCP Cluster crashes after a few hours To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1872118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
