OPNsense Kea-DHCP-Server: Bei der Migration hört man immer wieder von Problemen, dass der Kea-DHCP-Server auf IPv4 keine IP-Adressen vergibt. Das "Problem" ist hier eine etwas unglückliche Default-Einstellung der OPNsense für den Socket-Type. Den auf "raw" umstellen, dann funktioniert auch der Kea-DHCPv4 auf der OPNsense richtig.

#OPNsense #KeaDHCP

#nushell and #keadhcp: get all DHCP leases from the DHCP server via API, covert the remaining lease time to human readable format and sort by remaining lease time

http post --content-type application/json http://192.0.2.42:8000 { service: [ dhcp4 ], command: lease4-get-all } | get arguments.0.leases | update cltt { |row| $row.cltt * 1000000000 | into datetime } | sort-by cltt | select ip-address hw-address cltt

#nushell and #keadhcp:

List the CSV (memfile) database with lease expire times in human readable formatting:

nu> open /var/lib/kea/kea-leases6.csv | update expire {|row| $row.expire * 1000000000 | into datetime } | select address valid_lifetime expire

🚀 If you're using Buildroot, check out my GitHub repo for patches! I've added support for new packages starting with Kea DHCP. 🔧💻 #Buildroot #KeaDHCP #DIY #embedded #Linux #Opensource

https://github.com/zikusooka/buildroot-patches

We are (again) modernizing obsolete #ISCDHCP installations. Apart from the direct successor #KeaDHCP, there are unfortunately not too many reasonably trustworthy #OSS alternatives.

A fairly unknown product in this area is the #FreeRADIUS #DHCP server.

For my part, I really like config files that are easy for humans to read as well, especially for troubleshooting purposes.

And if you compare the config files of the 3 alternatives, one can see once again how bloated #JSON is ...