Univention Bugzilla – Bug 38879
UMC-Module: Manage DHCP leases
Last modified: 2020-04-17 11:18:16 CEST
It should be possible to see in UMC which leases have been requested and given. And it should be possible to create computer objects or DHCP entries of these objects.
This feature has been dropped from the UCS 4.1 roadmap.
*** Bug 35965 has been marked as a duplicate of this bug. ***
This was requested from a partner for a customer interested in UCS
Requested here (second question): http://forum.univention.de/viewtopic.php?f=48&t=4640&p=17902
Requested again: http://forum.univention.de/viewtopic.php?t=3102&p=22532#p22532
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It would be easier to debug such problems in a customer environment. This Ticket#2017020321000054 could be solved much easier/faster.
isc-dhcp from 4.3 will ship ~phahn/src/extern/dhcp/contrib/dhcp-lease-list.pl to parse /var/lib/dhcp/dhcpd.leases
Maybe "omshell" can be used to query the lease DB (my quick search didn't find anything useful).
The dhcpd.leases file is supposed to be fully re-written each
34 #define LEASE_REWRITE_PERIOD 3600
seconds = 1h
wurde auf der CeBIT auf dieses Feature angesprochen, geht um einen neuen Partner, der UCS aktuell für einen Kunden evaluiert
(In reply to Philipp Hahn from comment #8)
> isc-dhcp from 4.3 will ship
> ~phahn/src/extern/dhcp/contrib/dhcp-lease-list.pl to parse
It's included with isc-dhcp-server_4.3.1-6+deb8u2A~220.127.116.11703161319, but broken due to Bug #44125 (includes patch)
Please note that static leases are not tracked in /var/lib/dhcp/dhcpd.leases.
There is a thing called "RESERVED LEASES" (man 5 dhcpd.conf): <https://lists.isc.org/pipermail/dhcp-users/2009-July/009875.html>
> Maybe "omshell" can be used to query the lease DB (my quick search didn't
> find anything useful).
Please note that this might be complicated further when multiple dhcp servers are used, as each one has a separate lease database.
requested again (see ticketlist)
I also requested this for our environment as it would be really useful (Ticket #2017062721000341)
In case its a duplicate, please ignore (cannot delete/modify any comments) :(
"[...]jeder dumme Router für Endkunden kann das.[...]"
Instead of "me too" or "+1" comments, please vote for this issue.
This issue has been filled against UCS 4.1. The maintenance with bug and security fixes for UCS 4.1 has ended on 5st of April 2018.
Customers still on UCS 4.1 are encouraged to update to UCS 4.3. Please contact
your partner or Univention for any questions.
If this issue still occurs in newer UCS versions, please use "Clone this bug" or simply reopen the issue. In this case please provide detailed information on how this issue is affecting you.
This feature does not exist yet
*** Bug 50223 has been marked as a duplicate of this bug. ***
*** Bug 50225 has been marked as a duplicate of this bug. ***
Customer was not aware of /var/lib/dhcp and therefore needed an information how to get the list of current leases.
There should be an easier way to see this (UMC!).
Citing another user from the topic in comment #21:
"this is something I feature requested several times in the past, but I don’t know, why Univention doesn’t want to enhance DHCP settings. It’s really painful to administrate DHCP clients within the UMC. :cry:"
potential tool: https://github.com/Akkadius/glass-isc-dhcp