Skip to main content

Questions tagged [dhcp-server]

Dynamic Host Configuration Protocol (DHCP)

0 votes
1 answer
2k views

Refreshing Windows DHCP Server reservation active/inactive state

I have a Windows DHCP server with a number of reservations. These all seem to work correctly (in that the addresses are correctly distributed) but, somehow, the Active/Inactive state of these has ...
jimbobmcgee's user avatar
  • 2,695
1 vote
0 answers
2k views

What is the exact meaning of "On Commit" in ISC DHCP server configuration?

I know there are three kinds of events we can use for scripting in ISC dhcpd -- commit, expire and lease. My problem is, I am having a little problem in understanding the "commit" event. I ...
Elon20's user avatar
  • 11
1 vote
0 answers
221 views

What DHCP option tags are used by standards but not recorded?

I've been working on setting up an in-house service that uses DHCP to let clients auto-discover the server's location. I took a look at IANA's BOOTP and DHCP option tags to see what's available to use,...
Tony Goat's user avatar
0 votes
1 answer
2k views

Server DHCPv6 with Linux Alpine

I want create a server dhcp6 with alpine I'm using Kea-dhcp6. The my file config this is: { # DHCPv6 configuration starts on the next line "Dhcp6": { # First we set up global values &...
Seguret's user avatar
0 votes
1 answer
6k views

netplan - Network with DHCP configured, but no internet

I am trying to configure my Ubuntu Server 20.04 LTS to use DHCP in its network configuration. Many tutorials on the internet recommend that I create the following file with the following settings... ...
Eduardo Lucio's user avatar
1 vote
1 answer
9k views

Unable to add forward map SERVFAIL/REFUSED DDNS

I am using bind9 on a primary dns server with two secondary dns servers in a master/slave relationship. I am attempting to implement DDNS but seem to be running into a problem when it comes to adding ...
lb-99's user avatar
  • 13
0 votes
0 answers
1k views

Block the DHCP server from broadcasting into the second ethernet interface

I have setup my DHCP server by following the instructions in https://wiki.debian.org/DHCP_Server. This all works but the issue I am having is the DHCP server is being broadcast in the main company ...
Paul's user avatar
  • 131
0 votes
2 answers
237 views

Dhcp reserved addresses

Is it better to use a dhcp server to reserve addresses based on mac address or to assign them statically on the interfaces? I have a small network and i want almost everything to have static ip ...
CorinaLarksExtraMild's user avatar
-1 votes
1 answer
409 views

Hosting Azure Active Directory and retiring on-prem AD

Background:- We have Office 365 licenses and all employees have their individual mailboxes. Currently there is one Domain Controller, which not only hosts Active directory but also acts as DNS and ...
Chetan Kumar's user avatar
1 vote
3 answers
5k views

How does a router with DHCP and a custom DNS set deal with client DNS settings?

I have a custom DNS server in my network that I want all clients to use (it has ad-filters etc, similar to PiHole). I have set my router (LinkSys Velop) to use this DNS server. However, on the DNS ...
uncovery's user avatar
  • 365
1 vote
0 answers
5k views

DHCP not updating dynamic DNS record which has an associated CNAME record

I have an Active Directory domain corp.com, which has a child domain dev.corp.com. Each domain has a pair of DCs. For the top-level AD domain, DNS, as well as DHCP, runs on both ADs. For the child ...
Ondrej Tucny's user avatar
0 votes
1 answer
493 views

Standard Windows Server 2019 wizard setup with AD, DNS & DHCP does not resolve any DHCP client names

I am working myself through learning and setting up a pretty standard Windows Server 2019 (Essentials edition) serving as an AD PDC, DNS- & DHCP server for a very small network. I followed some ...
user1211286's user avatar
-1 votes
1 answer
1k views

Different lease duration for dhcp clients

Is it normal in Windows implementation of DHCP Server and DHCP Client that some clietnts gets strange long lease expires time like 15 days? ,,Lease duration for DHCP clients'' setting in DHCP Server ...
sokar's user avatar
  • 93
1 vote
1 answer
2k views

What are the symptoms of an IP address conflict?

System administrators must take special precautions when setting up two DHCP servers on the same network. The most common problem caused by competing DHCP servers is an IP address conflict. Windows is ...
Rick's user avatar
  • 121
3 votes
2 answers
967 views

Unusual DHCP activity after power outage

Over the holiday weekend, one of our clients experienced a power outage. When everything came back online, most devices seemed to be fine, but a few (one of our ESXi hosts and a number of VDIs) could ...
Joel D.'s user avatar
  • 31

15 30 50 per page
1
3 4
5
6 7
37