Summary linux lts joinen in ad .docx

Absolutely! Here's a step-by-step guide to join your Ubuntu 22.04 LTS
VM to an Active Directory (AD) domain using the realmd method,
which is the most straightforward and supported way to domain-join
modern Ubuntu systems.

Win server 2025



✅ Assumptions

 Ubuntu hostname: ubuntu-client (you can change it).

 Ubuntu IP: 192.168.100.20

 AD Domain: lorenzo-meli.be

 Domain Controller (DC) IP: 192.168.100.10

 You have a domain admin account (e.g., Administrator or any user
with join privileges).

 DNS is correctly set to point to the AD DC.



🔧 Step 1: Set the hostname (Optional but recommended)

bash

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sudo hostnamectl set-hostname ubuntu-client



🛜 Step 2: Set DNS to point to the AD server

Edit your Netplan config or resolv.conf temporarily:

bash

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sudo nano /etc/systemd/resolved.conf

Uncomment and edit:

ini

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DNS=192.168.100.10

Domains=lorenzo-meli.be

, Then restart resolved:

bash

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sudo systemctl restart systemd-resolved

Verify DNS resolution:

bash

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dig lorenzo-meli.be



📦 Step 3: Install necessary packages

bash

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sudo apt update

sudo apt install -y realmd sssd sssd-tools libnss-sss libpam-sss adcli
samba-common-bin oddjob oddjob-mkhomedir packagekit



🔍 Step 4: Discover the domain

bash

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realm discover lorenzo-meli.be

Expected output (or similar):

Yaml

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lorenzo-meli.be

type: kerberos

realm-name: LORENZO-MELI.BE

domain-name: lorenzo-meli.be

configured: no