#Rejoin computer to domain how to
#Rejoin computer to domain install
#Rejoin computer to domain update

I will use domain user named change that for your domain user and domain name. Let’s check if the authentication is working and we can get id of domain users. If everything went ok, you will be asked for your domain admin password, and that will be it. The command is sudo realm join -U Administrator winlin.local Add Ubuntu machine to Active Directoryįinally, we will join our Ubuntu machine to our windows domain.Ĭhange Administrator if the account name of your domain admin is different. The information we got back is good, we can proceed further. Change winlin.local for your domain name. We will now check if we can discover our windows domain.

#Rejoin computer to domain install

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

#Rejoin computer to domain update

We will now install all required packages for our domain join adventure sudo apt update -y Ok ,that is it for the hostnames and DNS, I like to reboot machine after these settings to be sure everything is fine. To apply changes type in sudo netplan apply If you want to check your indentation to be sure it is ok, you can install tool like yamllint. Be very careful about indentations, because yaml files are very picky on that front. sudo nano /etc/netplan/01-network-manager-all.yaml

Next, we need to edit that file (change 01-network-mananger-all.yaml to your filename. Your may be named differently, so mark that. My file is named 01-network-manager-all.yaml. To find out type following in ls -la /etc/netplan If there is a need to change IP and DNS settings, do followingįirst we need to find out how your netplan file is named. Then check DNS settings by entering systemd-resolve -status | grep CurrentĪnd you can also check default gateway by typing in ip r If you are doing this on a machine without GUI, only in shell you will have to do it through netplan.Īgain, check your IP settings by entering ip a I’m doing this manually on Ubuntu 20.04 that has GUI.So this is how my settings look like. If your Linux machine is getting IP address and DNS from DHCP server, make sure that you are in the same network, and that DNS IP is already in domain or on domain controller. In my case, DNS server IP is same as my domain controller ip – 10.0.0.31. We will check machine name by entering hostnamectlįor the DNS part, like with Windows client machine you wish to join to AD – linux machines also need to have domain controller (or separate DNS server for domain, if configured) IP address under DNS. Since we want to join Ubuntu machine (name winlinubcl2) to Windows domain named winlin.local, we need to change Ubuntu machine name to match active directory (AD) naming… sudo hostnamectl set-hostname Machine IP address: 10.0.0.34 Prerequisitesįirst, we will start with updating sudo apt update -y I used Ubuntu 20.04 as a client for this guide.

I also created domain user named: client data: I installed DNS on the domain controller itself. I already set Active Directory on Windows Server 2019 Standard.ĭomain Controller IP address: 10.0.0.31/24

#Rejoin computer to domain how to

In this short guide we will learn how to connect machine with Ubuntu (20.04) installation to Active Directory.