[Doc-A-THon] Updating code block

- Updating code block from console to bash
- Adding sudo on a few commands.

Author: msaenzbosupport

articles/active-directory-domain-services/join-ubuntu-linux-vm.md

@@ -55,7 +55,7 @@ Once the VM is deployed, follow the steps to connect to the VM using SSH.
 
 To make sure that the VM host name is correctly configured for the managed domain, edit the */etc/hosts* file and set the hostname:
 
-```console
+```bash
 sudo vi /etc/hosts
 ```
 
@@ -66,7 +66,7 @@ In the *hosts* file, update the *localhost* address. In the following example:
 
 Update these names with your own values:
 
-```console
+```config
 127.0.0.1 ubuntu.aaddscontoso.com ubuntu
 ```
 
@@ -78,7 +78,7 @@ The VM needs some additional packages to join the VM to the managed domain. To i
 
 During the Kerberos installation, the *krb5-user* package prompts for the realm name in ALL UPPERCASE. For example, if the name of your managed domain is *aaddscontoso.com*, enter *AADDSCONTOSO.COM* as the realm. The installation writes the `[realm]` and `[domain_realm]` sections in */etc/krb5.conf* configuration file. Make sure that you specify the realm an ALL UPPERCASE:
 
-```console
+```bash
 sudo apt-get update
 sudo apt-get install krb5-user samba sssd sssd-tools libnss-sss libpam-sss ntp ntpdate realmd adcli
 ```
@@ -89,13 +89,13 @@ For domain communication to work correctly, the date and time of your Ubuntu VM
 
 1. Open the *ntp.conf* file with an editor:
 
-    ```console
+    ```bash
     sudo vi /etc/ntp.conf
     ```
 
 1. In the *ntp.conf* file, create a line to add your managed domain's DNS name. In the following example, an entry for *aaddscontoso.com* is added. Use your own DNS name:
 
-    ```console
+    ```config
     server aaddscontoso.com
     ```
 
@@ -109,7 +109,7 @@ For domain communication to work correctly, the date and time of your Ubuntu VM
 
     Run the following commands to complete these steps. Use your own DNS name with the `ntpdate` command:
 
-    ```console
+    ```bash
     sudo systemctl stop ntp
     sudo ntpdate aaddscontoso.com
     sudo systemctl start ntp
@@ -121,7 +121,7 @@ Now that the required packages are installed on the VM and NTP is configured, jo
 
 1. Use the `realm discover` command to discover the managed domain. The following example discovers the realm *AADDSCONTOSO.COM*. Specify your own managed domain name in ALL UPPERCASE:
 
-    ```console
+    ```bash
     sudo realm discover AADDSCONTOSO.COM
     ```
 
@@ -135,13 +135,13 @@ Now that the required packages are installed on the VM and NTP is configured, jo
 
     Again, the managed domain name must be entered in ALL UPPERCASE. In the following example, the account named `[email protected]` is used to initialize Kerberos. Enter your own user account that's a part of the managed domain:
 
-    ```console
-    kinit -V [email protected]
+    ```bash
+    sudo kinit -V [email protected]
     ```
 
 1. Finally, join the VM to the managed domain using the `realm join` command. Use the same user account that's a part of the managed domain that you specified in the previous `kinit` command, such as `[email protected]`:
 
-    ```console
+    ```bash
     sudo realm join --verbose AADDSCONTOSO.COM -U '[email protected]' --install=/
     ```
 
@@ -155,7 +155,7 @@ If your VM can't successfully complete the domain-join process, make sure that t
 
 If you received the error *Unspecified GSS failure.  Minor code may provide more information (Server not found in Kerberos database)*, open the file */etc/krb5.conf* and add the following code in `[libdefaults]` section and try again:
 
-```console
+```bash
 rdns=false
 ```
 
@@ -165,21 +165,21 @@ One of the packages installed in a previous step was for System Security Service
 
 1. Open the *sssd.conf* file with an editor:
 
-    ```console
+    ```bash
     sudo vi /etc/sssd/sssd.conf
     ```
 
 1. Comment out the line for *use_fully_qualified_names* as follows:
 
-    ```console
+    ```config
     # use_fully_qualified_names = True
     ```
 
     When done, save and exit the *sssd.conf* file using the `:wq` command of the editor.
 
 1. To apply the change, restart the SSSD service:
 
-    ```console
+    ```bash
     sudo systemctl restart sssd
     ```
 
@@ -193,37 +193,37 @@ By default, users can only sign in to a VM using SSH public key-based authentica
 
 1. Open the *sshd_conf* file with an editor:
 
-    ```console
+    ```bash
     sudo vi /etc/ssh/sshd_config
     ```
 
 1. Update the line for *PasswordAuthentication* to *yes*:
 
-    ```console
+    ```config
     PasswordAuthentication yes
     ```
 
     When done, save and exit the *sshd_conf* file using the `:wq` command of the editor.
 
 1. To apply the changes and let users sign in using a password, restart the SSH service:
 
-    ```console
+    ```bash
     sudo systemctl restart ssh
     ```
 
 ### Configure automatic home directory creation
 
 To enable automatic creation of the home directory when a user first signs in, complete the following steps:
 
-1. Open the */etc/pam.d/common-session* file in an editor:
+1. Open the `/etc/pam.d/common-session` file in an editor:
 
-    ```console
+    ```bash
     sudo vi /etc/pam.d/common-session
     ```
 
 1. Add the following line in this file below the line `session optional pam_sss.so`:
 
-    ```console
+    ```config
     session required pam_mkhomedir.so skel=/etc/skel/ umask=0077
     ```
 
@@ -235,13 +235,13 @@ To grant members of the *AAD DC Administrators* group administrative privileges
 
 1. Open the *sudoers* file for editing:
 
-    ```console
+    ```bash
     sudo visudo
     ```
 
 1. Add the following entry to the end of */etc/sudoers* file:
 
-    ```console
+    ```config
     # Add 'AAD DC Administrators' group members as admins.
     %AAD\ DC\ Administrators ALL=(ALL) NOPASSWD:ALL
     ```
@@ -254,29 +254,29 @@ To verify that the VM has been successfully joined to the managed domain, start
 
 1. Create a new SSH connection from your console. Use a domain account that belongs to the managed domain using the `ssh -l` command, such as `[email protected]` and then enter the address of your VM, such as *ubuntu.aaddscontoso.com*. If you use the Azure Cloud Shell, use the public IP address of the VM rather than the internal DNS name.
 
-    ```console
-    ssh -l [email protected] ubuntu.aaddscontoso.com
+    ```bash
+    sudo ssh -l [email protected] ubuntu.aaddscontoso.com
     ```
 
 1. When you've successfully connected to the VM, verify that the home directory was initialized correctly:
 
-    ```console
-    pwd
+    ```bash
+    sudo pwd
     ```
 
     You should be in the */home* directory with your own directory that matches the user account.
 
 1. Now check that the group memberships are being resolved correctly:
 
-    ```console
-    id
+    ```bash
+    sudo id
     ```
 
     You should see your group memberships from the managed domain.
 
 1. If you signed in to the VM as a member of the *AAD DC Administrators* group, check that you can correctly use the `sudo` command:
 
-    ```console
+    ```bash
     sudo apt-get update
     ```