🛠️ Change Username & Hostname on Kali Linux🚀| 2025 Update

Step 1: Login as Root 👑

Step 2: Change Username

sudo usermod -l NEW_USERNAME -d /home/NEW_USERNAME -m OLD_USERNAME

Step 3: (Optional) Change Group Name:

sudo groupmod -n NEW_USERNAME OLD_USERNAME

Step 4: Fix Ownership:

sudo chown -R NEW_USERNAME:NEW_USERNAME /home/NEW_USERNAME

🕒Temporary Change:

sudo hostnamectl set-hostname NEW_HOSTNAME

(Won't survive a reboot!!!!)

📁Permanent Change:

Step 1: Edit /etc/hostname:

sudo nano /etc/hostname

👀What it looks like in nano

old_hostname

🔄Replace old_hostname with NEW_HOSTNAME.

Step 2: Edit /etc/hosts

sudo nano /etc/hosts

👀What to update:

127.0.0.1    localhost
127.0.1.1    old_hostname

🔄Change old_hostname → NEW_HOSTNAME.

Step 3: Reboot

sudo reboot