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🔐 STEP – ENABLE ROOT LOGIN OVER SSH (Debian 11/12)  
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1️⃣ Open SSH configuration file:  
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sudo apt install nano -y  
sudo su  
nano /etc/ssh/sshd_config  

2️⃣ Change the following line:  
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FROM:  
#PermitRootLogin prohibit-password  
OR  
PermitRootLogin no  

TO:  
PermitRootLogin yes  

💡 Tip: If the line does not exist, just add:  
PermitRootLogin yes  




3️⃣ OR do it automatically via terminal:  
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sudo sed -i 's/^#\?PermitRootLogin .*/PermitRootLogin yes/' /etc/ssh/sshd_config  

4️⃣ Restart the SSH service:  
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sudo systemctl restart sshd  

5️⃣ Confirm the change was applied:  
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grep -i "PermitRootLogin" /etc/ssh/sshd_config  

✅ Done! Root login via SSH is now enabled.  
Make sure the root account has a password set.