🔐 Secure Selenium Grid with UFW on Ubuntu
Step 1: Enable UFW (Uncomplicated Firewall)
First, check if UFW is already active:
sudo ufw status
- If it shows
inactive, enable it:
sudo ufw enable
⚠️ Warning: This may disrupt existing SSH connections!
Step 2: Allow SSH Access to Prevent Lockout
Before proceeding, ensure SSH access remains available:
sudo ufw allow OpenSSH
If you're using a custom SSH port (e.g., 2222), allow it:
sudo ufw allow 2222/tcp
Step 3: Allow Access to Selenium Grid for Your IP
Only allow your IP (27.34.44.45) to access Selenium Grid:
sudo ufw allow from 27.34.44.45 to any port 4444
Step 4: Block All Other IPs
Now, deny access to everyone else on port 4444:
sudo ufw deny 4444
Step 5: Apply & Verify UFW Rules
Reload UFW to apply changes:
sudo ufw reload
Check if the rules are correctly applied:
sudo ufw status
Expected Output:
To Action From
-- ------ ----
4444 ALLOW xxxx
4444 DENY Anywhere
✅ Now, only 27.34.64.25 can access http://XXXX:4444/.
❌ All other IPs are blocked.
Step 6: Removing Rules (If Needed)
All Set! 🎉
Your Selenium Grid is now secured, and only your IP can access it! 🚀
