SNI + SSH + Port 443 = Invisible VPN Your ISP Can’t Touch
SNI + SSH + Port 443 = Invisible VPN Your ISP Can’t TouchYour internet provider is nosy. It checks what you’re doing online, blocks sites it doesn’t like, and in some countries — blocks VPNs entirely. This trick makes your connection look like you’re just casually browsing YouTube or Google. Meanwhile, you’re actually tunneling through their firewall like it doesn’t exist.
Works in countries where the internet is heavily censored — China, Iran, Myanmar, Russia, and dozens more.
What This Actually Does (Plain English)
- Your ISP uses something called DPI (Deep Packet Inspection) to spy on your traffic and block VPNs
- This trick disguises your VPN connection as normal website traffic
- Your ISP sees: “oh, they’re just visiting youtube.com” — and lets it through
- What’s actually happening: your entire connection is tunneling through their censorship wall
- Result: unrestricted internet, and your ISP has no idea
🧠 How This Works — The 30-Second Explanation
When you visit any website, your device sends a little name tag that says “Hey, I want to visit youtube.com.” This name tag is called SNI (Server Name Indication). Your ISP reads it.
Here’s the trick:
- You set your VPN to send a fake SNI — a name tag that says “youtube.com” or “google.com”
- Your ISP reads the name tag, sees a trusted website, and says “cool, go ahead”
- But behind that fake name tag, your traffic is actually going through an encrypted SSH tunnel on Port 443 (the same port every HTTPS website uses)
- Your ISP can’t block Port 443 without breaking the entire internet — so your tunnel goes right through
The full combo:
SSH (encrypted tunnel) + HTTPS on Port 443 (looks like normal web traffic) + fake SNI (looks like YouTube/Google) = your ISP sees absolutely nothing suspicious.
It’s like wearing a FedEx uniform to walk past security. You’re not FedEx. But they don’t check.
Step 1 — Get Your SNI Bug Host
An SNI “bug host” is just a domain name that your ISP trusts and lets through without blocking. Different countries and different carriers have different ones that work.
How to use it:
- Go to the link above
- Select your country from the dropdown
- Click Generate
- You’ll get an SNI host, payload details, and proxy/port info
- Copy everything — you’ll paste it into your VPN app next
That’s it. The generator does the hard part for you — finding which domains your ISP lets through.
🔍 What If the Generator Doesn't Have My Country?
Try these alternatives:
- https://snihost.com/sni-generator — another generator with different country coverage
- https://tools.mr-medo.net/p/sni-bug-host-generator.html — wider country list
- https://www.aimtuto.com/p/sni-bug-host-generator.html — includes payload templates
DIY method: Common bug hosts that work in many countries:
youtube.comgoogle.comzoom.usmicrosoft.comcloudflare.com
These are domains ISPs almost never block because too many people use them. Try each one until something connects.
Step 2 — Pick Your Tunneling App
These are the apps that take your SNI host and build the tunnel. All free, all on Android.
| App | Best For | Play Store |
|---|---|---|
| HTTP Custom | Beginners — cleanest interface | Search “HTTP Custom” on Play Store |
| HTTP Injector | Most popular — huge community, config file sharing (.ehi files) | Search “HTTP Injector” on Play Store |
| NPV Tunnel | Lightweight — uses less battery | Search “NPV Tunnel” on Play Store |
| HA Tunnel Plus | Widest country support — tons of pre-made configs online | Search “HA Tunnel Plus” on Play Store |
Any of these will work. Pick whichever one you already have, or grab HTTP Custom if you’re starting fresh.
Step 3 — Set It Up (2 Minutes)
📱 Setup for HTTP Custom
- Open the app
- Tap SSH connection type
- Enter your SSH server details:
- Host: your SSH server address
- Port:
443 - Username + Password: from your SSH provider
- Scroll down to SNI Host field
- Paste the SNI bug host you got from the generator (e.g.,
youtube.com) - Set Proxy Type to HTTPS
- Set Proxy Port to 443
- Hit Connect
If it connects — you’re through. Your ISP thinks you’re watching YouTube. You’re actually tunneling past their entire firewall.
📱 Setup for HTTP Injector
- Open the app
- Go to SSH Settings
- Enter your SSH server, port
443, username, password - Go to Payload Generator or SNI Settings
- Paste your SNI bug host
- Set remote proxy to HTTPS on port 443
- Hit Connect
Shortcut: Search online for pre-made .ehi config files for your country + carrier. Import them directly — skips all manual setup.
📱 Setup for HA Tunnel Plus
- Open the app
- Tap the connection method dropdown → select Custom SNI
- Enter your SNI bug host
- Configure SSH tunnel settings (server, port 443, credentials)
- Hit Connect
HA Tunnel has the biggest library of community-shared config files. Search “[your country] HA Tunnel Plus config 2025” for ready-to-use files.
🔑 Where to Get Free SSH Credentials
You need an SSH account to tunnel through. These sites give free 3-7 day accounts:
- Search for “Free Premium SSH account” — tons of providers rotate credentials
- Most give you: server address, port (usually 22 or 443), username, password
- When it expires, just make another one — takes 30 seconds
- Always pick Port 443 when given the option — it’s the HTTPS port and hardest for ISPs to block
Why This Setup Is So Hard to Block
💪 The Three Layers That Protect You
Your ISP would have to defeat ALL THREE of these simultaneously:
| Layer | What It Does | Why It’s Hard to Block |
|---|---|---|
| SSH Tunnel | Encrypts everything — ISP can’t read your traffic | They’d have to block all encrypted traffic (breaks banking, email, everything) |
| Port 443 (HTTPS) | Uses the same port as every secure website | Blocking port 443 = blocking the entire internet |
| Fake SNI | Makes traffic look like YouTube/Google visits | They’d have to block YouTube/Google (most countries won’t) |
This is why the SSH + HTTPS + SNI combo is considered one of the strongest censorship bypass methods. Your ISP would literally have to break the internet to stop you.
Countries where this works:
China (GFW bypass), Iran, Myanmar, Russia, Pakistan, Egypt, UAE, Saudi Arabia, Turkey, Vietnam, South Korea (for certain sites), and basically anywhere with DPI-based censorship.
Troubleshooting
| Problem | Fix |
|---|---|
| Won’t connect | Try a different SNI bug host from the generator — not all hosts work on all carriers |
| Connects but super slow | Switch SSH server to one closer to your country. Try a different port (443 first, then 80) |
| Connects then drops after a few minutes | SSH credentials expired — grab new ones |
| ISP still blocking it | Try converting your SNI host to its IP address and using the IP instead |
| App crashes | Update the app. If still crashing, try a different tunneling app from the list above |
| “Connection timed out” | Your carrier might be blocking that specific host. Generate a new one and try again |
This Post Works Together With
This is the Part 2 companion to the VPN tunneling bypass guide. That one covers the apps and SSH setup in more detail. This one gives you the missing piece — the SNI generator that makes the whole thing actually work against DPI.
Think of it like this:
- VPN tunneling post = the car
- This SNI generator = the disguise that gets the car past the checkpoint
Your ISP is watching. Now they see nothing. 
!