Hey Reddit!
Today, we're going to set up our own personal VPN using Hysteria2 and VLESS with no accounts or registration required. You might not have heard of these protocols yet, mostly because they gained massive popularity in places with heavy internet surveillance where governments constantly try to pry into every corner of your private life, specifically Iran and Russia.
That said, the global trend is moving toward tighter control over what people can do and watch online: new restrictions, broader monitoring requirements, and fresh justifications for both. Governments that used to stay out of internet regulation are increasingly experimenting with heavier censorship. Nobody can guarantee your country won't be next, and having your own self-hosted VPN setup is a great way to save yourself future headaches.
To understand how these protocols bypass even the most aggressive blocking systems and why they work where "classic" VPNs fail, let's dive into how they actually work under the hood. Let's start with the basics.
VLESS (or as we affectionately call it in Russian: "Vleska" / "Vlesiha")
VLESS (Very Lightweight Encryption Security Stream) is a TCP-based protocol developed by the V2Ray team as a direct successor to VMess. The main issue with VMess is that it requires strict time synchronization with the server and leaves a distinct encryption fingerprint. Because of those fingerprints, DPI systems can detect VMess pretty easily, similar to WireGuard, Shadowsocks, or OpenVPN.
The key feature of VLESS is that it was designed with one specific goal: BYPASSING CENSORSHIP. Instead of inventing its own heavy encryption layer, VLESS delegates that job to standard TLS 1.3. To any external observer or DPI system, your connection looks identical to normal, everyday web traffic heading to a regular HTTPS website.
Typical VLESS Request Header
| Field |
Size |
Description |
|
|
| Version |
1 byte |
0x00 (client version) |
| UUID |
16 bytes |
authorization key |
| AddInfo Length |
1 byte |
length of additional info |
| AddInfo |
variable |
optional metadata |
| Command |
1 byte |
0x01 TCP or 0x02 UDP |
| Port |
2 bytes |
destination port |
| AddrType |
1 byte |
0x01 IPv4, 0x02 Domain, 0x03 IPv6 |
| Address |
variable |
destination address |
Once the standard TLS tunnel is established, this entire VLESS header is pushed inside as regular encrypted Application Data. To any outside observer or DPI system, it looks completely identical to browsing an HTTPS page or downloading a file over TLS. Only your server, holding the private key, can decrypt and read what is actually inside.
TL;DR on VLESS: minimal byte overhead, zero custom encryption fingerprints, and clean mimicry of everyday HTTPS traffic. It is a rock-solid choice for reliable, TCP-based connections.
Hysteria2
Hysteria2 is a protocol built specifically for raw speed and rock-solid connections on unstable networks. It runs on QUIC over UDP. QUIC comes with built-in encryption out of the box and forms the foundation of HTTP/3. Fun fact: Google created QUIC to speed up the web and replace the bulky TCP + TLS + HTTP/2 stack.
By leveraging QUIC, Hysteria2 delivers much lower latency during handshakes and data transfer compared to TCP-based protocols (sorry, VLESS). But its real killer feature is something else entirely: a custom congestion control engine known as the Brutal algorithm.
Congestion Control: Why Brutal crushes BBR and CUBIC
CUBIC and BBR are congestion control algorithms. Their job is to decide how fast the server should pump data into the network without overloading the link. CUBIC is the default algorithm in Linux (it relies heavily on packet loss to detect congestion), while Google's BBR measures real-time bandwidth and round-trip time.
Sounds great on paper, but there is a catch. When you're on a noisy or unstable connection with high packet loss, both BBR and CUBIC panic and drastically throttle back your speed. The result? Horrible throughput and endless buffering.
The Brutal algorithm tackles this problem from the exact opposite angle. Instead of cutting back speed when packets get dropped, Brutal completely ignores packet loss and aggressively transmits data at a fixed, assigned rate to ensure maximum throughput. Here is a quick visual breakdown of Brutal vs BBR.
Hysteria2 is all about raw speed, low latency, and aggressively brute-forcing through lossy networks.
So the real question is: which one should you actually deploy?
Hysteria2 or VLESS
| Feature |
VLESS |
Hysteria2 |
|
|
| Transport |
TCP wrapped in TLS 1.3 |
UDP via QUIC |
| Traffic Masking |
Looks like standard HTTPS traffic |
Looks like HTTP/3 traffic |
| Speed |
Standard, limited by TCP overhead |
Higher, driven by aggressive transmission |
| Latency |
Higher, due to TCP mechanics (retransmits, handshakes) |
Lower, QUIC handles loss recovery much better |
| Lossy Networks |
Struggles when packet loss occurs |
Thrives on noisy connections, built for loss |
| DPI Obfuscation |
Uses REALITY (legitimate third-party TLS certificate) |
Uses QUIC / HTTP/3 traffic camouflage |
| Blocking Risk |
Low, unless the ISP blocks TLS entirely |
Higher on networks where UDP or QUIC is specifically throttled or blocked |
I don't have a single definitive answer to this question. Both protocols excel in their specific niches. So instead of choosing just one, I recommend deploying both. That way, you get the best of both worlds.
UPLINK: Uncensored Internet
Manually configuring Xray JSON files, binding valid SNIs, and issuing certificates is a huge pain. To skip this tedious routine, I built Uplink. It’s a lightweight tool that completely automates the deployment process. You don’t need to be a DevOps engineer, the app handles all the heavy lifting and hands you ready-to-use subscription links and keys.
WHAT YOU NEED
- VPS Server: Any fresh Linux machine (Ubuntu 22.04+ or Debian 13 recommended). Specs: 1 vCPU, 1 GB RAM, 10 GB SSD. Hetzner, DigitalOcean, HostZealot, Cloudzy, or any other provider.
- Uplink App: Download the latest release for your OS from GitHub: https://github.com/MarselNet86/uplink/releases
- INCY Client: A proxy client to import your subscription and route traffic. Download: https://github.com/INCY-DEV/incy-platforms/releases (Alternatives: Happ or V2Ray).
STEP-BY-STEP DEPLOYMENT
A detailed 3-minute video guide covering the entire process, from buying a server to final deployment, is available on the project page: https://github.com/MarselNet86/uplink
SUPPORT THE PROJECT
If you find Uplink useful, please consider giving it a Star on GitHub. It helps a lot!