What is the Great Firewall (GFW)?
Contents
GFW (Great Firewall) is the colloquial term for an internet censorship system, also called "the Wall". It is a complex network filtering and blocking system.
Main Technical Methods of GFW
1. DNS Poisoning
- Returns incorrect DNS resolution results
- Prevents access to correct servers
2. IP Blocking
- Directly blocks specific IP addresses
- Cuts off connections to target servers
3. Deep Packet Inspection (DPI)
- Detects traffic characteristics
- Identifies and blocks VPN/proxy traffic
4. Keyword Filtering
- Detects sensitive keywords
- Blocks requests containing sensitive content
How to Bypass GFW?
| Method | Effectiveness | Difficulty | Recommendation |
|---|---|---|---|
| VPN | ⭐⭐⭐⭐⭐ | Easy | ⭐⭐⭐⭐⭐ |
| Proxy | ⭐⭐⭐⭐ | Medium | ⭐⭐⭐⭐ |
| Tor | ⭐⭐⭐ | Hard | ⭐⭐ |
Recommended: SingLink VPN
SingLink VPN designed to counter GFW:
- ✅ SingLink Protocol - Optimized against DPI detection
- ✅ Multiple obfuscation - Traffic disguise technology
- ✅ Smart routing - Auto-select optimal routes
- ✅ Fast recovery - Quick switch after node blocking
