RockCloud-基石云安全-官方博客
How to Tell If It's Really a CN2 Line: Check AS4809 and 59.43, and Test Both Outbound and Return Paths
A four-step method to verify whether a CN2 line is genuine: use MTR or Traceroute to check ASNs and IP ranges, test the outbound path, then test the return path (which is easier to fake), and finally retest during peak evening hours, examining China Telecom, China Unicom, and China Mobile separately.
How to Choose a Hong Kong CN2 Server? 6 Criteria to Verify Before Signing
Break down Hong Kong CN2 server selection into two independent capabilities: line quality and DDoS mitigation, providing 6 verifiable criteria covering return-path CN2 validation, peak-hour packet loss, scrubbing mechanisms, blackhole policies, cross-border return routing, and non-HTTP traffic support.
