ARC2 Proxy
TLS & HTTPS Global · server enum

proxy_min_tls_version

Minimum TLS version the proxy will negotiate with clients.

Config key
proxy_min_tls_version
Scope
Global · server
Type
enum
Default
TLS_1_3

Sets the lowest TLS version a client may use. Accepted values are TLS_1_0, TLS_1_1, TLS_1_2 and TLS_1_3. An invalid value is rejected at startup.

🛡️Recommendation
Keep this at TLS_1_3, or TLS_1_2 if you still serve older enterprise clients. TLS 1.0/1.1 are deprecated and should only ever be a temporary compatibility measure.
proxy_min_tls_version = "TLS_1_3"