KevinLiang10 ae63c51ff1 wgengine/router: add auto selection heuristic for iptables/nftables
This commit replaces the TS_DEBUG_USE_NETLINK_NFTABLES envknob with
a TS_DEBUG_FIREWALL_MODE that should be set to either 'iptables' or
'nftables' to select firewall mode manually, other wise tailscaled
will automatically choose between iptables and nftables depending on
environment and system availability.

updates: #319
Signed-off-by: KevinLiang10 <kevinliang@tailscale.com>
2023-08-08 14:59:06 -04:00
..