New features

• The nft executable can now be pinned in the letmeind.conf configuration file to avoid $PATH searches from the letmeinfwd daemon running as root.

• Use TCP_NODELAY for TCP connections to reduce knock latency.

Distribution packaging

In the default letmeind.conf configuration installed from distribution packaging install scripts please configure

[NFTABLES]
exe = nft

to the default path of the nft executable in your distribution.

For example:

[NFTABLES]
exe = /usr/sbin/nft