.It Fl -version
Output version information and exit.
.El
+.Sh ENVIRONMENT VARIABLES
+.Bl -tag -width indent
+.It Ev NETNAME
+If no netname is specified on the command line with the
+.Fl n
+option, the value of this environment variable is used.
+.El
.Sh COMMANDS
.zZ
.Bl -tag -width indent
Shows the PID of the currently running
.Xr tincd 8 .
.It generate-keys Op bits
+Generate both RSA and ECDSA keypairs (see below) and exit.
+.It generate-ecdsa-keys
+Generate public/private ECDSA keypair and exit.
+.It generate-rsa-keys Op bits
Generate public/private RSA keypair and exit.
If
.Ar bits
-is omitted, the default length will be 1024 bits.
+is omitted, the default length will be 2048 bits.
When saving keys to existing files, tinc will not delete the old keys;
you have to remove them manually.
.It dump nodes
.It debug Ar N
Sets debug level to
.Ar N .
+.It log Op Ar N
+Capture log messages from a running tinc daemon.
+An optional debug level can be given that will be applied only for log messages sent to
+.Nm tincctl .
.It retry
Forces
.Xr tincd 8