X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=doc%2Ftinc.texi;h=442da2f96977cf95829e3aa58b45a8d4e1d7f4d4;hb=4b2ddded2c8ae1a1a5930637552eeb48f30d6530;hp=c940eddb48816ef126bb1f72e55a7b8f638e41b0;hpb=7939ee12836bf2ef772f2a6a1e805ee0d64a8e70;p=tinc

diff --git a/doc/tinc.texi b/doc/tinc.texi
index c940eddb..442da2f9 100644
--- a/doc/tinc.texi
+++ b/doc/tinc.texi
@@ -1081,8 +1081,8 @@ This will allow direct communication using LAN addresses, even if both peers are
 and they only ConnectTo a third node outside the NAT,
 which normally would prevent the peers from learning each other's LAN address.
 
-Currently, local discovery is implemented by sending broadcast packets to the LAN during path MTU discovery.
-This feature may not work in all possible situations.
+Currently, local discovery is implemented by sending some packets to the local address of the node during UDP discovery.
+This will not work with old nodes that don't transmit their local address.
 
 @cindex LocalDiscoveryAddress
 @item LocalDiscoveryAddress <@var{address}>
@@ -1239,9 +1239,14 @@ using TCP while it determines if a node is reachable over UDP. If it is disabled
 tinc always assumes a node is reachable over UDP.
 Note that tinc will never use UDP with nodes that have TCPOnly enabled.
 
+@cindex UDPDiscoveryKeepaliveInterval
+@item UDPDiscoveryKeepaliveInterval = <seconds> (9)
+The minimum amount of time between sending UDP ping datagrams to check UDP connectivity once it has been established.
+Note that these pings are large, since they are used to verify link MTU as well.
+
 @cindex UDPDiscoveryInterval
-@item UDPDiscoveryInterval = <seconds> (9)
-The minimum amount of time between sending UDP ping datagrams to test UDP connectivity.
+@item UDPDiscoveryInterval = <seconds> (2)
+The minimum amount of time between sending UDP ping datagrams to try to establish UDP connectivity.
 
 @cindex UDPDiscoveryTimeout
 @item UDPDiscoveryTimeout = <seconds> (30)
@@ -2288,6 +2293,7 @@ To set a variable for a specific host, use the notation @var{host}.@var{variable
 @cindex add
 @item add @var{variable} @var{value}
 As above, but without removing any previously existing configuration variables.
+If the variable already exists with the given value, nothing happens.
 
 @cindex del
 @item del @var{variable} [@var{value}]
@@ -2431,11 +2437,21 @@ Dump VPN traffic going through the local tinc node in pcap-savefile format to st
 from where it can be redirected to a file or piped through a program that can parse it directly,
 such as tcpdump.
 
-@cindex network [@var{netname}]
-@item network
+@cindex network
+@item network [@var{netname}]
 If @var{netname} is given, switch to that network.
 Otherwise, display a list of all networks for which configuration files exist.
 
+@cindex fsck
+@item fsck
+This will check the configuration files for possible problems,
+such as unsafe file permissions, missing executable bit on script,
+unknown and obsolete configuration variables, wrong public and/or private keys, and so on.
+
+When problems are found, this will be printed on a line with WARNING or ERROR in front of it.
+Most problems must be corrected by the user itself, however in some cases (like file permissions and missing public keys),
+tinc will ask if it should fix the problem.
+
 @end table
 
 @c ==================================================================