-@node Example usage
+@node Example
@section Example usage
Let's assume that there is some insecure link between your computer and
WiFi-reachable gateway.
-@itemize @bullet
+@itemize
@item You have got @code{wlan0} NIC with 192.168.0/24 network on it.
@item You want to create virtual encrypted and authenticated 172.16.0/24
network and use it as a default transport.
@end itemize
@strong{Install}. At first you must @ref{Installation, install} this
-software: download, check the signature, compile.
+software: download, @ref{Integrity, check the signature}, compile.
-Do not forget about setting @code{GOMAXPROC} environment variable for
-using more than one CPU on both sides:
+@strong{Prepare the client}. Generate client's verifier for Alice as an
+example:
-@example
-% export GOMAXPROC=4
-@end example
-
-@strong{Prepare the server}. Create the new client, named (for example)
-"Alice":
-
-@example
-% ./utils/newclient.sh Alice
-Place verifier to peers/6d4ac605ce8dc37c2f0bf21cb542a713/verifier
-@end example
+@verbatim
+client% ./utils/newclient.sh Alice
+Enter passphrase:
+Your client verifier is: $argon2d$m=4096,t=128,p=1$bwR5VjeCYIQaa8SeaI3rqg
-"6d4ac605ce8dc37c2f0bf21cb542a713" -- is the new client's identity.
+Place the following JSON configuration entry on the server's side:
-@strong{Prepare the client}. Generate @ref{Verifier} for known client
-identity:
+ "Alice": {
+ "up": "/path/to/up.sh",
+ "iface": "or TAP interface name",
+ "verifier": "$argon2d$m=4096,t=128,p=1$bwR5VjeCYIQaa8SeaI3rqg$KCNIqfS4DGsBTtVytamAzcISgrlEWvNxan1UfBrFu10"
+ }
-@example
-% ./utils/storekey.sh /tmp/passphrase
-Enter passphrase:[my secure passphrase is here]
-% govpn-verifier -id 6d4ac605ce8dc37c2f0bf21cb542a713 -key /tmp/passphrase
-562556cc9ecf0019b4cf45bcdf42706944ae9b3ac7c73ad299d83f2d5a169c55
-% rm /tmp/passphrase
-@end example
+Verifier was generated with:
-"562556cc9ecf0019b4cf45bcdf42706944ae9b3ac7c73ad299d83f2d5a169c55" --
-this is verifier itself.
+ ./utils/storekey.sh /tmp/passphrase
+ govpn-verifier -key /tmp/passphrase
+@end verbatim
-@strong{Save verifier on server}.
+@strong{Prepare the server}. Add this entry to @code{peers.json}
+configuration file:
-@example
-% cat > peers/6d4ac605ce8dc37c2f0bf21cb542a713/verifier <<EOF
-562556cc9ecf0019b4cf45bcdf42706944ae9b3ac7c73ad299d83f2d5a169c55
-EOF
-@end example
+@verbatim
+{
+ "Alice": {
+ "iface": "tap10",
+ "verifier": "$argon2d$m=4096,t=128,p=1$bwR5VjeCYIQaa8SeaI3rqg$KCNIqfS4DGsBTtVytamAzcISgrlEWvNxan1UfBrFu10"
+ }
+}
+@end verbatim
@strong{Prepare network on GNU/Linux IPv4 server}:
@example
-server% echo "echo tap10" >> peers/6d4ac605ce8dc37c2f0bf21cb542a713/up.sh
+server% umask 077
server% ip addr add 192.168.0.1/24 dev wlan0
server% tunctl -t tap10
server% ip link set mtu 1432 dev tap10
@example
client% govpn-client \
-key key.txt \
- -id 6d4ac605ce8dc37c2f0bf21cb542a713 \
+ -verifier '$argon2d$m=4096,t=128,p=1$bwR5VjeCYIQaa8SeaI3rqg' \
-iface tap10 \
-remote 192.168.0.1:1194 \
-mtu 1472
client% route -6 add default fc00::1
client% govpn-client \
-key key.txt \
- -id 6d4ac605ce8dc37c2f0bf21cb542a713 \
+ -verifier '$argon2d$m=4096,t=128,p=1$bwR5VjeCYIQaa8SeaI3rqg' \
-iface tap10 \
-remote "[fe80::1%me0]":1194
@end example