skcptun is encrypted KCP tunnel for Linux and MacOS, implemented in C language.
Dependency on OpenSSL library,install it first.
cd skcptun
mkdir build
cd build
cmake ..
make
Turn on the option for IP forwarding, add the following lines to /etc/sysctl.conf, then run sysctl -p.
net.ipv4.ip_forward=1
net.ipv4.conf.all.forwarding=1
Remote(server) environment preparation:
iptables -P FORWARD ACCEPT
iptables -t nat -A POSTROUTING -s [your tun ip]/24 -o enp0s1 -j MASQUERADE
Local(client) environment preparation:
iptables -P FORWARD ACCEPT
# make necessary IP route settings:
ip route add [your ip] via [your tun ip]
Run:
./skcptun configfile
View running status from log file:
ps aux | grep kcptun | grep -v grep | awk '{print $2}' | xargs kill -SIGUSR1
# Required
mode = local
remote_ip = 127.0.0.1
remote_port = 1111
tun_ip = 192.1.1.1
tun_mask = 255.255.255.0
ticket = yourticketyourticketyourticket12
# Optional
password = yourpassword
ping_interval = 1000
log_level= DEBUG
log_file = /tmp/skcptun.log
# Required
mode = remote
speed_mode = 1
local_ip = 0.0.0.0
local_port = 1111
tun_ip = 192.1.1.1
tun_mask = 255.255.255.0
ticket = yourticketyourticketyourticket12
# Optional
mtu = 1500
kcp_interval = 20
keepalive = 60000
password = yourpassword
log_level= DEBUG
log_file = /tmp/skcptun.log
- Dynamically set kcp parameters
- Dynamically IV
- handshake configuration, tun ip.
- multi tickets
- antispam
- support ipv6
- optmize
