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一.点对点

yum install epel-release elrepo-release -y
yum install yum-plugin-elrepo -y
yum install kmod-wireguard wireguard-tools -y
reboot

server A
umask 077
wg genkey > private
wg pubkey < private
ip link add wg0 type wireguard
ip addr add 192.168.1.1/24 dev wg0
wg set wg0 private-key ./private
ip link set wg0 up[root@localhost ~]# wg
interface: wg0public key: ljISFZM9ueE/1EDSK5TdClJX1jXed33VFF+Hy=private key: (hidden)listening port: 60419wg set wg0 peer dRFqzYMolk1lYDNZCjH8g1hhKxvqCg/tr66MxHE= allowed-ips 192.168.1.2/32 endpoint 192.168.6.22:55109

server B
umask 077
wg genkey > private
wg pubkey < private
ip link add wg0 type wireguard
ip addr add 192.168.1.2/24 dev wg0
wg set wg0 private-key ./private
ip link set wg0 up[root@localhost ~]# wg
interface: wg0public key: dRFqzYMolk1lYDNZCjH8g1hhKxvqCg/tr66MxHE=private key: (hidden)listening port: 55109wg set wg0 peer ljISFZM9ueE/1EDSK5TdClJX1jXed33VFF+Hy= allowed-ips 192.168.1.1/32 endpoint 192.168.6.21:60419

备注：删除peer
wg set wg0 peer ljISFZM9ueE/1EDSK5TdClJX1jXed33VFF+Hy= remove
直接应用配置文件：
wg setconf wg0 /etc/wireguard/wg0.conf

二.中心网关,实现nat穿透

弊端:流量全部经过中心网关,带宽上限受限于中心网关

中心IP: 3.3.3.3(公网ＩＰ) 虚拟地址:192.168.70.1
防火墙后服务器
serverA:192.168.1.21  192.168.70.21
serverB:172.16.10.22  192.168.70.22

中心IP: 3.3.3.3(公网ＩＰ) 虚拟地址:192.168.70.1
[Interface]
PrivateKey = yAnz5TF+lXXJte14tji3zlMNq+hd2rYUIgJBgB3fBmk=
ListenPort = 51820[Peer]
PublicKey = gN65BkIKy1eCE9pP1wdc8ROUtkHLF2PfAqYdyYBz6EA=
AllowedIPs = 192.168.70.21/32[Peer]
PublicKey = gN65BkIKy1eCE9pP1wdc8ROUtkHLF2PfAqYdyYBz6EB=
AllowedIPs = 192.168.70.22/32

serverA
[Interface]
# 本机密钥
PrivateKey = WA+UjrzBYPOhg9+O6o/RrOGh9T1E/rQYU=
# 监听端口
ListenPort = 51921[Peer]
# 对端的publickey
PublicKey = QZUvy0+ZU/hSqLkmGW1yNq4dV5unXi5oXrbOz9npQ0I=
Endpoint = 3.3.3.3:51820
# 对端地址
AllowedIPs = 192.168.70.0/24
PersistentKeepalive = 24  #必须,不然会话超时会无法互通

serverB
[Interface]
# 本机密钥
PrivateKey = WA+UjrzBYPOhg9+O6o/RrOGh9T1E/rQYU
# 监听端口
ListenPort = 51921[Peer]
# 对端的publickey
PublicKey = QZUvy0+ZU/hSqLkmGW1yNq4dV5unXi5oXrbOz9npQ0I=
Endpoint = 3.3.3.3:51820
# 对端地址
AllowedIPs = 192.168.70.0/24
PersistentKeepalive = 24  #必须,不然会话超时会无法互通

成功连接后,可以实现  serverA , serverB , 及中心间在192.168.70.0/24网段上全互通

三.借助registry实现双向nat穿透

需要借助registry实现 udp打洞, 待二开