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Various corrections.

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This commit is contained in:
Philippe Favre
2025-03-02 04:49:01 +01:00
parent 3cdb8e01fa
commit 34f4f01fe5
1 changed files with 20 additions and 19 deletions
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39
networking/vpn-wg-site-to-vps.conf
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@@ -1,11 +1,11 @@
# Description:
# This configuration allows you to connect an OPNsense or pfSense router at home and connect it to a VPS IP.
# It use public IP to redirect traffic to different machines behind the VPS for security reasons rather than opening ports on your home router.
# This configuration allows you to connect an OPNsense or pfSense router at hoport and connect it to a VPS IP.
# It use public IP to redirect traffic to different machines behind the VPS for security reasons rather than opening ports on your hoport router.
# Prerequisites:
# - Have a VPS server at OVH or ionos with Debian
# - Install https://github.com/angristan/wireguard-install and generate a client
# - Know the network interface with the 'ip a' command and replace ens3 with the appropriate interface
# - Know the network interface with the 'ip a' command and replace ens6 with the appropriate interface
# - Know the public address or IP addresses of the clients
# Backup of the current configuration before modifying it
@@ -15,31 +15,32 @@
# Modification of the WireGuard configuration
# Open the configuration file to modify it
# nano /etc/wireguard/wg0.conf
# Delete the columns what is between [Interface] and ### Client
# Delete the columns what is between 'PrivateKey = x'and '### Client opnsense'
# Replace 'add-port' with 'add-ip-public' information
# Configuration of the WireGuard interface on the server side
[Interface]
Address = 10.66.66.1/24, fd42:42:42::1/64
ListenPort = 51737
ListenPort = 666
PrivateKey = x
# iptables rules to apply after setting up the WireGuard interface
PostUp = iptables -I INPUT -p udp --dport 51737 -j ACCEPT
PostUp = iptables -A FORWARD -i wg0 -o ens3 -j ACCEPT
PostUp = iptables -A FORWARD -i ens3 -o wg0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
PostUp = iptables -I INPUT -p udp --dport add-port -j ACCEPT
PostUp = iptables -A FORWARD -i wg0 -o ens6 -j ACCEPT
PostUp = iptables -A FORWARD -i ens6 -o wg0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
PostUp = iptables -I FORWARD -i wg0 -s 10.66.66.0/24 -d 10.66.66.0/24 -j DROP
PostUp = iptables -t nat -A POSTROUTING -s 10.66.66.2/32 -o ens3 -j SNAT --to-source change-ip-public # NAT for outgoing traffic from the opnsense client
PostUp = iptables -t nat -A PREROUTING -i ens3 -d change-ip-public -p tcp --dport 80 -j DNAT --to-destination 10.66.66.2:80 # Redirect port 80 to the opnsense client
PostUp = iptables -t nat -A PREROUTING -i ens3 -d change-ip-public -p tcp --dport 443 -j DNAT --to-destination 10.66.66.2:443 # Redirect port 443 to the opnsense client
PostUp = iptables -t nat -A POSTROUTING -s 10.66.66.2/32 -o ens6 -j SNAT --to-source add-ip-public # NAT for outgoing traffic from the opnsense client
PostUp = iptables -t nat -A PREROUTING -i ens6 -d add-ip-public -p tcp --dport 80 -j DNAT --to-destination 10.66.66.2:80 # Redirect port 80 to the opnsense client
PostUp = iptables -t nat -A PREROUTING -i ens6 -d add-ip-public -p tcp --dport 443 -j DNAT --to-destination 10.66.66.2:443 # Redirect port 443 to the opnsense client
# iptables rules to remove when deleting the WireGuard interface
PostDown = iptables -D INPUT -p udp --dport 51737 -j ACCEPT || true
PostDown = iptables -D FORWARD -i wg0 -o ens3 -j ACCEPT || true
PostDown = iptables -D FORWARD -i ens3 -o wg0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT || true
PostDown = iptables -t nat -D POSTROUTING -s 10.66.66.2/32 -o ens3 -j SNAT --to-source change-ip-public || true
PostDown = iptables -t nat -D PREROUTING -i ens3 -d change-ip-public -p tcp --dport 80 -j DNAT --to-destination 10.66.66.2:80 || true
PostDown = iptables -t nat -D PREROUTING -i ens3 -d change-ip-public -p tcp --dport 25 -j DNAT --to-destination 10.66.66.2:443 || true
PostDown = iptables -D INPUT -p udp --dport add-port -j ACCEPT || true
PostDown = iptables -D FORWARD -i wg0 -o ens6 -j ACCEPT || true
PostDown = iptables -D FORWARD -i ens6 -o wg0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT || true
PostDown = iptables -t nat -D POSTROUTING -s 10.66.66.2/32 -o ens6 -j SNAT --to-source add-ip-public || true
PostDown = iptables -t nat -D PREROUTING -i ens6 -d add-ip-public -p tcp --dport 80 -j DNAT --to-destination 10.66.66.2:80 || true
PostDown = iptables -t nat -D PREROUTING -i ens6 -d add-ip-public -p tcp --dport 443 -j DNAT --to-destination 10.66.66.2:443 || true
### Client opnsense
[Peer]
@@ -52,7 +53,7 @@ AllowedIPs = 10.66.66.2/32,fd42:42:42::2/128
# sudo systemctl status wg-quick@wg0
# OPNsense configuration:
# Follow the steps described in the OPNsense documentation:
# Follow the steps described in the OPNsense docuportntation:
# https://docs.opnsense.org
# Configure port forwarding from the OPNsense router to the local IP of the WireGuard client
# For example, forward the port from 192.168.1.x to change-ip-wglocal-1
# For example, forward the port from 192.168.1.x to add-ip-wglocal-1