Bernhard.Linz/openvpn-install
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Merge 3e3c874b4929c3bb97d5aaf16f14487551ba9c9b into 7e32f6ae8373fe66e657cb693518c45768d0ea6e

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Luke Browning 2025-03-19 11:00:07 +08:00 committed by GitHub
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2 changed files with 38 additions and 19 deletions
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1
README.md
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@ -80,6 +80,7 @@ If you want to customise your installation, you can export them or specify them
- `APPROVE_INSTALL=y` - `APPROVE_INSTALL=y`
- `APPROVE_IP=y` - `APPROVE_IP=y`
- `IPV6_SUPPORT=n` - `IPV6_SUPPORT=n`
- `IP_CHOICE=1`
- `PORT_CHOICE=1` - `PORT_CHOICE=1`
- `PROTOCOL_CHOICE=1` - `PROTOCOL_CHOICE=1`
- `DNS=1` - `DNS=1`

56
openvpn-install.sh
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@ -115,19 +115,19 @@ function installUnbound() {
apt-get install -y unbound apt-get install -y unbound
# Configuration # Configuration
echo 'interface: 10.8.0.1 echo "interface: ${IP_RANGE: : -1}1
access-control: 10.8.0.1/24 allow access-control: ${IP_RANGE: : -1}1/24 allow
hide-identity: yes hide-identity: yes
hide-version: yes hide-version: yes
use-caps-for-id: yes use-caps-for-id: yes
prefetch: yes' >>/etc/unbound/unbound.conf prefetch: yes" >>/etc/unbound/unbound.conf
elif [[ $OS =~ (centos|amzn|oracle) ]]; then elif [[ $OS =~ (centos|amzn|oracle) ]]; then
yum install -y unbound yum install -y unbound
# Configuration # Configuration
sed -i 's|# interface: 0.0.0.0$|interface: 10.8.0.1|' /etc/unbound/unbound.conf sed -i "s|# interface: 0.0.0.0$|interface: ${IP_RANGE: : -1}1|" /etc/unbound/unbound.conf
sed -i 's|# access-control: 127.0.0.0/8 allow|access-control: 10.8.0.1/24 allow|' /etc/unbound/unbound.conf sed -i "s|# access-control: 127.0.0.0/8 allow|access-control: ${IP_RANGE: : -1}1/24 allow|" /etc/unbound/unbound.conf
sed -i 's|# hide-identity: no|hide-identity: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-identity: no|hide-identity: yes|' /etc/unbound/unbound.conf
sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf
sed -i 's|use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf sed -i 's|use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf
@ -136,8 +136,8 @@ prefetch: yes' >>/etc/unbound/unbound.conf
dnf install -y unbound dnf install -y unbound
# Configuration # Configuration
sed -i 's|# interface: 0.0.0.0$|interface: 10.8.0.1|' /etc/unbound/unbound.conf sed -i "s|# interface: 0.0.0.0$|interface: ${IP_RANGE: : -1}1|" /etc/unbound/unbound.conf
sed -i 's|# access-control: 127.0.0.0/8 allow|access-control: 10.8.0.1/24 allow|' /etc/unbound/unbound.conf sed -i "s|# access-control: 127.0.0.0/8 allow|access-control: ${IP_RANGE: : -1}1/24 allow|" /etc/unbound/unbound.conf
sed -i 's|# hide-identity: no|hide-identity: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-identity: no|hide-identity: yes|' /etc/unbound/unbound.conf
sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf
sed -i 's|# use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf sed -i 's|# use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf
@ -152,15 +152,15 @@ prefetch: yes' >>/etc/unbound/unbound.conf
mv /etc/unbound/unbound.conf /etc/unbound/unbound.conf.old mv /etc/unbound/unbound.conf /etc/unbound/unbound.conf.old
fi fi
echo 'server: echo "server:
use-syslog: yes use-syslog: yes
do-daemonize: no do-daemonize: no
username: "unbound" username: "unbound"
directory: "/etc/unbound" directory: "/etc/unbound"
trust-anchor-file: trusted-key.key trust-anchor-file: trusted-key.key
root-hints: root.hints root-hints: root.hints
interface: 10.8.0.1 interface: ${IP_RANGE: : -1}1
access-control: 10.8.0.1/24 allow access-control: ${IP_RANGE: : -1}1/24 allow
port: 53 port: 53
num-threads: 2 num-threads: 2
use-caps-for-id: yes use-caps-for-id: yes
@ -168,7 +168,7 @@ prefetch: yes' >>/etc/unbound/unbound.conf
hide-identity: yes hide-identity: yes
hide-version: yes hide-version: yes
qname-minimisation: yes qname-minimisation: yes
prefetch: yes' >/etc/unbound/unbound.conf prefetch: yes" >/etc/unbound/unbound.conf
fi fi
# IPv6 DNS for all OS # IPv6 DNS for all OS
@ -193,9 +193,9 @@ private-address: ::ffff:0:0/96" >>/etc/unbound/unbound.conf
echo 'include: /etc/unbound/openvpn.conf' >>/etc/unbound/unbound.conf echo 'include: /etc/unbound/openvpn.conf' >>/etc/unbound/unbound.conf
# Add Unbound 'server' for the OpenVPN subnet # Add Unbound 'server' for the OpenVPN subnet
echo 'server: echo "server:
interface: 10.8.0.1 interface: ${IP_RANGE: : -1}1
access-control: 10.8.0.1/24 allow access-control: ${IP_RANGE: : -1}1/24 allow
hide-identity: yes hide-identity: yes
hide-version: yes hide-version: yes
use-caps-for-id: yes use-caps-for-id: yes
@ -208,7 +208,7 @@ private-address: 169.254.0.0/16
private-address: fd00::/8 private-address: fd00::/8
private-address: fe80::/10 private-address: fe80::/10
private-address: 127.0.0.0/8 private-address: 127.0.0.0/8
private-address: ::ffff:0:0/96' >/etc/unbound/openvpn.conf private-address: ::ffff:0:0/96" >/etc/unbound/openvpn.conf
if [[ $IPV6_SUPPORT == 'y' ]]; then if [[ $IPV6_SUPPORT == 'y' ]]; then
echo 'interface: fd42:42:42:42::1 echo 'interface: fd42:42:42:42::1
access-control: fd42:42:42:42::/112 allow' >>/etc/unbound/openvpn.conf access-control: fd42:42:42:42::/112 allow' >>/etc/unbound/openvpn.conf
@ -317,6 +317,23 @@ function installQuestions() {
read -rp "Do you want to enable IPv6 support (NAT)? [y/n]: " -e -i $SUGGESTION IPV6_SUPPORT read -rp "Do you want to enable IPv6 support (NAT)? [y/n]: " -e -i $SUGGESTION IPV6_SUPPORT
done done
echo "" echo ""
echo "What IP range settings do you want OpenVPN to use?"
echo " 1) Default: 10.8.0.0"
echo " 2) Custom"
until [[ "$IP_CHOICE" =~ ^[1-2]$ ]]; do
read -rp "IP choice [1-2]: " -e -i 1 IP_CHOICE
done
case $IP_CHOICE in
1)
IP_RANGE="10.8.0.0"
;;
2)
until [[ "$IP_RANGE" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}0$ ]]; do
read -rp "Custom IP [x.x.x.0]: " -e -i 10.8.0.0 IP_RANGE
done
;;
esac
echo ""
echo "What port do you want OpenVPN to listen to?" echo "What port do you want OpenVPN to listen to?"
echo " 1) Default: 1194" echo " 1) Default: 1194"
echo " 2) Custom" echo " 2) Custom"
@ -661,6 +678,7 @@ function installOpenVPN() {
APPROVE_INSTALL=${APPROVE_INSTALL:-y} APPROVE_INSTALL=${APPROVE_INSTALL:-y}
APPROVE_IP=${APPROVE_IP:-y} APPROVE_IP=${APPROVE_IP:-y}
IPV6_SUPPORT=${IPV6_SUPPORT:-n} IPV6_SUPPORT=${IPV6_SUPPORT:-n}
IP_CHOICE=${IP_CHOICE:-1}
PORT_CHOICE=${PORT_CHOICE:-1} PORT_CHOICE=${PORT_CHOICE:-1}
PROTOCOL_CHOICE=${PROTOCOL_CHOICE:-1} PROTOCOL_CHOICE=${PROTOCOL_CHOICE:-1}
DNS=${DNS:-1} DNS=${DNS:-1}
@ -821,7 +839,7 @@ persist-key
persist-tun persist-tun
keepalive 10 120 keepalive 10 120
topology subnet topology subnet
server 10.8.0.0 255.255.255.0 server ${IP_RANGE} 255.255.255.0
ifconfig-pool-persist ipp.txt" >>/etc/openvpn/server.conf ifconfig-pool-persist ipp.txt" >>/etc/openvpn/server.conf
# DNS resolvers # DNS resolvers
@ -843,7 +861,7 @@ ifconfig-pool-persist ipp.txt" >>/etc/openvpn/server.conf
done done
;; ;;
2) # Self-hosted DNS resolver (Unbound) 2) # Self-hosted DNS resolver (Unbound)
echo 'push "dhcp-option DNS 10.8.0.1"' >>/etc/openvpn/server.conf echo "push "dhcp-option DNS ${IP_RANGE: : -1}1"" >>/etc/openvpn/server.conf
if [[ $IPV6_SUPPORT == 'y' ]]; then if [[ $IPV6_SUPPORT == 'y' ]]; then
echo 'push "dhcp-option DNS fd42:42:42:42::1"' >>/etc/openvpn/server.conf echo 'push "dhcp-option DNS fd42:42:42:42::1"' >>/etc/openvpn/server.conf
fi fi
@ -1003,7 +1021,7 @@ verb 3" >>/etc/openvpn/server.conf
# Script to add rules # Script to add rules
echo "#!/bin/sh echo "#!/bin/sh
iptables -t nat -I POSTROUTING 1 -s 10.8.0.0/24 -o $NIC -j MASQUERADE iptables -t nat -I POSTROUTING 1 -s $IP_RANGE/24 -o $NIC -j MASQUERADE
iptables -I INPUT 1 -i tun0 -j ACCEPT iptables -I INPUT 1 -i tun0 -j ACCEPT
iptables -I FORWARD 1 -i $NIC -o tun0 -j ACCEPT iptables -I FORWARD 1 -i $NIC -o tun0 -j ACCEPT
iptables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT iptables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT
@ -1019,7 +1037,7 @@ ip6tables -I INPUT 1 -i $NIC -p $PROTOCOL --dport $PORT -j ACCEPT" >>/etc/iptabl
# Script to remove rules # Script to remove rules
echo "#!/bin/sh echo "#!/bin/sh
iptables -t nat -D POSTROUTING -s 10.8.0.0/24 -o $NIC -j MASQUERADE iptables -t nat -D POSTROUTING -s $IP_RANGE/24 -o $NIC -j MASQUERADE
iptables -D INPUT -i tun0 -j ACCEPT iptables -D INPUT -i tun0 -j ACCEPT
iptables -D FORWARD -i $NIC -o tun0 -j ACCEPT iptables -D FORWARD -i $NIC -o tun0 -j ACCEPT
iptables -D FORWARD -i tun0 -o $NIC -j ACCEPT iptables -D FORWARD -i tun0 -o $NIC -j ACCEPT