From 7841a1801d5622a7d310d0f4d71901a9d976eb35 Mon Sep 17 00:00:00 2001 From: Unknown Date: Fri, 28 Feb 2020 17:23:36 -0500 Subject: [PATCH] Add custom IP range --- openvpn-install.sh | 46 ++++++++++++++++++++++++++++++++-------------- 1 file changed, 32 insertions(+), 14 deletions(-) diff --git a/openvpn-install.sh b/openvpn-install.sh index 90ea433..c38d142 100755 --- a/openvpn-install.sh +++ b/openvpn-install.sh @@ -104,8 +104,8 @@ function installUnbound () { apt-get install -y unbound # Configuration - echo 'interface: 10.8.0.1 -access-control: 10.8.0.1/24 allow + echo 'interface: ${VAR: : -1}1 +access-control: ${VAR: : -1}1/24 allow hide-identity: yes hide-version: yes use-caps-for-id: yes @@ -115,8 +115,8 @@ prefetch: yes' >> /etc/unbound/unbound.conf yum install -y unbound # Configuration - sed -i 's|# interface: 0.0.0.0$|interface: 10.8.0.1|' /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|# interface: 0.0.0.0$|interface: ${VAR: : -1}1|' /etc/unbound/unbound.conf + sed -i 's|# access-control: 127.0.0.0/8 allow|access-control: ${VAR: : -1}1/24 allow|' /etc/unbound/unbound.conf sed -i 's|# hide-identity: no|hide-identity: yes|' /etc/unbound/unbound.conf sed -i 's|# hide-version: no|hide-version: yes|' /etc/unbound/unbound.conf sed -i 's|use-caps-for-id: no|use-caps-for-id: yes|' /etc/unbound/unbound.conf @@ -125,8 +125,8 @@ prefetch: yes' >> /etc/unbound/unbound.conf dnf install -y unbound # Configuration - sed -i 's|# interface: 0.0.0.0$|interface: 10.8.0.1|' /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|# interface: 0.0.0.0$|interface: ${VAR: : -1}1|' /etc/unbound/unbound.conf + sed -i 's|# access-control: 127.0.0.0/8 allow|access-control: ${VAR: : -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-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 @@ -146,8 +146,8 @@ prefetch: yes' >> /etc/unbound/unbound.conf directory: "/etc/unbound" trust-anchor-file: trusted-key.key root-hints: root.hints - interface: 10.8.0.1 - access-control: 10.8.0.1/24 allow + interface: ${VAR: : -1}1 + access-control: ${VAR: : -1}1/24 allow port: 53 num-threads: 2 use-caps-for-id: yes @@ -174,8 +174,8 @@ private-address: ::ffff:0:0/96" >> /etc/unbound/unbound.conf # Add Unbound 'server' for the OpenVPN subnet echo 'server: -interface: 10.8.0.1 -access-control: 10.8.0.1/24 allow +interface: ${VAR: : -1}1 +access-control: ${VAR: : -1}1/24 allow hide-identity: yes hide-version: yes use-caps-for-id: yes @@ -243,6 +243,23 @@ function installQuestions () { read -rp "Do you want to enable IPv6 support (NAT)? [y/n]: " -e -i $SUGGESTION IPV6_SUPPORT done echo "" + echo "What IP range settings do you want OpenVPN to use?" + echo " 1) Default: 10.8.0.0" + echo " 2) Custom" + until [[ "$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" =~ ^([0-9]{1,3}\.){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 " 1) Default: 1194" echo " 2) Custom" @@ -586,6 +603,7 @@ function installOpenVPN () { APPROVE_INSTALL=${APPROVE_INSTALL:-y} APPROVE_IP=${APPROVE_IP:-y} IPV6_SUPPORT=${IPV6_SUPPORT:-n} + IP_CHOICE=${IP_CHOICE:-1} PORT_CHOICE=${PORT_CHOICE:-1} PROTOCOL_CHOICE=${PROTOCOL_CHOICE:-1} DNS=${DNS:-1} @@ -723,7 +741,7 @@ persist-key persist-tun keepalive 10 120 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 # DNS resolvers @@ -742,7 +760,7 @@ ifconfig-pool-persist ipp.txt" >> /etc/openvpn/server.conf done ;; 2) - echo 'push "dhcp-option DNS 10.8.0.1"' >> /etc/openvpn/server.conf + echo 'push "dhcp-option DNS ${VAR: : -1}1"' >> /etc/openvpn/server.conf ;; 3) # Cloudflare echo 'push "dhcp-option DNS 1.0.0.1"' >> /etc/openvpn/server.conf @@ -896,7 +914,7 @@ verb 3" >> /etc/openvpn/server.conf # Script to add rules 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 FORWARD 1 -i $NIC -o tun0 -j ACCEPT iptables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT @@ -911,7 +929,7 @@ ip6tables -I FORWARD 1 -i tun0 -o $NIC -j ACCEPT" >> /etc/iptables/add-openvpn-r # Script to remove rules 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 FORWARD -i $NIC -o tun0 -j ACCEPT iptables -D FORWARD -i tun0 -o $NIC -j ACCEPT