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Minor changes in wording and some optimizations

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hwdsl2 2016-01-19 02:23:21 -06:00
parent be5e6557bc
commit acb2000e40
4 changed files with 71 additions and 79 deletions
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63
vpnsetup.sh
View File

@ -2,11 +2,11 @@
# #
# Amazon EC2 user-data file for automatic configuration of IPsec/L2TP VPN server # Amazon EC2 user-data file for automatic configuration of IPsec/L2TP VPN server
# on a Ubuntu or Debian instance. Tested with Ubuntu 14.04 & 12.04 and Debian 8. # on a Ubuntu or Debian instance. Tested with Ubuntu 14.04 & 12.04 and Debian 8.
# With minor modifications, this script *can also be used* on dedicated servers # Besides EC2, this script *can also be used* on dedicated servers or any KVM-
# or any KVM- or XEN-based Virtual Private Server (VPS) from other providers. # or Xen-based Virtual Private Server (VPS) from other providers.
# #
# DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! THIS IS MEANT TO BE RUN WHEN # DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! THIS IS MEANT TO BE RUN
# YOUR AMAZON EC2 INSTANCE STARTS! # ON YOUR DEDICATED SERVER OR VPS!
# #
# Copyright (C) 2014 Lin Song # Copyright (C) 2014 Lin Song
# Based on the work of Thomas Sarlandie (Copyright 2012) # Based on the work of Thomas Sarlandie (Copyright 2012)
@ -19,12 +19,12 @@
if [ "$(uname)" = "Darwin" ]; then if [ "$(uname)" = "Darwin" ]; then
echo 'DO NOT run this script on your Mac! It should only be run on a newly-created EC2 instance' echo 'DO NOT run this script on your Mac! It should only be run on a newly-created EC2 instance'
echo 'or other Dedicated Server / VPS, after you have modified it to set the variables below.' echo 'or other dedicated server / VPS, after you have modified it to set the variables below.'
exit 1 exit 1
fi fi
# Please define your own values for these variables # Please define your own values for these variables
# Escape *all* non-alphanumeric characters with a backslash (or 3 backslashes for \ and "). # Escape *all* non-alphanumeric characters with a backslash (3 backslashes for \ and ").
# Examples: \ --> \\\\, " --> \\\", ' --> \', $ --> \$, ` --> \`, [space] --> \[space] # Examples: \ --> \\\\, " --> \\\", ' --> \', $ --> \$, ` --> \`, [space] --> \[space]
IPSEC_PSK=your_very_secure_key IPSEC_PSK=your_very_secure_key
VPN_USER=your_username VPN_USER=your_username
@ -40,7 +40,7 @@ fi
if [ -f "/proc/user_beancounters" ]; then if [ -f "/proc/user_beancounters" ]; then
echo "This script does NOT support OpenVZ VPS." echo "This script does NOT support OpenVZ VPS."
echo "Try Nyr's OpenVPN script instead: https://github.com/Nyr/openvpn-install" echo "Try Nyr's OpenVPN script: https://github.com/Nyr/openvpn-install"
exit 1 exit 1
fi fi
@ -49,15 +49,13 @@ if [ "$(id -u)" != 0 ]; then
exit 1 exit 1
fi fi
# Make sure "eth0" is available
if [ ! -f /sys/class/net/eth0/operstate ]; then if [ ! -f /sys/class/net/eth0/operstate ]; then
echo "Network interface 'eth0' is not available. Aborting." echo "Network interface 'eth0' is not available. Aborting."
exit 1 exit 1
fi fi
# Check for empty VPN variables
if [ -z "$IPSEC_PSK" ] || [ -z "$VPN_USER" ] || [ -z "$VPN_PASSWORD" ]; then if [ -z "$IPSEC_PSK" ] || [ -z "$VPN_USER" ] || [ -z "$VPN_PASSWORD" ]; then
echo "The VPN credentials cannot be empty. Please re-edit the VPN script." echo "VPN credentials cannot be empty, please edit the VPN script."
exit 1 exit 1
fi fi
@ -95,11 +93,11 @@ PRIVATE_IP=$(wget --retry-connrefused -t 3 -T 15 -qO- 'http://169.254.169.254/la
# Check IPs for correct format # Check IPs for correct format
IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$" IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
if printf %s "$PUBLIC_IP" | grep -vEq "$IP_REGEX"; then if printf %s "$PUBLIC_IP" | grep -vEq "$IP_REGEX"; then
echo "Could not find valid Public IP, please edit the VPN script manually." echo "Cannot find valid Public IP, please edit the VPN script manually."
exit 1 exit 1
fi fi
if printf %s "$PRIVATE_IP" | grep -vEq "$IP_REGEX"; then if printf %s "$PRIVATE_IP" | grep -vEq "$IP_REGEX"; then
echo "Could not find valid Private IP, please edit the VPN script manually." echo "Cannot find valid Private IP, please edit the VPN script manually."
exit 1 exit 1
fi fi
@ -114,20 +112,21 @@ apt-get -y install xl2tpd
# Install Fail2Ban to protect SSH server # Install Fail2Ban to protect SSH server
apt-get -y install fail2ban apt-get -y install fail2ban
# Compile and install Libreswan (https://libreswan.org/) # Compile and install Libreswan
SWAN_VER=3.16 SWAN_VER=3.16
SWAN_FILE="libreswan-${SWAN_VER}.tar.gz" SWAN_FILE="libreswan-${SWAN_VER}.tar.gz"
SWAN_URL="https://download.libreswan.org/${SWAN_FILE}" SWAN_URL="https://download.libreswan.org/${SWAN_FILE}"
wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL" wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL"
[ ! -f "$SWAN_FILE" ] && { echo "Could not retrieve Libreswan source file. Aborting."; exit 1; } [ ! -f "$SWAN_FILE" ] && { echo "Cannot retrieve Libreswan source file. Aborting."; exit 1; }
/bin/rm -rf "/opt/src/libreswan-${SWAN_VER}" /bin/rm -rf "/opt/src/libreswan-${SWAN_VER}"
tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE" tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE"
cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source directory. Aborting."; exit 1; } cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source dir. Aborting."; exit 1; }
make programs && make install make programs && make install
# Prepare various config files # Prepare various config files
# Create Libreswan configuration # Create IPsec (Libreswan) configuration
/bin/cp -f /etc/ipsec.conf "/etc/ipsec.conf.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null SYS_DT="$(/bin/date +%Y-%m-%d-%H:%M:%S)"
/bin/cp -f /etc/ipsec.conf "/etc/ipsec.conf.old-${SYS_DT}" 2>/dev/null
cat > /etc/ipsec.conf <<EOF cat > /etc/ipsec.conf <<EOF
version 2.0 version 2.0
@ -166,13 +165,13 @@ conn vpnpsk
EOF EOF
# Specify IPsec PSK # Specify IPsec PSK
/bin/cp -f /etc/ipsec.secrets "/etc/ipsec.secrets.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ipsec.secrets "/etc/ipsec.secrets.old-${SYS_DT}" 2>/dev/null
cat > /etc/ipsec.secrets <<EOF cat > /etc/ipsec.secrets <<EOF
$PUBLIC_IP %any : PSK "$IPSEC_PSK" $PUBLIC_IP %any : PSK "$IPSEC_PSK"
EOF EOF
# Create xl2tpd config # Create xl2tpd config
/bin/cp -f /etc/xl2tpd/xl2tpd.conf "/etc/xl2tpd/xl2tpd.conf.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/xl2tpd/xl2tpd.conf "/etc/xl2tpd/xl2tpd.conf.old-${SYS_DT}" 2>/dev/null
cat > /etc/xl2tpd/xl2tpd.conf <<EOF cat > /etc/xl2tpd/xl2tpd.conf <<EOF
[global] [global]
port = 1701 port = 1701
@ -195,7 +194,7 @@ length bit = yes
EOF EOF
# Specify xl2tpd options # Specify xl2tpd options
/bin/cp -f /etc/ppp/options.xl2tpd "/etc/ppp/options.xl2tpd.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ppp/options.xl2tpd "/etc/ppp/options.xl2tpd.old-${SYS_DT}" 2>/dev/null
cat > /etc/ppp/options.xl2tpd <<EOF cat > /etc/ppp/options.xl2tpd <<EOF
ipcp-accept-local ipcp-accept-local
ipcp-accept-remote ipcp-accept-remote
@ -214,16 +213,16 @@ connect-delay 5000
EOF EOF
# Create VPN credentials # Create VPN credentials
/bin/cp -f /etc/ppp/chap-secrets "/etc/ppp/chap-secrets.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ppp/chap-secrets "/etc/ppp/chap-secrets.old-${SYS_DT}" 2>/dev/null
cat > /etc/ppp/chap-secrets <<EOF cat > /etc/ppp/chap-secrets <<EOF
# Secrets for authentication using CHAP # Secrets for authentication using CHAP
# client server secret IP addresses # client server secret IP addresses
"$VPN_USER" l2tpd "$VPN_PASSWORD" * "$VPN_USER" l2tpd "$VPN_PASSWORD" *
EOF EOF
# Update sysctl settings for VPN and better performance # Update sysctl settings for VPN and performance
if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then
/bin/cp -f /etc/sysctl.conf "/etc/sysctl.conf.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/sysctl.conf "/etc/sysctl.conf.old-${SYS_DT}" 2>/dev/null
cat >> /etc/sysctl.conf <<EOF cat >> /etc/sysctl.conf <<EOF
# Added by hwdsl2 VPN script # Added by hwdsl2 VPN script
@ -261,11 +260,11 @@ net.ipv4.tcp_wmem = 10240 87380 12582912
EOF EOF
fi fi
# Create basic IPTables rules. First, check if there are existing IPTables rules loaded. # Create basic IPTables rules. First check if there are existing IPTables rules loaded.
# 1. If IPTables is "empty", write out the new set of rules below. # 1. If IPTables is "empty", write out the new set of rules below.
# 2. If *not* empty, insert new rules and save them together with existing ones. # 2. If *not* empty, insert new rules and save them together with existing ones.
if ! grep -qs "hwdsl2 VPN script" /etc/iptables.rules; then if ! grep -qs "hwdsl2 VPN script" /etc/iptables.rules; then
/bin/cp -f /etc/iptables.rules "/etc/iptables.rules.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/iptables.rules "/etc/iptables.rules.old-${SYS_DT}" 2>/dev/null
/usr/sbin/service fail2ban stop >/dev/null 2>&1 /usr/sbin/service fail2ban stop >/dev/null 2>&1
if [ "$(/sbin/iptables-save | grep -c '^\-')" = "0" ]; then if [ "$(/sbin/iptables-save | grep -c '^\-')" = "0" ]; then
cat > /etc/iptables.rules <<EOF cat > /etc/iptables.rules <<EOF
@ -326,9 +325,9 @@ echo "# Modified by hwdsl2 VPN script" > /etc/iptables.rules
fi fi
fi fi
# Create basic IP6Tables rules # Create basic IP6Tables (IPv6) rules
if ! grep -qs "hwdsl2 VPN script" /etc/ip6tables.rules; then if ! grep -qs "hwdsl2 VPN script" /etc/ip6tables.rules; then
/bin/cp -f /etc/ip6tables.rules "/etc/ip6tables.rules.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ip6tables.rules "/etc/ip6tables.rules.old-${SYS_DT}" 2>/dev/null
cat > /etc/ip6tables.rules <<EOF cat > /etc/ip6tables.rules <<EOF
# Added by hwdsl2 VPN script # Added by hwdsl2 VPN script
*filter *filter
@ -358,9 +357,9 @@ cat > /etc/network/if-pre-up.d/ip6tablesload <<EOF
exit 0 exit 0
EOF EOF
# Update rc.local to start services at system boot # Update rc.local to start services at boot
if ! grep -qs "hwdsl2 VPN script" /etc/rc.local; then if ! grep -qs "hwdsl2 VPN script" /etc/rc.local; then
/bin/cp -f /etc/rc.local "/etc/rc.local.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/rc.local "/etc/rc.local.old-${SYS_DT}" 2>/dev/null
/bin/sed --follow-symlinks -i -e '/^exit 0/d' /etc/rc.local /bin/sed --follow-symlinks -i -e '/^exit 0/d' /etc/rc.local
cat >> /etc/rc.local <<EOF cat >> /etc/rc.local <<EOF
@ -373,17 +372,17 @@ exit 0
EOF EOF
fi fi
# Initialize Libreswan database # Initialize Libreswan DB
if [ ! -f /etc/ipsec.d/cert8.db ] ; then if [ ! -f /etc/ipsec.d/cert8.db ] ; then
echo > /var/tmp/libreswan-nss-pwd echo > /var/tmp/libreswan-nss-pwd
/usr/bin/certutil -N -f /var/tmp/libreswan-nss-pwd -d /etc/ipsec.d /usr/bin/certutil -N -f /var/tmp/libreswan-nss-pwd -d /etc/ipsec.d
/bin/rm -f /var/tmp/libreswan-nss-pwd /bin/rm -f /var/tmp/libreswan-nss-pwd
fi fi
# Reload sysctl.conf settings # Reload sysctl.conf
/sbin/sysctl -p /sbin/sysctl -p
# Update attributes of various files # Update file attributes
/bin/chmod +x /etc/rc.local /bin/chmod +x /etc/rc.local
/bin/chmod +x /etc/network/if-pre-up.d/iptablesload /bin/chmod +x /etc/network/if-pre-up.d/iptablesload
/bin/chmod +x /etc/network/if-pre-up.d/ip6tablesload /bin/chmod +x /etc/network/if-pre-up.d/ip6tablesload

68
vpnsetup_centos.sh
View File

@ -1,8 +1,8 @@
#!/bin/sh #!/bin/sh
# #
# Script for automatic configuration of IPsec/L2TP VPN server on 64-bit CentOS/RHEL 6 & 7. # Script for automatic configuration of IPsec/L2TP VPN server on 64-bit CentOS/RHEL 6 & 7.
# Works on dedicated servers or any KVM- or XEN-based Virtual Private Server (VPS). # Works on dedicated servers or any KVM- or Xen-based Virtual Private Server (VPS).
# It can also be used as the Amazon EC2 "user-data" with the official CentOS 6 and 7 AMIs. # It can also be used as Amazon EC2 "user-data" with the official CentOS 6 & 7 AMIs.
# #
# DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! THIS IS MEANT TO BE RUN # DO NOT RUN THIS SCRIPT ON YOUR PC OR MAC! THIS IS MEANT TO BE RUN
# ON YOUR DEDICATED SERVER OR VPS! # ON YOUR DEDICATED SERVER OR VPS!
@ -17,13 +17,13 @@
# know how you have improved it! # know how you have improved it!
if [ "$(uname)" = "Darwin" ]; then if [ "$(uname)" = "Darwin" ]; then
echo 'DO NOT run this script on your Mac! It should only be run on a Dedicated Server / VPS' echo 'DO NOT run this script on your Mac! It should only be run on a dedicated server / VPS'
echo 'or a newly-created EC2 instance, after you have modified it to set the variables below.' echo 'or a newly-created EC2 instance, after you have modified it to set the variables below.'
exit 1 exit 1
fi fi
# Please define your own values for these variables # Please define your own values for these variables
# Escape *all* non-alphanumeric characters with a backslash (or 3 backslashes for \ and "). # Escape *all* non-alphanumeric characters with a backslash (3 backslashes for \ and ").
# Examples: \ --> \\\\, " --> \\\", ' --> \', $ --> \$, ` --> \`, [space] --> \[space] # Examples: \ --> \\\\, " --> \\\", ' --> \', $ --> \$, ` --> \`, [space] --> \[space]
IPSEC_PSK=your_very_secure_key IPSEC_PSK=your_very_secure_key
VPN_USER=your_username VPN_USER=your_username
@ -49,7 +49,7 @@ fi
if [ -f "/proc/user_beancounters" ]; then if [ -f "/proc/user_beancounters" ]; then
echo "This script does NOT support OpenVZ VPS." echo "This script does NOT support OpenVZ VPS."
echo "Try Nyr's OpenVPN script instead: https://github.com/Nyr/openvpn-install" echo "Try Nyr's OpenVPN script: https://github.com/Nyr/openvpn-install"
exit 1 exit 1
fi fi
@ -58,18 +58,16 @@ if [ "$(id -u)" != 0 ]; then
exit 1 exit 1
fi fi
# Make sure "eth0" is available
if [ ! -f /sys/class/net/eth0/operstate ]; then if [ ! -f /sys/class/net/eth0/operstate ]; then
echo "Network interface 'eth0' is not available. Aborting." echo "Network interface 'eth0' is not available. Aborting."
echo echo
echo "CentOS 7 users should change interfaces to use the old naming convention" echo "CentOS 7 users should change interfaces to use old naming convention"
echo "before running this script. See: https://wiki.centos.org/FAQ/CentOS7" echo "before running this script. See: https://wiki.centos.org/FAQ/CentOS7"
exit 1 exit 1
fi fi
# Check for empty VPN variables
if [ -z "$IPSEC_PSK" ] || [ -z "$VPN_USER" ] || [ -z "$VPN_PASSWORD" ]; then if [ -z "$IPSEC_PSK" ] || [ -z "$VPN_USER" ] || [ -z "$VPN_PASSWORD" ]; then
echo "The VPN credentials cannot be empty. Please re-edit the VPN script." echo "VPN credentials cannot be empty, please edit the VPN script."
exit 1 exit 1
fi fi
@ -105,11 +103,11 @@ PRIVATE_IP=$(wget --retry-connrefused -t 3 -T 15 -qO- 'http://169.254.169.254/la
# Check IPs for correct format # Check IPs for correct format
IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$" IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
if printf %s "$PUBLIC_IP" | grep -vEq "$IP_REGEX"; then if printf %s "$PUBLIC_IP" | grep -vEq "$IP_REGEX"; then
echo "Could not find valid Public IP, please edit the VPN script manually." echo "Cannot find valid Public IP, please edit the VPN script manually."
exit 1 exit 1
fi fi
if printf %s "$PRIVATE_IP" | grep -vEq "$IP_REGEX"; then if printf %s "$PRIVATE_IP" | grep -vEq "$IP_REGEX"; then
echo "Could not find valid Private IP, please edit the VPN script manually." echo "Cannot find valid Private IP, please edit the VPN script manually."
exit 1 exit 1
fi fi
@ -120,12 +118,9 @@ if grep -qs "release 6" /etc/redhat-release; then
elif grep -qs "release 7" /etc/redhat-release; then elif grep -qs "release 7" /etc/redhat-release; then
EPEL_RPM="epel-release-7-5.noarch.rpm" EPEL_RPM="epel-release-7-5.noarch.rpm"
EPEL_URL="http://download.fedoraproject.org/pub/epel/7/x86_64/e/$EPEL_RPM" EPEL_URL="http://download.fedoraproject.org/pub/epel/7/x86_64/e/$EPEL_RPM"
else
echo "Sorry, this script only supports versions 6 and 7 of CentOS/RHEL."
exit 1
fi fi
wget -t 3 -T 30 -nv -O "$EPEL_RPM" "$EPEL_URL" wget -t 3 -T 30 -nv -O "$EPEL_RPM" "$EPEL_URL"
[ ! -f "$EPEL_RPM" ] && { echo "Could not retrieve EPEL repository RPM file. Aborting."; exit 1; } [ ! -f "$EPEL_RPM" ] && { echo "Cannot retrieve EPEL repo RPM file. Aborting."; exit 1; }
rpm -ivh --force "$EPEL_RPM" && /bin/rm -f "$EPEL_RPM" rpm -ivh --force "$EPEL_RPM" && /bin/rm -f "$EPEL_RPM"
# Install necessary packages # Install necessary packages
@ -150,26 +145,27 @@ if grep -qs "release 6" /etc/redhat-release; then
RPM2="libevent2-devel-2.0.22-1.el6.x86_64.rpm" RPM2="libevent2-devel-2.0.22-1.el6.x86_64.rpm"
wget -t 3 -T 30 -nv -O "$RPM1" "$LE2_URL/$RPM1" wget -t 3 -T 30 -nv -O "$RPM1" "$LE2_URL/$RPM1"
wget -t 3 -T 30 -nv -O "$RPM2" "$LE2_URL/$RPM2" wget -t 3 -T 30 -nv -O "$RPM2" "$LE2_URL/$RPM2"
[ ! -f "$RPM1" ] || [ ! -f "$RPM2" ] && { echo "Could not retrieve Libevent2 RPM file(s). Aborting."; exit 1; } [ ! -f "$RPM1" ] || [ ! -f "$RPM2" ] && { echo "Cannot retrieve Libevent2 RPM file(s). Aborting."; exit 1; }
rpm -ivh --force "$RPM1" "$RPM2" && /bin/rm -f "$RPM1" "$RPM2" rpm -ivh --force "$RPM1" "$RPM2" && /bin/rm -f "$RPM1" "$RPM2"
elif grep -qs "release 7" /etc/redhat-release; then elif grep -qs "release 7" /etc/redhat-release; then
yum -y install libevent-devel yum -y install libevent-devel
fi fi
# Compile and install Libreswan (https://libreswan.org/) # Compile and install Libreswan
SWAN_VER=3.16 SWAN_VER=3.16
SWAN_FILE="libreswan-${SWAN_VER}.tar.gz" SWAN_FILE="libreswan-${SWAN_VER}.tar.gz"
SWAN_URL="https://download.libreswan.org/${SWAN_FILE}" SWAN_URL="https://download.libreswan.org/${SWAN_FILE}"
wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL" wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL"
[ ! -f "$SWAN_FILE" ] && { echo "Could not retrieve Libreswan source file. Aborting."; exit 1; } [ ! -f "$SWAN_FILE" ] && { echo "Cannot retrieve Libreswan source file. Aborting."; exit 1; }
/bin/rm -rf "/opt/src/libreswan-${SWAN_VER}" /bin/rm -rf "/opt/src/libreswan-${SWAN_VER}"
tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE" tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE"
cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source directory. Aborting."; exit 1; } cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source dir. Aborting."; exit 1; }
make programs && make install make programs && make install
# Prepare various config files # Prepare various config files
# Create Libreswan configuration # Create IPsec (Libreswan) configuration
/bin/cp -f /etc/ipsec.conf "/etc/ipsec.conf.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null SYS_DT="$(/bin/date +%Y-%m-%d-%H:%M:%S)"
/bin/cp -f /etc/ipsec.conf "/etc/ipsec.conf.old-${SYS_DT}" 2>/dev/null
cat > /etc/ipsec.conf <<EOF cat > /etc/ipsec.conf <<EOF
version 2.0 version 2.0
@ -208,13 +204,13 @@ conn vpnpsk
EOF EOF
# Specify IPsec PSK # Specify IPsec PSK
/bin/cp -f /etc/ipsec.secrets "/etc/ipsec.secrets.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ipsec.secrets "/etc/ipsec.secrets.old-${SYS_DT}" 2>/dev/null
cat > /etc/ipsec.secrets <<EOF cat > /etc/ipsec.secrets <<EOF
$PUBLIC_IP %any : PSK "$IPSEC_PSK" $PUBLIC_IP %any : PSK "$IPSEC_PSK"
EOF EOF
# Create xl2tpd config # Create xl2tpd config
/bin/cp -f /etc/xl2tpd/xl2tpd.conf "/etc/xl2tpd/xl2tpd.conf.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/xl2tpd/xl2tpd.conf "/etc/xl2tpd/xl2tpd.conf.old-${SYS_DT}" 2>/dev/null
cat > /etc/xl2tpd/xl2tpd.conf <<EOF cat > /etc/xl2tpd/xl2tpd.conf <<EOF
[global] [global]
port = 1701 port = 1701
@ -237,7 +233,7 @@ length bit = yes
EOF EOF
# Specify xl2tpd options # Specify xl2tpd options
/bin/cp -f /etc/ppp/options.xl2tpd "/etc/ppp/options.xl2tpd.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ppp/options.xl2tpd "/etc/ppp/options.xl2tpd.old-${SYS_DT}" 2>/dev/null
cat > /etc/ppp/options.xl2tpd <<EOF cat > /etc/ppp/options.xl2tpd <<EOF
ipcp-accept-local ipcp-accept-local
ipcp-accept-remote ipcp-accept-remote
@ -256,16 +252,16 @@ connect-delay 5000
EOF EOF
# Create VPN credentials # Create VPN credentials
/bin/cp -f /etc/ppp/chap-secrets "/etc/ppp/chap-secrets.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/ppp/chap-secrets "/etc/ppp/chap-secrets.old-${SYS_DT}" 2>/dev/null
cat > /etc/ppp/chap-secrets <<EOF cat > /etc/ppp/chap-secrets <<EOF
# Secrets for authentication using CHAP # Secrets for authentication using CHAP
# client server secret IP addresses # client server secret IP addresses
"$VPN_USER" l2tpd "$VPN_PASSWORD" * "$VPN_USER" l2tpd "$VPN_PASSWORD" *
EOF EOF
# Update sysctl settings for VPN and better performance # Update sysctl settings for VPN and performance
if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then
/bin/cp -f /etc/sysctl.conf "/etc/sysctl.conf.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/sysctl.conf "/etc/sysctl.conf.old-${SYS_DT}" 2>/dev/null
cat >> /etc/sysctl.conf <<EOF cat >> /etc/sysctl.conf <<EOF
# Added by hwdsl2 VPN script # Added by hwdsl2 VPN script
@ -303,11 +299,11 @@ net.ipv4.tcp_wmem = 10240 87380 12582912
EOF EOF
fi fi
# Create basic IPTables rules. First, check if there are existing IPTables rules loaded. # Create basic IPTables rules. First check if there are existing IPTables rules loaded.
# 1. If IPTables is "empty", write out the new set of rules below. # 1. If IPTables is "empty", write out the new set of rules below.
# 2. If *not* empty, insert new rules and save them together with existing ones. # 2. If *not* empty, insert new rules and save them together with existing ones.
if ! grep -qs "hwdsl2 VPN script" /etc/sysconfig/iptables; then if ! grep -qs "hwdsl2 VPN script" /etc/sysconfig/iptables; then
/bin/cp -f /etc/sysconfig/iptables "/etc/sysconfig/iptables.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/sysconfig/iptables "/etc/sysconfig/iptables.old-${SYS_DT}" 2>/dev/null
/sbin/service fail2ban stop >/dev/null 2>&1 /sbin/service fail2ban stop >/dev/null 2>&1
if [ "$(/sbin/iptables-save | grep -c '^\-')" = "0" ]; then if [ "$(/sbin/iptables-save | grep -c '^\-')" = "0" ]; then
cat > /etc/sysconfig/iptables <<EOF cat > /etc/sysconfig/iptables <<EOF
@ -367,9 +363,9 @@ echo "# Modified by hwdsl2 VPN script" > /etc/sysconfig/iptables
fi fi
fi fi
# Create basic IP6Tables rules # Create basic IP6Tables (IPv6) rules
if ! grep -qs "hwdsl2 VPN script" /etc/sysconfig/ip6tables; then if ! grep -qs "hwdsl2 VPN script" /etc/sysconfig/ip6tables; then
/bin/cp -f /etc/sysconfig/ip6tables "/etc/sysconfig/ip6tables.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/sysconfig/ip6tables "/etc/sysconfig/ip6tables.old-${SYS_DT}" 2>/dev/null
cat > /etc/sysconfig/ip6tables <<EOF cat > /etc/sysconfig/ip6tables <<EOF
# Added by hwdsl2 VPN script # Added by hwdsl2 VPN script
*filter *filter
@ -404,9 +400,9 @@ logpath = /var/log/secure
EOF EOF
fi fi
# Update rc.local to start services at system boot # Update rc.local to start services at boot
if ! grep -qs "hwdsl2 VPN script" /etc/rc.local; then if ! grep -qs "hwdsl2 VPN script" /etc/rc.local; then
/bin/cp -f /etc/rc.local "/etc/rc.local.old-$(date +%Y-%m-%d-%H:%M:%S)" 2>/dev/null /bin/cp -f /etc/rc.local "/etc/rc.local.old-${SYS_DT}" 2>/dev/null
cat >> /etc/rc.local <<EOF cat >> /etc/rc.local <<EOF
# Added by hwdsl2 VPN script # Added by hwdsl2 VPN script
@ -419,7 +415,7 @@ echo 1 > /proc/sys/net/ipv4/ip_forward
EOF EOF
fi fi
# Initialize Libreswan database # Initialize Libreswan DB
if [ ! -f /etc/ipsec.d/cert8.db ] ; then if [ ! -f /etc/ipsec.d/cert8.db ] ; then
echo > /var/tmp/libreswan-nss-pwd echo > /var/tmp/libreswan-nss-pwd
/usr/bin/certutil -N -f /var/tmp/libreswan-nss-pwd -d /etc/ipsec.d /usr/bin/certutil -N -f /var/tmp/libreswan-nss-pwd -d /etc/ipsec.d
@ -431,10 +427,10 @@ restorecon /etc/ipsec.d/*db 2>/dev/null
restorecon /usr/local/sbin -Rv 2>/dev/null restorecon /usr/local/sbin -Rv 2>/dev/null
restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null restorecon /usr/local/libexec/ipsec -Rv 2>/dev/null
# Reload sysctl.conf settings # Reload sysctl.conf
/sbin/sysctl -p /sbin/sysctl -p
# Update attributes of various files # Update file attributes
/bin/chmod +x /etc/rc.local /bin/chmod +x /etc/rc.local
/bin/chmod 600 /etc/ipsec.secrets* /etc/ppp/chap-secrets* /bin/chmod 600 /etc/ipsec.secrets* /etc/ppp/chap-secrets*

6
vpnupgrade_Libreswan.sh
View File

@ -97,14 +97,14 @@ apt-get -y install libnss3-dev libnspr4-dev pkg-config libpam0g-dev \
apt-get -y --no-install-recommends install xmlto apt-get -y --no-install-recommends install xmlto
apt-get -y install xl2tpd apt-get -y install xl2tpd
# Compile and install Libreswan (https://libreswan.org/) # Compile and install Libreswan
SWAN_FILE="libreswan-${SWAN_VER}.tar.gz" SWAN_FILE="libreswan-${SWAN_VER}.tar.gz"
SWAN_URL="https://download.libreswan.org/${SWAN_FILE}" SWAN_URL="https://download.libreswan.org/${SWAN_FILE}"
wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL" wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL"
[ ! -f "$SWAN_FILE" ] && { echo "Could not retrieve Libreswan source file. Aborting."; exit 1; } [ ! -f "$SWAN_FILE" ] && { echo "Cannot retrieve Libreswan source file. Aborting."; exit 1; }
/bin/rm -rf "/opt/src/libreswan-${SWAN_VER}" /bin/rm -rf "/opt/src/libreswan-${SWAN_VER}"
tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE" tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE"
cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source directory. Aborting."; exit 1; } cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source dir. Aborting."; exit 1; }
make programs && make install make programs && make install
# Restart services # Restart services

13
vpnupgrade_Libreswan_centos.sh
View File

@ -97,12 +97,9 @@ if grep -qs "release 6" /etc/redhat-release; then
elif grep -qs "release 7" /etc/redhat-release; then elif grep -qs "release 7" /etc/redhat-release; then
EPEL_RPM="epel-release-7-5.noarch.rpm" EPEL_RPM="epel-release-7-5.noarch.rpm"
EPEL_URL="http://download.fedoraproject.org/pub/epel/7/x86_64/e/$EPEL_RPM" EPEL_URL="http://download.fedoraproject.org/pub/epel/7/x86_64/e/$EPEL_RPM"
else
echo "Sorry, this script only supports versions 6 and 7 of CentOS/RHEL."
exit 1
fi fi
wget -t 3 -T 30 -nv -O "$EPEL_RPM" "$EPEL_URL" wget -t 3 -T 30 -nv -O "$EPEL_RPM" "$EPEL_URL"
[ ! -f "$EPEL_RPM" ] && { echo "Could not retrieve EPEL repository RPM file. Aborting."; exit 1; } [ ! -f "$EPEL_RPM" ] && { echo "Cannot retrieve EPEL repo RPM file. Aborting."; exit 1; }
rpm -ivh --force "$EPEL_RPM" && /bin/rm -f "$EPEL_RPM" rpm -ivh --force "$EPEL_RPM" && /bin/rm -f "$EPEL_RPM"
# Install necessary packages # Install necessary packages
@ -119,20 +116,20 @@ if grep -qs "release 6" /etc/redhat-release; then
RPM2="libevent2-devel-2.0.22-1.el6.x86_64.rpm" RPM2="libevent2-devel-2.0.22-1.el6.x86_64.rpm"
wget -t 3 -T 30 -nv -O "$RPM1" "$LE2_URL/$RPM1" wget -t 3 -T 30 -nv -O "$RPM1" "$LE2_URL/$RPM1"
wget -t 3 -T 30 -nv -O "$RPM2" "$LE2_URL/$RPM2" wget -t 3 -T 30 -nv -O "$RPM2" "$LE2_URL/$RPM2"
[ ! -f "$RPM1" ] || [ ! -f "$RPM2" ] && { echo "Could not retrieve Libevent2 RPM file(s). Aborting."; exit 1; } [ ! -f "$RPM1" ] || [ ! -f "$RPM2" ] && { echo "Cannot retrieve Libevent2 RPM file(s). Aborting."; exit 1; }
rpm -ivh --force "$RPM1" "$RPM2" && /bin/rm -f "$RPM1" "$RPM2" rpm -ivh --force "$RPM1" "$RPM2" && /bin/rm -f "$RPM1" "$RPM2"
elif grep -qs "release 7" /etc/redhat-release; then elif grep -qs "release 7" /etc/redhat-release; then
yum -y install libevent-devel yum -y install libevent-devel
fi fi
# Compile and install Libreswan (https://libreswan.org/) # Compile and install Libreswan
SWAN_FILE="libreswan-${SWAN_VER}.tar.gz" SWAN_FILE="libreswan-${SWAN_VER}.tar.gz"
SWAN_URL="https://download.libreswan.org/${SWAN_FILE}" SWAN_URL="https://download.libreswan.org/${SWAN_FILE}"
wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL" wget -t 3 -T 30 -nv -O "$SWAN_FILE" "$SWAN_URL"
[ ! -f "$SWAN_FILE" ] && { echo "Could not retrieve Libreswan source file. Aborting."; exit 1; } [ ! -f "$SWAN_FILE" ] && { echo "Cannot retrieve Libreswan source file. Aborting."; exit 1; }
/bin/rm -rf "/opt/src/libreswan-${SWAN_VER}" /bin/rm -rf "/opt/src/libreswan-${SWAN_VER}"
tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE" tar xvzf "$SWAN_FILE" && rm -f "$SWAN_FILE"
cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source directory. Aborting."; exit 1; } cd "libreswan-${SWAN_VER}" || { echo "Failed to enter Libreswan source dir. Aborting."; exit 1; }
make programs && make install make programs && make install
# Restore SELinux contexts # Restore SELinux contexts