Improve customization
- Use variables for easier customization of VPN subnets and DNS - Other minor improvements
This commit is contained in:
parent
03007079e6
commit
08e08c6924
77
vpnsetup.sh
77
vpnsetup.sh
@ -39,7 +39,7 @@ SYS_DT="$(date +%Y-%m-%d-%H:%M:%S)"; export SYS_DT
|
||||
exiterr() { echo "Error: $1" >&2; exit 1; }
|
||||
exiterr2() { echo "Error: 'apt-get install' failed." >&2; exit 1; }
|
||||
conf_bk() { /bin/cp -f "$1" "$1.old-$SYS_DT" 2>/dev/null; }
|
||||
print_status() { echo; echo "## $1"; echo; }
|
||||
bigecho() { echo; echo "## $1"; echo; }
|
||||
|
||||
check_ip() {
|
||||
IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
|
||||
@ -66,7 +66,6 @@ fi
|
||||
|
||||
NET_IF0=${VPN_IFACE:-'eth0'}
|
||||
NET_IFS=${VPN_IFACE:-'eth+'}
|
||||
|
||||
if_state=$(cat "/sys/class/net/$NET_IF0/operstate" 2>/dev/null)
|
||||
if [ -z "$if_state" ] || [ "$if_state" = "down" ] || [ "$NET_IF0" = "lo" ]; then
|
||||
echo "Error: Network interface '$NET_IF0' is not available." >&2
|
||||
@ -89,7 +88,7 @@ fi
|
||||
[ -n "$YOUR_PASSWORD" ] && VPN_PASSWORD="$YOUR_PASSWORD"
|
||||
|
||||
if [ -z "$VPN_IPSEC_PSK" ] && [ -z "$VPN_USER" ] && [ -z "$VPN_PASSWORD" ]; then
|
||||
print_status "VPN credentials not set by user. Generating random PSK and password..."
|
||||
bigecho "VPN credentials not set by user. Generating random PSK and password..."
|
||||
VPN_IPSEC_PSK="$(LC_CTYPE=C tr -dc 'A-HJ-NPR-Za-km-z2-9' < /dev/urandom | head -c 16)"
|
||||
VPN_USER=vpnuser
|
||||
VPN_PASSWORD="$(LC_CTYPE=C tr -dc 'A-HJ-NPR-Za-km-z2-9' < /dev/urandom | head -c 16)"
|
||||
@ -117,30 +116,30 @@ EOF
|
||||
sleep 30
|
||||
fi
|
||||
|
||||
print_status "VPN setup in progress... Please be patient."
|
||||
bigecho "VPN setup in progress... Please be patient."
|
||||
|
||||
# Create and change to working dir
|
||||
mkdir -p /opt/src
|
||||
cd /opt/src || exiterr "Cannot enter /opt/src."
|
||||
|
||||
print_status "Populating apt-get cache..."
|
||||
bigecho "Populating apt-get cache..."
|
||||
|
||||
export DEBIAN_FRONTEND=noninteractive
|
||||
apt-get -yq update || exiterr "'apt-get update' failed."
|
||||
|
||||
print_status "Installing packages required for setup..."
|
||||
bigecho "Installing packages required for setup..."
|
||||
|
||||
apt-get -yq install wget dnsutils openssl || exiterr2
|
||||
apt-get -yq install iproute gawk grep sed net-tools || exiterr2
|
||||
|
||||
print_status "Trying to auto discover IP of this server..."
|
||||
bigecho "Trying to auto discover IP of this server..."
|
||||
|
||||
cat <<'EOF'
|
||||
In case the script hangs here for more than a few minutes,
|
||||
use Ctrl-C to interrupt. Then edit it and manually enter IP.
|
||||
EOF
|
||||
|
||||
# In case auto IP discovery fails, enter this server's public IP here.
|
||||
# In case auto IP discovery fails, enter server's public IP here.
|
||||
PUBLIC_IP=${VPN_PUBLIC_IP:-''}
|
||||
|
||||
# Try to auto discover IP of this server
|
||||
@ -150,7 +149,7 @@ PUBLIC_IP=${VPN_PUBLIC_IP:-''}
|
||||
check_ip "$PUBLIC_IP" || PUBLIC_IP=$(wget -t 3 -T 15 -qO- http://ipv4.icanhazip.com)
|
||||
check_ip "$PUBLIC_IP" || exiterr "Cannot find valid public IP. Edit the script and manually enter it."
|
||||
|
||||
print_status "Installing packages required for the VPN..."
|
||||
bigecho "Installing packages required for the VPN..."
|
||||
|
||||
apt-get -yq install libnss3-dev libnspr4-dev pkg-config libpam0g-dev \
|
||||
libcap-ng-dev libcap-ng-utils libselinux1-dev \
|
||||
@ -159,11 +158,11 @@ apt-get -yq install libnss3-dev libnspr4-dev pkg-config libpam0g-dev \
|
||||
apt-get -yq --no-install-recommends install xmlto || exiterr2
|
||||
apt-get -yq install ppp xl2tpd || exiterr2
|
||||
|
||||
print_status "Installing Fail2Ban to protect SSH..."
|
||||
bigecho "Installing Fail2Ban to protect SSH..."
|
||||
|
||||
apt-get -yq install fail2ban || exiterr2
|
||||
|
||||
print_status "Compiling and installing Libreswan..."
|
||||
bigecho "Compiling and installing Libreswan..."
|
||||
|
||||
swan_ver=3.19
|
||||
swan_file="libreswan-$swan_ver.tar.gz"
|
||||
@ -188,7 +187,15 @@ if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qs -F "$swan_ver"; then
|
||||
exiterr "Libreswan $swan_ver failed to build."
|
||||
fi
|
||||
|
||||
print_status "Creating VPN configuration..."
|
||||
bigecho "Creating VPN configuration..."
|
||||
|
||||
L2TP_NET=${VPN_L2TP_NET:-'192.168.42.0/24'}
|
||||
L2TP_LOCAL=${VPN_L2TP_LOCAL:-'192.168.42.1'}
|
||||
L2TP_POOL=${VPN_L2TP_POOL:-'192.168.42.10-192.168.42.250'}
|
||||
XAUTH_NET=${VPN_XAUTH_NET:-'192.168.43.0/24'}
|
||||
XAUTH_POOL=${VPN_XAUTH_POOL:-'192.168.43.10-192.168.43.250'}
|
||||
DNS_SRV1=${VPN_DNS_SRV1:-'8.8.8.8'}
|
||||
DNS_SRV2=${VPN_DNS_SRV2:-'8.8.4.4'}
|
||||
|
||||
# Create IPsec (Libreswan) config
|
||||
conf_bk "/etc/ipsec.conf"
|
||||
@ -196,7 +203,7 @@ cat > /etc/ipsec.conf <<EOF
|
||||
version 2.0
|
||||
|
||||
config setup
|
||||
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:!192.168.42.0/23
|
||||
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:!$L2TP_NET,%v4:!$XAUTH_NET
|
||||
protostack=netkey
|
||||
nhelpers=0
|
||||
interfaces=%defaultroute
|
||||
@ -229,9 +236,9 @@ conn l2tp-psk
|
||||
conn xauth-psk
|
||||
auto=add
|
||||
leftsubnet=0.0.0.0/0
|
||||
rightaddresspool=192.168.43.10-192.168.43.250
|
||||
modecfgdns1=8.8.8.8
|
||||
modecfgdns2=8.8.4.4
|
||||
rightaddresspool=$XAUTH_POOL
|
||||
modecfgdns1=$DNS_SRV1
|
||||
modecfgdns2=$DNS_SRV2
|
||||
leftxauthserver=yes
|
||||
rightxauthclient=yes
|
||||
leftmodecfgserver=yes
|
||||
@ -252,13 +259,13 @@ EOF
|
||||
|
||||
# Create xl2tpd config
|
||||
conf_bk "/etc/xl2tpd/xl2tpd.conf"
|
||||
cat > /etc/xl2tpd/xl2tpd.conf <<'EOF'
|
||||
cat > /etc/xl2tpd/xl2tpd.conf <<EOF
|
||||
[global]
|
||||
port = 1701
|
||||
|
||||
[lns default]
|
||||
ip range = 192.168.42.10-192.168.42.250
|
||||
local ip = 192.168.42.1
|
||||
ip range = $L2TP_POOL
|
||||
local ip = $L2TP_LOCAL
|
||||
require chap = yes
|
||||
refuse pap = yes
|
||||
require authentication = yes
|
||||
@ -269,11 +276,11 @@ EOF
|
||||
|
||||
# Set xl2tpd options
|
||||
conf_bk "/etc/ppp/options.xl2tpd"
|
||||
cat > /etc/ppp/options.xl2tpd <<'EOF'
|
||||
cat > /etc/ppp/options.xl2tpd <<EOF
|
||||
ipcp-accept-local
|
||||
ipcp-accept-remote
|
||||
ms-dns 8.8.8.8
|
||||
ms-dns 8.8.4.4
|
||||
ms-dns $DNS_SRV1
|
||||
ms-dns $DNS_SRV2
|
||||
noccp
|
||||
auth
|
||||
mtu 1280
|
||||
@ -298,7 +305,7 @@ cat > /etc/ipsec.d/passwd <<EOF
|
||||
$VPN_USER:$VPN_PASSWORD_ENC:xauth-psk
|
||||
EOF
|
||||
|
||||
print_status "Updating sysctl settings..."
|
||||
bigecho "Updating sysctl settings..."
|
||||
|
||||
if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then
|
||||
conf_bk "/etc/sysctl.conf"
|
||||
@ -334,14 +341,14 @@ net.ipv4.tcp_wmem = 10240 87380 12582912
|
||||
EOF
|
||||
fi
|
||||
|
||||
print_status "Updating IPTables rules..."
|
||||
bigecho "Updating IPTables rules..."
|
||||
|
||||
# Check if IPTables rules need updating
|
||||
ipt_flag=0
|
||||
IPT_FILE="/etc/iptables.rules"
|
||||
if ! grep -qs "hwdsl2 VPN script" "$IPT_FILE" \
|
||||
|| ! iptables -t nat -C POSTROUTING -s 192.168.42.0/24 -o "$NET_IFS" -j MASQUERADE 2>/dev/null \
|
||||
|| ! iptables -t nat -C POSTROUTING -s 192.168.43.0/24 -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE 2>/dev/null; then
|
||||
|| ! iptables -t nat -C POSTROUTING -s "$L2TP_NET" -o "$NET_IFS" -j MASQUERADE 2>/dev/null \
|
||||
|| ! iptables -t nat -C POSTROUTING -s "$XAUTH_NET" -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE 2>/dev/null; then
|
||||
ipt_flag=1
|
||||
fi
|
||||
|
||||
@ -357,15 +364,15 @@ if [ "$ipt_flag" = "1" ]; then
|
||||
iptables -I FORWARD 1 -m conntrack --ctstate INVALID -j DROP
|
||||
iptables -I FORWARD 2 -i "$NET_IFS" -o ppp+ -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
iptables -I FORWARD 3 -i ppp+ -o "$NET_IFS" -j ACCEPT
|
||||
iptables -I FORWARD 4 -i ppp+ -o ppp+ -s 192.168.42.0/24 -d 192.168.42.0/24 -j ACCEPT
|
||||
iptables -I FORWARD 5 -i "$NET_IFS" -d 192.168.43.0/24 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
iptables -I FORWARD 6 -s 192.168.43.0/24 -o "$NET_IFS" -j ACCEPT
|
||||
iptables -I FORWARD 4 -i ppp+ -o ppp+ -s "$L2TP_NET" -d "$L2TP_NET" -j ACCEPT
|
||||
iptables -I FORWARD 5 -i "$NET_IFS" -d "$XAUTH_NET" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
iptables -I FORWARD 6 -s "$XAUTH_NET" -o "$NET_IFS" -j ACCEPT
|
||||
# Uncomment if you wish to disallow traffic between VPN clients themselves
|
||||
# iptables -I FORWARD 2 -i ppp+ -o ppp+ -s 192.168.42.0/24 -d 192.168.42.0/24 -j DROP
|
||||
# iptables -I FORWARD 3 -s 192.168.43.0/24 -d 192.168.43.0/24 -j DROP
|
||||
# iptables -I FORWARD 2 -i ppp+ -o ppp+ -s "$L2TP_NET" -d "$L2TP_NET" -j DROP
|
||||
# iptables -I FORWARD 3 -s "$XAUTH_NET" -d "$XAUTH_NET" -j DROP
|
||||
iptables -A FORWARD -j DROP
|
||||
iptables -t nat -I POSTROUTING -s 192.168.43.0/24 -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE
|
||||
iptables -t nat -I POSTROUTING -s 192.168.42.0/24 -o "$NET_IFS" -j MASQUERADE
|
||||
iptables -t nat -I POSTROUTING -s "$XAUTH_NET" -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE
|
||||
iptables -t nat -I POSTROUTING -s "$L2TP_NET" -o "$NET_IFS" -j MASQUERADE
|
||||
echo "# Modified by hwdsl2 VPN script" > "$IPT_FILE"
|
||||
iptables-save >> "$IPT_FILE"
|
||||
|
||||
@ -377,7 +384,7 @@ if [ "$ipt_flag" = "1" ]; then
|
||||
fi
|
||||
fi
|
||||
|
||||
print_status "Enabling services on boot..."
|
||||
bigecho "Enabling services on boot..."
|
||||
|
||||
mkdir -p /etc/network/if-pre-up.d
|
||||
cat > /etc/network/if-pre-up.d/iptablesload <<'EOF'
|
||||
@ -410,7 +417,7 @@ EOF
|
||||
fi
|
||||
fi
|
||||
|
||||
print_status "Starting services..."
|
||||
bigecho "Starting services..."
|
||||
|
||||
# Reload sysctl.conf
|
||||
sysctl -e -q -p
|
||||
|
@ -39,7 +39,7 @@ SYS_DT="$(date +%Y-%m-%d-%H:%M:%S)"; export SYS_DT
|
||||
exiterr() { echo "Error: $1" >&2; exit 1; }
|
||||
exiterr2() { echo "Error: 'yum install' failed." >&2; exit 1; }
|
||||
conf_bk() { /bin/cp -f "$1" "$1.old-$SYS_DT" 2>/dev/null; }
|
||||
print_status() { echo; echo "## $1"; echo; }
|
||||
bigecho() { echo; echo "## $1"; echo; }
|
||||
|
||||
check_ip() {
|
||||
IP_REGEX="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
|
||||
@ -62,7 +62,6 @@ fi
|
||||
|
||||
NET_IF0=${VPN_IFACE:-'eth0'}
|
||||
NET_IFS=${VPN_IFACE:-'eth+'}
|
||||
|
||||
if_state=$(cat "/sys/class/net/$NET_IF0/operstate" 2>/dev/null)
|
||||
if [ -z "$if_state" ] || [ "$if_state" = "down" ] || [ "$NET_IF0" = "lo" ]; then
|
||||
echo "Error: Network interface '$NET_IF0' is not available." >&2
|
||||
@ -85,7 +84,7 @@ fi
|
||||
[ -n "$YOUR_PASSWORD" ] && VPN_PASSWORD="$YOUR_PASSWORD"
|
||||
|
||||
if [ -z "$VPN_IPSEC_PSK" ] && [ -z "$VPN_USER" ] && [ -z "$VPN_PASSWORD" ]; then
|
||||
print_status "VPN credentials not set by user. Generating random PSK and password..."
|
||||
bigecho "VPN credentials not set by user. Generating random PSK and password..."
|
||||
VPN_IPSEC_PSK="$(LC_CTYPE=C tr -dc 'A-HJ-NPR-Za-km-z2-9' < /dev/urandom | head -c 16)"
|
||||
VPN_USER=vpnuser
|
||||
VPN_PASSWORD="$(LC_CTYPE=C tr -dc 'A-HJ-NPR-Za-km-z2-9' < /dev/urandom | head -c 16)"
|
||||
@ -101,25 +100,25 @@ case "$VPN_IPSEC_PSK $VPN_USER $VPN_PASSWORD" in
|
||||
;;
|
||||
esac
|
||||
|
||||
print_status "VPN setup in progress... Please be patient."
|
||||
bigecho "VPN setup in progress... Please be patient."
|
||||
|
||||
# Create and change to working dir
|
||||
mkdir -p /opt/src
|
||||
cd /opt/src || exiterr "Cannot enter /opt/src."
|
||||
|
||||
print_status "Installing packages required for setup..."
|
||||
bigecho "Installing packages required for setup..."
|
||||
|
||||
yum -y install wget bind-utils openssl || exiterr2
|
||||
yum -y install iproute gawk grep sed net-tools || exiterr2
|
||||
|
||||
print_status "Trying to auto discover IP of this server..."
|
||||
bigecho "Trying to auto discover IP of this server..."
|
||||
|
||||
cat <<'EOF'
|
||||
In case the script hangs here for more than a few minutes,
|
||||
use Ctrl-C to interrupt. Then edit it and manually enter IP.
|
||||
EOF
|
||||
|
||||
# In case auto IP discovery fails, enter this server's public IP here.
|
||||
# In case auto IP discovery fails, enter server's public IP here.
|
||||
PUBLIC_IP=${VPN_PUBLIC_IP:-''}
|
||||
|
||||
# Try to auto discover IP of this server
|
||||
@ -129,11 +128,11 @@ PUBLIC_IP=${VPN_PUBLIC_IP:-''}
|
||||
check_ip "$PUBLIC_IP" || PUBLIC_IP=$(wget -t 3 -T 15 -qO- http://ipv4.icanhazip.com)
|
||||
check_ip "$PUBLIC_IP" || exiterr "Cannot find valid public IP. Edit the script and manually enter it."
|
||||
|
||||
print_status "Adding the EPEL repository..."
|
||||
bigecho "Adding the EPEL repository..."
|
||||
|
||||
yum -y install epel-release || exiterr2
|
||||
|
||||
print_status "Installing packages required for the VPN..."
|
||||
bigecho "Installing packages required for the VPN..."
|
||||
|
||||
yum -y install nss-devel nspr-devel pkgconfig pam-devel \
|
||||
libcap-ng-devel libselinux-devel \
|
||||
@ -149,11 +148,11 @@ else
|
||||
yum -y install iptables-services || exiterr2
|
||||
fi
|
||||
|
||||
print_status "Installing Fail2Ban to protect SSH..."
|
||||
bigecho "Installing Fail2Ban to protect SSH..."
|
||||
|
||||
yum -y install fail2ban || exiterr2
|
||||
|
||||
print_status "Compiling and installing Libreswan..."
|
||||
bigecho "Compiling and installing Libreswan..."
|
||||
|
||||
swan_ver=3.19
|
||||
swan_file="libreswan-$swan_ver.tar.gz"
|
||||
@ -175,7 +174,15 @@ if ! /usr/local/sbin/ipsec --version 2>/dev/null | grep -qs -F "$swan_ver"; then
|
||||
exiterr "Libreswan $swan_ver failed to build."
|
||||
fi
|
||||
|
||||
print_status "Creating VPN configuration..."
|
||||
bigecho "Creating VPN configuration..."
|
||||
|
||||
L2TP_NET=${VPN_L2TP_NET:-'192.168.42.0/24'}
|
||||
L2TP_LOCAL=${VPN_L2TP_LOCAL:-'192.168.42.1'}
|
||||
L2TP_POOL=${VPN_L2TP_POOL:-'192.168.42.10-192.168.42.250'}
|
||||
XAUTH_NET=${VPN_XAUTH_NET:-'192.168.43.0/24'}
|
||||
XAUTH_POOL=${VPN_XAUTH_POOL:-'192.168.43.10-192.168.43.250'}
|
||||
DNS_SRV1=${VPN_DNS_SRV1:-'8.8.8.8'}
|
||||
DNS_SRV2=${VPN_DNS_SRV2:-'8.8.4.4'}
|
||||
|
||||
# Create IPsec (Libreswan) config
|
||||
conf_bk "/etc/ipsec.conf"
|
||||
@ -183,7 +190,7 @@ cat > /etc/ipsec.conf <<EOF
|
||||
version 2.0
|
||||
|
||||
config setup
|
||||
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:!192.168.42.0/23
|
||||
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:!$L2TP_NET,%v4:!$XAUTH_NET
|
||||
protostack=netkey
|
||||
nhelpers=0
|
||||
interfaces=%defaultroute
|
||||
@ -216,9 +223,9 @@ conn l2tp-psk
|
||||
conn xauth-psk
|
||||
auto=add
|
||||
leftsubnet=0.0.0.0/0
|
||||
rightaddresspool=192.168.43.10-192.168.43.250
|
||||
modecfgdns1=8.8.8.8
|
||||
modecfgdns2=8.8.4.4
|
||||
rightaddresspool=$XAUTH_POOL
|
||||
modecfgdns1=$DNS_SRV1
|
||||
modecfgdns2=$DNS_SRV2
|
||||
leftxauthserver=yes
|
||||
rightxauthclient=yes
|
||||
leftmodecfgserver=yes
|
||||
@ -239,13 +246,13 @@ EOF
|
||||
|
||||
# Create xl2tpd config
|
||||
conf_bk "/etc/xl2tpd/xl2tpd.conf"
|
||||
cat > /etc/xl2tpd/xl2tpd.conf <<'EOF'
|
||||
cat > /etc/xl2tpd/xl2tpd.conf <<EOF
|
||||
[global]
|
||||
port = 1701
|
||||
|
||||
[lns default]
|
||||
ip range = 192.168.42.10-192.168.42.250
|
||||
local ip = 192.168.42.1
|
||||
ip range = $L2TP_POOL
|
||||
local ip = $L2TP_LOCAL
|
||||
require chap = yes
|
||||
refuse pap = yes
|
||||
require authentication = yes
|
||||
@ -256,11 +263,11 @@ EOF
|
||||
|
||||
# Set xl2tpd options
|
||||
conf_bk "/etc/ppp/options.xl2tpd"
|
||||
cat > /etc/ppp/options.xl2tpd <<'EOF'
|
||||
cat > /etc/ppp/options.xl2tpd <<EOF
|
||||
ipcp-accept-local
|
||||
ipcp-accept-remote
|
||||
ms-dns 8.8.8.8
|
||||
ms-dns 8.8.4.4
|
||||
ms-dns $DNS_SRV1
|
||||
ms-dns $DNS_SRV2
|
||||
noccp
|
||||
auth
|
||||
mtu 1280
|
||||
@ -285,7 +292,7 @@ cat > /etc/ipsec.d/passwd <<EOF
|
||||
$VPN_USER:$VPN_PASSWORD_ENC:xauth-psk
|
||||
EOF
|
||||
|
||||
print_status "Updating sysctl settings..."
|
||||
bigecho "Updating sysctl settings..."
|
||||
|
||||
if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then
|
||||
conf_bk "/etc/sysctl.conf"
|
||||
@ -321,14 +328,14 @@ net.ipv4.tcp_wmem = 10240 87380 12582912
|
||||
EOF
|
||||
fi
|
||||
|
||||
print_status "Updating IPTables rules..."
|
||||
bigecho "Updating IPTables rules..."
|
||||
|
||||
# Check if IPTables rules need updating
|
||||
ipt_flag=0
|
||||
IPT_FILE="/etc/sysconfig/iptables"
|
||||
if ! grep -qs "hwdsl2 VPN script" "$IPT_FILE" \
|
||||
|| ! iptables -t nat -C POSTROUTING -s 192.168.42.0/24 -o "$NET_IFS" -j MASQUERADE 2>/dev/null \
|
||||
|| ! iptables -t nat -C POSTROUTING -s 192.168.43.0/24 -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE 2>/dev/null; then
|
||||
|| ! iptables -t nat -C POSTROUTING -s "$L2TP_NET" -o "$NET_IFS" -j MASQUERADE 2>/dev/null \
|
||||
|| ! iptables -t nat -C POSTROUTING -s "$XAUTH_NET" -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE 2>/dev/null; then
|
||||
ipt_flag=1
|
||||
fi
|
||||
|
||||
@ -344,20 +351,20 @@ if [ "$ipt_flag" = "1" ]; then
|
||||
iptables -I FORWARD 1 -m conntrack --ctstate INVALID -j DROP
|
||||
iptables -I FORWARD 2 -i "$NET_IFS" -o ppp+ -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
iptables -I FORWARD 3 -i ppp+ -o "$NET_IFS" -j ACCEPT
|
||||
iptables -I FORWARD 4 -i ppp+ -o ppp+ -s 192.168.42.0/24 -d 192.168.42.0/24 -j ACCEPT
|
||||
iptables -I FORWARD 5 -i "$NET_IFS" -d 192.168.43.0/24 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
iptables -I FORWARD 6 -s 192.168.43.0/24 -o "$NET_IFS" -j ACCEPT
|
||||
iptables -I FORWARD 4 -i ppp+ -o ppp+ -s "$L2TP_NET" -d "$L2TP_NET" -j ACCEPT
|
||||
iptables -I FORWARD 5 -i "$NET_IFS" -d "$XAUTH_NET" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
iptables -I FORWARD 6 -s "$XAUTH_NET" -o "$NET_IFS" -j ACCEPT
|
||||
# Uncomment if you wish to disallow traffic between VPN clients themselves
|
||||
# iptables -I FORWARD 2 -i ppp+ -o ppp+ -s 192.168.42.0/24 -d 192.168.42.0/24 -j DROP
|
||||
# iptables -I FORWARD 3 -s 192.168.43.0/24 -d 192.168.43.0/24 -j DROP
|
||||
# iptables -I FORWARD 2 -i ppp+ -o ppp+ -s "$L2TP_NET" -d "$L2TP_NET" -j DROP
|
||||
# iptables -I FORWARD 3 -s "$XAUTH_NET" -d "$XAUTH_NET" -j DROP
|
||||
iptables -A FORWARD -j DROP
|
||||
iptables -t nat -I POSTROUTING -s 192.168.43.0/24 -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE
|
||||
iptables -t nat -I POSTROUTING -s 192.168.42.0/24 -o "$NET_IFS" -j MASQUERADE
|
||||
iptables -t nat -I POSTROUTING -s "$XAUTH_NET" -o "$NET_IFS" -m policy --dir out --pol none -j MASQUERADE
|
||||
iptables -t nat -I POSTROUTING -s "$L2TP_NET" -o "$NET_IFS" -j MASQUERADE
|
||||
echo "# Modified by hwdsl2 VPN script" > "$IPT_FILE"
|
||||
iptables-save >> "$IPT_FILE"
|
||||
fi
|
||||
|
||||
print_status "Creating basic Fail2Ban rules..."
|
||||
bigecho "Creating basic Fail2Ban rules..."
|
||||
|
||||
if [ ! -f /etc/fail2ban/jail.local ] ; then
|
||||
cat > /etc/fail2ban/jail.local <<'EOF'
|
||||
@ -369,7 +376,7 @@ logpath = /var/log/secure
|
||||
EOF
|
||||
fi
|
||||
|
||||
print_status "Enabling services on boot..."
|
||||
bigecho "Enabling services on boot..."
|
||||
|
||||
if grep -qs "release 6" /etc/redhat-release; then
|
||||
chkconfig iptables on
|
||||
@ -394,7 +401,7 @@ echo 1 > /proc/sys/net/ipv4/ip_forward
|
||||
EOF
|
||||
fi
|
||||
|
||||
print_status "Starting services..."
|
||||
bigecho "Starting services..."
|
||||
|
||||
# Restore SELinux contexts
|
||||
restorecon /etc/ipsec.d/*db 2>/dev/null
|
||||
|
Loading…
Reference in New Issue
Block a user