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Double BASH brackets to simple SH brackets

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This commit is contained in:
Julien Reichardt 2016-04-17 00:18:26 +02:00
parent 2bcb4681a1
commit 5684772d5e
1 changed files with 25 additions and 25 deletions
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36
openvpn-install.sh
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@ -8,13 +8,13 @@
# universal as possible. # universal as possible.
if [[ "$EUID" -ne 0 ]]; then if [ "$EUID" -ne 0 ]; then
echo "Sorry, you need to run this as root" echo "Sorry, you need to run this as root"
exit 1 exit 1
fi fi
if [[ ! -e /dev/net/tun ]]; then if [ ! -e /dev/net/tun ]; then
echo "TUN is not available" echo "TUN is not available"
exit 2 exit 2
fi fi
@ -25,10 +25,10 @@ if grep -qs "CentOS release 5" "/etc/redhat-release"; then
exit 3 exit 3
fi fi
if [[ -e /etc/debian_version ]]; then if [ -e /etc/debian_version ]; then
OS=debian OS=debian
RCLOCAL='/etc/rc.local' RCLOCAL='/etc/rc.local'
elif [[ -e /etc/centos-release || -e /etc/redhat-release ]]; then elif [ -e /etc/centos-release ] || [ -e /etc/redhat-release ]; then
OS=centos OS=centos
RCLOCAL='/etc/rc.d/rc.local' RCLOCAL='/etc/rc.d/rc.local'
# Needed for CentOS 7 # Needed for CentOS 7
@ -57,12 +57,12 @@ newclient () {
# I do this to make the script compatible with NATed servers (lowendspirit.com) # I do this to make the script compatible with NATed servers (lowendspirit.com)
# and to avoid getting an IPv6. # and to avoid getting an IPv6.
IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1) IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
if [[ "$IP" = "" ]]; then if [ "$IP" = "" ]; then
IP=$(wget -qO- ipv4.icanhazip.com) IP=$(wget -qO- ipv4.icanhazip.com)
fi fi
if [[ -e /etc/openvpn/server.conf ]]; then if [ -e /etc/openvpn/server.conf ]; then
while : while :
do do
clear clear
@ -92,7 +92,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
# This option could be documented a bit better and maybe even be simplimplified # This option could be documented a bit better and maybe even be simplimplified
# ...but what can I say, I want some sleep too # ...but what can I say, I want some sleep too
NUMBEROFCLIENTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c "^V") NUMBEROFCLIENTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c "^V")
if [[ "$NUMBEROFCLIENTS" = '0' ]]; then if [ "$NUMBEROFCLIENTS" = '0' ]; then
echo "" echo ""
echo "You have no existing clients!" echo "You have no existing clients!"
exit 5 exit 5
@ -100,7 +100,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
echo "" echo ""
echo "Select the existing client certificate you want to revoke" echo "Select the existing client certificate you want to revoke"
tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') ' tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
if [[ "$NUMBEROFCLIENTS" = '1' ]]; then if [ "$NUMBEROFCLIENTS" = '1' ]; then
read -p "Select one client [1]: " CLIENTNUMBER read -p "Select one client [1]: " CLIENTNUMBER
else else
read -p "Select one client [1-$NUMBEROFCLIENTS]: " CLIENTNUMBER read -p "Select one client [1-$NUMBEROFCLIENTS]: " CLIENTNUMBER
@ -121,7 +121,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
3) 3)
echo "" echo ""
read -p "Do you really want to remove OpenVPN? [y/n]: " -e -i n REMOVE read -p "Do you really want to remove OpenVPN? [y/n]: " -e -i n REMOVE
if [[ "$REMOVE" = 'y' ]]; then if [ "$REMOVE" = 'y' ]; then
PORT=$(grep '^port ' /etc/openvpn/server.conf | cut -d " " -f 2) PORT=$(grep '^port ' /etc/openvpn/server.conf | cut -d " " -f 2)
if pgrep firewalld; then if pgrep firewalld; then
# Using both permanent and not permanent rules to avoid a firewalld reload. # Using both permanent and not permanent rules to avoid a firewalld reload.
@ -138,12 +138,12 @@ if [[ -e /etc/openvpn/server.conf ]]; then
sed -i '/iptables -t nat -A POSTROUTING -s 10.8.0.0\/24 -j SNAT --to /d' $RCLOCAL sed -i '/iptables -t nat -A POSTROUTING -s 10.8.0.0\/24 -j SNAT --to /d' $RCLOCAL
if hash sestatus 2>/dev/null; then if hash sestatus 2>/dev/null; then
if sestatus | grep "Current mode" | grep -qs "enforcing"; then if sestatus | grep "Current mode" | grep -qs "enforcing"; then
if [[ "$PORT" != '1194' ]]; then if [ "$PORT" != '1194' ]; then
semanage port -d -t openvpn_port_t -p udp $PORT semanage port -d -t openvpn_port_t -p udp $PORT
fi fi
fi fi
fi fi
if [[ "$OS" = 'debian' ]]; then if [ "$OS" = 'debian' ]; then
apt-get remove --purge -y openvpn openvpn-blacklist apt-get remove --purge -y openvpn openvpn-blacklist
else else
yum remove openvpn -y yum remove openvpn -y
@ -191,7 +191,7 @@ else
echo "" echo ""
echo "Okay, that was all I needed. We are ready to setup your OpenVPN server now" echo "Okay, that was all I needed. We are ready to setup your OpenVPN server now"
read -n1 -r -p "Press any key to continue..." read -n1 -r -p "Press any key to continue..."
if [[ "$OS" = 'debian' ]]; then if [ "$OS" = 'debian' ]; then
apt-get update apt-get update
apt-get install openvpn iptables openssl ca-certificates -y apt-get install openvpn iptables openssl ca-certificates -y
else else
@ -200,7 +200,7 @@ else
yum install openvpn iptables openssl wget ca-certificates -y yum install openvpn iptables openssl wget ca-certificates -y
fi fi
# An old version of easy-rsa was available by default in some openvpn packages # An old version of easy-rsa was available by default in some openvpn packages
if [[ -d /etc/openvpn/easy-rsa/ ]]; then if [ -d /etc/openvpn/easy-rsa/ ]; then
rm -rf /etc/openvpn/easy-rsa/ rm -rf /etc/openvpn/easy-rsa/
fi fi
# Get easy-rsa # Get easy-rsa
@ -270,7 +270,7 @@ status openvpn-status.log
verb 3 verb 3
crl-verify crl.pem" >> /etc/openvpn/server.conf crl-verify crl.pem" >> /etc/openvpn/server.conf
# Enable net.ipv4.ip_forward for the system # Enable net.ipv4.ip_forward for the system
if [[ "$OS" = 'debian' ]]; then if [ "$OS" = 'debian' ]; then
sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|' /etc/sysctl.conf sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|' /etc/sysctl.conf
else else
# CentOS 5 and 6 # CentOS 5 and 6
@ -308,7 +308,7 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
# If SELinux is enabled and a custom port was selected, we need this # If SELinux is enabled and a custom port was selected, we need this
if hash sestatus 2>/dev/null; then if hash sestatus 2>/dev/null; then
if sestatus | grep "Current mode" | grep -qs "enforcing"; then if sestatus | grep "Current mode" | grep -qs "enforcing"; then
if [[ "$PORT" != '1194' ]]; then if [ "$PORT" != '1194' ]; then
# semanage isn't available in CentOS 6 by default # semanage isn't available in CentOS 6 by default
if ! hash semanage 2>/dev/null; then if ! hash semanage 2>/dev/null; then
yum install policycoreutils-python -y yum install policycoreutils-python -y
@ -318,7 +318,7 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
fi fi
fi fi
# And finally, restart OpenVPN # And finally, restart OpenVPN
if [[ "$OS" = 'debian' ]]; then if [ "$OS" = 'debian' ]; then
# Little hack to check for systemd # Little hack to check for systemd
if pgrep systemd-journal; then if pgrep systemd-journal; then
systemctl restart openvpn@server.service systemctl restart openvpn@server.service
@ -336,14 +336,14 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
fi fi
# Try to detect a NATed connection and ask about it to potential LowEndSpirit users # Try to detect a NATed connection and ask about it to potential LowEndSpirit users
EXTERNALIP=$(wget -qO- ipv4.icanhazip.com) EXTERNALIP=$(wget -qO- ipv4.icanhazip.com)
if [[ "$IP" != "$EXTERNALIP" ]]; then if [ "$IP" != "$EXTERNALIP" ]; then
echo "" echo ""
echo "Looks like your server is behind a NAT!" echo "Looks like your server is behind a NAT!"
echo "" echo ""
echo "If your server is NATed (e.g. LowEndSpirit), I need to know the external IP" echo "If your server is NATed (e.g. LowEndSpirit), I need to know the external IP"
echo "If that's not the case, just ignore this and leave the next field blank" echo "If that's not the case, just ignore this and leave the next field blank"
read -p "External IP: " -e USEREXTERNALIP read -p "External IP: " -e USEREXTERNALIP
if [[ "$USEREXTERNALIP" != "" ]]; then if [ "$USEREXTERNALIP" != "" ]; then
IP=$USEREXTERNALIP IP=$USEREXTERNALIP
fi fi
fi fi