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Various bugfixes and improvements

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- Assisted configuration for servers behind a NAT
- Better IP autodetection
- Fix certificate revocation
This commit is contained in:
Nyr 2013-07-07 21:28:08 +02:00
parent ce8077f048
commit 730691c8a1
1 changed files with 29 additions and 19 deletions
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48
openvpn-install.sh Normal file → Executable file
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@ -23,17 +23,11 @@ fi
# Try to get our IP from the system and fallback to the Internet.
# I do this to make the script compatible with NATed servers (lowendspirit.com)
# and to avoid getting an IPv6.
# Sorry for doing this, I didn't want to :(
echo "$(grep address /etc/network/interfaces | grep -v 127.0.0.1 | awk '{print $2}' | grep -q '.' | head -1)"
if [ ! $? = 0 ]; then
IP=$(wget -qO- ipv4.icanhazip.com)
else
IP=$(grep address /etc/network/interfaces | grep -v 127.0.0.1 | awk '{print $2}' | grep '.' | head -1)
IP=$(ifconfig | grep 'inet addr:' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | cut -d: -f2 | awk '{ print $1}')
if [ "$IP" = "" ]; then
IP=$(wget -qO- ipv4.icanhazip.com)
fi
# We will use this later
EXTERNALIP=$(wget -qO- ipv4.icanhazip.com)
if [ -e /etc/openvpn/server.conf ]; then
while :
@ -80,10 +74,19 @@ if [ -e /etc/openvpn/server.conf ]; then
echo ""
echo "Tell me the existing client name"
read -p "Client name: " -e -i client CLIENT
cd /etc/openvpn/easy-rsa/2.0/
. /etc/openvpn/easy-rsa/2.0/vars
. /etc/openvpn/easy-rsa/2.0/revoke-full $CLIENT
echo ""
echo "Certificate for client $CLIENT revoked"
# If it's the first time revoking a cert, we need to add the crl-verify line
if grep -q "crl-verify" "/etc/openvpn/server.conf"; then
echo ""
echo "Certificate for client $CLIENT revoked"
else
echo "crl-verify /etc/openvpn/easy-rsa/2.0/keys/crl.pem" >> "/etc/openvpn/server.conf"
/etc/init.d/openvpn restart
echo ""
echo "Certificate for client $CLIENT revoked"
fi
exit
;;
3)
@ -174,6 +177,20 @@ else
/etc/init.d/openvpn restart
# Let's generate the client config
mkdir ~/ovpn-$CLIENT
# Try to detect a NATed connection and ask about it to potential LowEndSpirit
# users
EXTERNALIP=$(wget -qO- ipv4.icanhazip.com)
if [ "$IP" != "$EXTERNALIP" ]; then
echo ""
echo "Looks like your server is behind a NAT!"
echo ""
echo "If your server is NATed (LowEndSpirit), I need to know the external IP"
echo "If that's not the case, just ignore this and leave the next field blank"
read -p "External IP:" -e USEREXTERNALIP
if [ $USEREXTERNALIP != "" ]; then
IP=$USEREXTERNALIP
fi
fi
# IP/port set on the default client.conf so we can add further users
# without asking for them
sed -i "s|remote my-server-1 1194|remote $IP $PORT|" /usr/share/doc/openvpn/examples/sample-config-files/client.conf
@ -192,11 +209,4 @@ else
echo ""
echo "Your client config is available at ~/ovpn-$CLIENT.tar.gz"
echo "If you want to add more clients, you simply need to run this script another time!"
# Try to detect a NATed connection and show a warning to potential
# LowEndSpirit users
if [ "$IP" != "$EXTERNALIP" ]; then
echo ""
echo "If you are running this on a LowEndSpirit VPS, please take a minute to read:"
echo "http://cl.ly/OuSW"
fi
fi
fi