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Improve questions for NATed servers

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This commit is contained in:
angristan 2018-09-21 21:53:39 +02:00
parent 4144fa9dff
commit a0ff4d7cf9
1 changed files with 6 additions and 4 deletions
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10
openvpn-install.sh
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@ -149,8 +149,7 @@ function installOpenVPN () {
echo "You can leave the default options and just press enter if you are ok with them." echo "You can leave the default options and just press enter if you are ok with them."
echo "" echo ""
echo "I need to know the IPv4 address of the network interface you want OpenVPN listening to." echo "I need to know the IPv4 address of the network interface you want OpenVPN listening to."
echo "If your server is running behind a NAT, (e.g. LowEndSpirit, Scaleway) leave the IP address as it is. (local/private IP)" echo "Unless your server is behind NAT, it should be your public IPv4 address."
echo "Otherwise, it should be your public IPv4 address."
# Detect public IPv4 address and pre-fill for the user # Detect public IPv4 address and pre-fill for the user
IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1) IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
@ -158,8 +157,11 @@ function installOpenVPN () {
# If $IP is a private IP address, the server must be behind NAT # If $IP is a private IP address, the server must be behind NAT
if echo "$IP" | grep -qE '^(10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.|192\.168)'; then if echo "$IP" | grep -qE '^(10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.|192\.168)'; then
echo "" echo ""
echo "This server is behind NAT. What is the public IPv4 address or hostname?" echo "It seems this server is behind NAT. What is its public IPv4 address?"
read -rp "Public IP address / hostname: " -e PUBLICIP echo "We need it for the clients to connect to the server."
until [[ "$PUBLICIP" =~ ^((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])$ ]];do
read -rp "Public IPv4 address: " -e PUBLICIP
done
fi fi
echo "" echo ""