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enable tls-auth and perfect forwarding secrecy

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jtbr 2016-04-10 18:53:29 +02:00
parent d844154a45
commit b3fb14bcb4
1 changed files with 11 additions and 2 deletions
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13
openvpn-install.sh
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@ -56,6 +56,10 @@ newclient () {
echo "<key>" >> ~/$1.ovpn echo "<key>" >> ~/$1.ovpn
cat /etc/openvpn/easy-rsa/pki/private/$1.key >> ~/$1.ovpn cat /etc/openvpn/easy-rsa/pki/private/$1.key >> ~/$1.ovpn
echo "</key>" >> ~/$1.ovpn echo "</key>" >> ~/$1.ovpn
echo "key-direction 1" >> ~/$1.ovpn
echo "<tls-auth>" >> ~/$1.ovpn
cat /etc/openvpn/tls-auth.key >> ~/$1.ovpn
echo "</tls-auth>" >> ~/$1.ovpn
} }
@ -273,6 +277,8 @@ set_var EASYRSA_DIGEST "sha384"" > vars
./easyrsa build-server-full server nopass ./easyrsa build-server-full server nopass
./easyrsa build-client-full $CLIENT nopass ./easyrsa build-client-full $CLIENT nopass
./easyrsa gen-crl ./easyrsa gen-crl
# generate tls-auth key
openvpn --genkey --secret /etc/openvpn/tls-auth.key
# Move the stuff we need # Move the stuff we need
cp pki/ca.crt pki/private/ca.key pki/dh.pem pki/issued/server.crt pki/private/server.key /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn cp pki/ca.crt pki/private/ca.key pki/dh.pem pki/issued/server.crt pki/private/server.key /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn
# Make cert revocation list readable for non-root # Make cert revocation list readable for non-root
@ -334,7 +340,9 @@ tls-version-min 1.2" > /etc/openvpn/server.conf
echo "keepalive 10 120 echo "keepalive 10 120
persist-key persist-key
persist-tun persist-tun
crl-verify crl.pem" >> /etc/openvpn/server.conf crl-verify crl.pem
tls-server
tls-auth tls-auth.key 0" >> /etc/openvpn/server.conf
# Enable net.ipv4.ip_forward for the system # Enable net.ipv4.ip_forward for the system
if [[ "$OS" = 'debian' ]]; then if [[ "$OS" = 'debian' ]]; then
sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|' /etc/sysctl.conf sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|' /etc/sysctl.conf
@ -425,7 +433,8 @@ persist-tun
remote-cert-tls server remote-cert-tls server
cipher AES-256-CBC cipher AES-256-CBC
auth SHA512 auth SHA512
tls-version-min 1.2" > /etc/openvpn/client-common.txt tls-version-min 1.2
tls-client" > /etc/openvpn/client-common.txt
if [[ "$VARIANT" = '1' ]]; then if [[ "$VARIANT" = '1' ]]; then
# If the user selected the fast, less hardened version # If the user selected the fast, less hardened version
# Or if the user selected a non-existant variant, we fallback to fast # Or if the user selected a non-existant variant, we fallback to fast