Merge b205980053 into b3f62850e7
This commit is contained in:
Angristan
GitHub
commit
5ca720f7ad
1 changed files with 44 additions and 164 deletions
|
|
@ -24,14 +24,14 @@ if [[ -e /etc/debian_version ]]; then
|
|||
# Getting the version number, to verify that a recent version of OpenVPN is available
|
||||
VERSION_ID=$(cat /etc/os-release | grep "VERSION_ID")
|
||||
RCLOCAL='/etc/rc.local'
|
||||
SYSCTL='/etc/sysctl.conf'
|
||||
if [[ "$VERSION_ID" != 'VERSION_ID="7"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="8"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="12.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="14.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="16.04"' ]] && [[ "$VERSION_ID" != 'VERSION_ID="16.10"' ]]; then
|
||||
echo "Your version of Debian/Ubuntu is not supported."
|
||||
echo "I can't install a recent version of OpenVPN on your system."
|
||||
echo "I can't install OpenVPN 2.4 on your system."
|
||||
echo ""
|
||||
echo "However, if you're using Debian unstable/testing, or Ubuntu beta,"
|
||||
echo "then you can continue, a recent version of OpenVPN is available on these."
|
||||
echo "Keep in mind they are not supported, though."
|
||||
echo "then you can continue, this version of OpenVPN is available on these."
|
||||
echo "Keep in mind these releases are not supported, though."
|
||||
|
||||
while [[ $CONTINUE != "y" && $CONTINUE != "n" ]]; do
|
||||
read -p "Continue ? [y/n]: " -e CONTINUE
|
||||
done
|
||||
|
|
@ -43,20 +43,16 @@ if [[ -e /etc/debian_version ]]; then
|
|||
elif [[ -e /etc/centos-release || -e /etc/redhat-release ]]; then
|
||||
OS=centos
|
||||
RCLOCAL='/etc/rc.d/rc.local'
|
||||
SYSCTL='/etc/sysctl.conf'
|
||||
# Needed for CentOS 7
|
||||
chmod +x /etc/rc.d/rc.local
|
||||
elif [[ -e /etc/arch-release ]]; then
|
||||
OS=arch
|
||||
RCLOCAL='/etc/rc.local'
|
||||
SYSCTL='/etc/sysctl.d/openvpn.conf'
|
||||
else
|
||||
echo "Looks like you aren't running this installer on a Debian, Ubuntu, CentOS or ArchLinux system"
|
||||
echo "Looks like you aren't running this installer on a Debian, Ubuntu or CentOS system"
|
||||
exit 4
|
||||
fi
|
||||
|
||||
newclient () {
|
||||
# Generates the custom client.ovpn
|
||||
# We put everything in the client file
|
||||
cp /etc/openvpn/client-template.txt ~/$1.ovpn
|
||||
echo "<ca>" >> ~/$1.ovpn
|
||||
cat /etc/openvpn/easy-rsa/pki/ca.crt >> ~/$1.ovpn
|
||||
|
|
@ -67,10 +63,9 @@ newclient () {
|
|||
echo "<key>" >> ~/$1.ovpn
|
||||
cat /etc/openvpn/easy-rsa/pki/private/$1.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
|
||||
echo "<tls-crypt>" >> ~/$1.ovpn
|
||||
cat /etc/openvpn/tls-crypt.key >> ~/$1.ovpn
|
||||
echo "</tls-crypt>" >> ~/$1.ovpn
|
||||
}
|
||||
|
||||
# Try to get our IP from the system and fallback to the Internet.
|
||||
|
|
@ -165,8 +160,6 @@ if [[ -e /etc/openvpn/server.conf ]]; then
|
|||
fi
|
||||
if [[ "$OS" = 'debian' ]]; then
|
||||
apt-get remove --purge -y openvpn openvpn-blacklist
|
||||
elif [[ "$OS" = 'arch' ]]; then
|
||||
pacman -R openvpn --noconfirm
|
||||
else
|
||||
yum remove openvpn -y
|
||||
fi
|
||||
|
|
@ -200,7 +193,7 @@ else
|
|||
read -p "Port: " -e -i 1194 PORT
|
||||
echo ""
|
||||
echo "What protocol do you want for OpenVPN?"
|
||||
echo "Unless UDP is blocked, you should not use TCP (unnecessarily slower)"
|
||||
echo "Unless UDP is blocked, you should not use TCP (slower)"
|
||||
while [[ $PROTOCOL != "UDP" && $PROTOCOL != "TCP" ]]; do
|
||||
read -p "Protocol [UDP/TCP]: " -e -i UDP PROTOCOL
|
||||
done
|
||||
|
|
@ -215,86 +208,6 @@ else
|
|||
read -p "DNS [1-5]: " -e -i 2 DNS
|
||||
done
|
||||
echo ""
|
||||
echo "See https://github.com/Angristan/OpenVPN-install#encryption to learn more about "
|
||||
echo "the encryption in OpenVPN and the choices I made in this script."
|
||||
echo "Please note that all the choices proposed are secure (to a different degree)"
|
||||
echo "and are still viable to date, unlike some default OpenVPN options"
|
||||
echo ''
|
||||
echo "Choose which cipher you want to use for the data channel:"
|
||||
echo " 1) AES-128-CBC (fastest and sufficiently secure for everyone, recommended)"
|
||||
echo " 2) AES-192-CBC"
|
||||
echo " 3) AES-256-CBC"
|
||||
echo "Alternatives to AES, use them only if you know what you're doing."
|
||||
echo "They are relatively slower but as secure as AES."
|
||||
echo " 4) CAMELLIA-128-CBC"
|
||||
echo " 5) CAMELLIA-192-CBC"
|
||||
echo " 6) CAMELLIA-256-CBC"
|
||||
echo " 7) SEED-CBC"
|
||||
while [[ $CIPHER != "1" && $CIPHER != "2" && $CIPHER != "3" && $CIPHER != "4" && $CIPHER != "5" && $CIPHER != "6" && $CIPHER != "7" ]]; do
|
||||
read -p "Cipher [1-7]: " -e -i 1 CIPHER
|
||||
done
|
||||
case $CIPHER in
|
||||
1)
|
||||
CIPHER="cipher AES-128-CBC"
|
||||
;;
|
||||
2)
|
||||
CIPHER="cipher AES-192-CBC"
|
||||
;;
|
||||
3)
|
||||
CIPHER="cipher AES-256-CBC"
|
||||
;;
|
||||
4)
|
||||
CIPHER="cipher CAMELLIA-128-CBC"
|
||||
;;
|
||||
5)
|
||||
CIPHER="cipher CAMELLIA-192-CBC"
|
||||
;;
|
||||
6)
|
||||
CIPHER="cipher CAMELLIA-256-CBC"
|
||||
;;
|
||||
5)
|
||||
CIPHER="cipher SEED-CBC"
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Choose what size of Diffie-Hellman key you want to use:"
|
||||
echo " 1) 2048 bits (fastest)"
|
||||
echo " 2) 3072 bits (recommended, best compromise)"
|
||||
echo " 3) 4096 bits (most secure)"
|
||||
while [[ $DH_KEY_SIZE != "1" && $DH_KEY_SIZE != "2" && $DH_KEY_SIZE != "3" ]]; do
|
||||
read -p "DH key size [1-3]: " -e -i 2 DH_KEY_SIZE
|
||||
done
|
||||
case $DH_KEY_SIZE in
|
||||
1)
|
||||
DH_KEY_SIZE="2048"
|
||||
;;
|
||||
2)
|
||||
DH_KEY_SIZE="3072"
|
||||
;;
|
||||
3)
|
||||
DH_KEY_SIZE="4096"
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Choose what size of RSA key you want to use:"
|
||||
echo " 1) 2048 bits (fastest)"
|
||||
echo " 2) 3072 bits (recommended, best compromise)"
|
||||
echo " 3) 4096 bits (most secure)"
|
||||
while [[ $RSA_KEY_SIZE != "1" && $RSA_KEY_SIZE != "2" && $RSA_KEY_SIZE != "3" ]]; do
|
||||
read -p "DH key size [1-3]: " -e -i 2 RSA_KEY_SIZE
|
||||
done
|
||||
case $RSA_KEY_SIZE in
|
||||
1)
|
||||
RSA_KEY_SIZE="2048"
|
||||
;;
|
||||
2)
|
||||
RSA_KEY_SIZE="3072"
|
||||
;;
|
||||
3)
|
||||
RSA_KEY_SIZE="4096"
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
echo "Finally, tell me a name for the client certificate and configuration"
|
||||
while [[ $CLIENT = "" ]]; do
|
||||
echo "Please, use one word only, no special characters"
|
||||
|
|
@ -309,77 +222,42 @@ else
|
|||
# We add the OpenVPN repo to get the latest version.
|
||||
# Debian 7
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="7"' ]]; then
|
||||
echo "deb http://swupdate.openvpn.net/apt wheezy main" > /etc/apt/sources.list.d/swupdate-openvpn.list
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 wheezy main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Debian 8
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="8"' ]]; then
|
||||
echo "deb http://swupdate.openvpn.net/apt jessie main" > /etc/apt/sources.list.d/swupdate-openvpn.list
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 jessie main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt update
|
||||
fi
|
||||
# Ubuntu 12.04
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="12.04"' ]]; then
|
||||
echo "deb http://swupdate.openvpn.net/apt precise main" > /etc/apt/sources.list.d/swupdate-openvpn.list
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 precise main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Ubuntu 14.04
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="14.04"' ]]; then
|
||||
echo "deb http://swupdate.openvpn.net/apt trusty main" > /etc/apt/sources.list.d/swupdate-openvpn.list
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 trusty main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Ubuntu >= 16.04 and Debian > 8 have OpenVPN > 2.3.3 without the need of a third party repository.
|
||||
# The we install OpenVPN
|
||||
# Ubuntu 16.04
|
||||
if [[ "$VERSION_ID" = 'VERSION_ID="16.04"' ]]; then
|
||||
echo "deb http://build.openvpn.net/debian/openvpn/release/2.4 xenial main" > /etc/apt/sources.list.d/openvpn.list
|
||||
wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg | apt-key add -
|
||||
apt-get update
|
||||
fi
|
||||
# Then we install OpenVPN
|
||||
apt-get install openvpn iptables openssl wget ca-certificates curl -y
|
||||
elif [[ "$OS" = 'centos' ]]; then
|
||||
else
|
||||
# Else, the distro is CentOS
|
||||
yum install epel-release -y
|
||||
yum install openvpn iptables openssl wget ca-certificates curl -y
|
||||
else
|
||||
# Else, the distro is ArchLinux
|
||||
echo ""
|
||||
echo ""
|
||||
echo "As you're using ArchLinux, I need to update the packages on your system to install those I need."
|
||||
echo "Not doing that could cause problems between dependencies, or missing files in repositories."
|
||||
echo ""
|
||||
echo "Continuing will update your installed packages and install needed ones."
|
||||
while [[ $CONTINUE != "y" && $CONTINUE != "n" ]]; do
|
||||
read -p "Continue ? [y/n]: " -e -i y CONTINUE
|
||||
done
|
||||
if [[ "$CONTINUE" = "n" ]]; then
|
||||
echo "Ok, bye !"
|
||||
exit 4
|
||||
fi
|
||||
|
||||
if [[ "$OS" = 'arch' ]]; then
|
||||
# Install rc.local
|
||||
echo "[Unit]
|
||||
Description=/etc/rc.local compatibility
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=/etc/rc.local
|
||||
RemainAfterExit=yes
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target" > /etc/systemd/system/rc-local.service
|
||||
chmod +x /etc/rc.local
|
||||
systemctl enable rc-local.service
|
||||
if ! grep '#!' $RCLOCAL; then
|
||||
echo "#!/bin/bash" > $RCLOCAL
|
||||
fi
|
||||
fi
|
||||
|
||||
# Install dependencies
|
||||
pacman -Syu openvpn iptables openssl wget ca-certificates curl --needed --noconfirm
|
||||
if [[ "$OS" = 'arch' ]]; then
|
||||
touch /etc/iptables/iptables.rules # iptables won't start if this file does not exist
|
||||
systemctl enable iptables
|
||||
systemctl start iptables
|
||||
fi
|
||||
fi
|
||||
|
||||
# Find out if the machine uses nogroup or nobody for the permissionless group
|
||||
if grep -qs "^nogroup:" /etc/group; then
|
||||
NOGROUP=nogroup
|
||||
|
|
@ -399,18 +277,19 @@ WantedBy=multi-user.target" > /etc/systemd/system/rc-local.service
|
|||
chown -R root:root /etc/openvpn/easy-rsa/
|
||||
rm -rf ~/EasyRSA-3.0.1.tgz
|
||||
cd /etc/openvpn/easy-rsa/
|
||||
echo "set_var EASYRSA_KEY_SIZE $RSA_KEY_SIZE" > vars
|
||||
echo 'set_var EASYRSA_ALGO ec
|
||||
set_var EASYRSA_CURVE sect571r1
|
||||
set_var EASYRSA_DIGEST "sha512"' > vars
|
||||
# Create the PKI, set up the CA, the DH params and the server + client certificates
|
||||
./easyrsa init-pki
|
||||
./easyrsa --batch build-ca nopass
|
||||
openssl dhparam $DH_KEY_SIZE -out dh.pem
|
||||
./easyrsa build-server-full server nopass
|
||||
./easyrsa build-client-full $CLIENT nopass
|
||||
./easyrsa gen-crl
|
||||
# generate tls-auth key
|
||||
openvpn --genkey --secret /etc/openvpn/tls-auth.key
|
||||
# Generate tls-crypt key
|
||||
openvpn --genkey --secret /etc/openvpn/tls-crypt.key
|
||||
# Move all the generated files
|
||||
cp pki/ca.crt pki/private/ca.key 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/issued/server.crt pki/private/server.key /etc/openvpn/easy-rsa/pki/crl.pem /etc/openvpn
|
||||
# Make cert revocation list readable for non-root
|
||||
chmod 644 /etc/openvpn/crl.pem
|
||||
|
||||
|
|
@ -460,25 +339,26 @@ echo "crl-verify crl.pem
|
|||
ca ca.crt
|
||||
cert server.crt
|
||||
key server.key
|
||||
tls-auth tls-auth.key 0
|
||||
dh dh.pem
|
||||
auth SHA256
|
||||
$CIPHER
|
||||
tls-crypt tls-crypt.key 0
|
||||
dh none
|
||||
ecdh-curve sect571r1
|
||||
auth SHA512
|
||||
cipher AES-256-GCM
|
||||
tls-server
|
||||
tls-version-min 1.2
|
||||
tls-cipher TLS-DHE-RSA-WITH-AES-128-GCM-SHA256
|
||||
tls-cipher TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
|
||||
status openvpn.log
|
||||
verb 3" >> /etc/openvpn/server.conf
|
||||
|
||||
# Create the sysctl configuration file if needed (mainly for Arch Linux)
|
||||
if [[ ! -e $SYSCTL ]]; then
|
||||
touch $SYSCTL
|
||||
if [[ ! -e /etc/sysctl.conf ]]; then
|
||||
touch /etc/sysctl.conf
|
||||
fi
|
||||
|
||||
# Enable net.ipv4.ip_forward for the system
|
||||
sed -i '/\<net.ipv4.ip_forward\>/c\net.ipv4.ip_forward=1' $SYSCTL
|
||||
if ! grep -q "\<net.ipv4.ip_forward\>" $SYSCTL; then
|
||||
echo 'net.ipv4.ip_forward=1' >> $SYSCTL
|
||||
sed -i '/\<net.ipv4.ip_forward\>/c\net.ipv4.ip_forward=1' /etc/sysctl.conf
|
||||
if ! grep -q "\<net.ipv4.ip_forward\>" /etc/sysctl.conf; then
|
||||
echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf
|
||||
fi
|
||||
# Avoid an unneeded reboot
|
||||
echo 1 > /proc/sys/net/ipv4/ip_forward
|
||||
|
|
@ -579,11 +459,11 @@ nobind
|
|||
persist-key
|
||||
persist-tun
|
||||
remote-cert-tls server
|
||||
auth SHA256
|
||||
$CIPHER
|
||||
auth SHA512
|
||||
cipher AES-256-GCM
|
||||
tls-client
|
||||
tls-version-min 1.2
|
||||
tls-cipher TLS-DHE-RSA-WITH-AES-128-GCM-SHA256
|
||||
tls-cipher TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
|
||||
setenv opt block-outside-dns
|
||||
verb 3" >> /etc/openvpn/client-template.txt
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue