mirror of
https://github.com/Nyr/openvpn-install.git
synced 2024-11-23 13:36:08 +03:00
Grammar improvements
This commit is contained in:
Nyr
parent
e14c2359c8
commit
6f155b997d
@ -10,18 +10,18 @@ read -N 999999999 -t 0.001
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# Detect Debian users running the script with "sh" instead of bash
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if readlink /proc/$$/exe | grep -q "dash"; then
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echo "This script needs to be run with bash, not sh"
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echo 'This installer needs to be run with "bash", not "sh".'
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exit
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fi
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if [[ "$EUID" -ne 0 ]]; then
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echo "Sorry, you need to run this as root"
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echo "This installer needs to be run with superuser privileges."
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exit
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fi
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# Detect OpenVZ 6
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if [[ $(uname -r | cut -d "." -f 1) -eq 2 ]]; then
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echo "The system is running an old kernel, which is incompatible with this installer"
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echo "The system is running an old kernel, which is incompatible with this installer."
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exit
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fi
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@ -44,38 +44,38 @@ elif [[ -e /etc/fedora-release ]]; then
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os_version=$(grep -oE '[0-9]+' /etc/fedora-release | head -1)
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group_name="nobody"
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else
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echo "Looks like you aren't running this installer on Ubuntu, Debian, CentOS or Fedora"
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echo "This installer seems to be running on an unsupported distribution.
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Supported distributions are Ubuntu, Debian, CentOS, and Fedora."
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exit
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fi
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if [[ "$os" == "ubuntu" && "$os_version" -lt 1804 ]]; then
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echo "Ubuntu 18.04 or higher is required to use this installer
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This version of Ubuntu is too old and unsupported"
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echo "Ubuntu 18.04 or higher is required to use this installer.
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This version of Ubuntu is too old and unsupported."
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exit
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fi
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if [[ "$os" == "debian" && "$os_version" -lt 9 ]]; then
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echo "Debian 9 or higher is required to use this installer
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This version of Debian is too old and unsupported"
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echo "Debian 9 or higher is required to use this installer.
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This version of Debian is too old and unsupported."
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exit
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fi
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if [[ "$os" == "centos" && "$os_version" -lt 7 ]]; then
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echo "CentOS 7 or higher is required to use this installer
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This version of CentOS is too old and unsupported"
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echo "CentOS 7 or higher is required to use this installer.
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This version of CentOS is too old and unsupported."
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exit
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fi
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if [[ ! -e /dev/net/tun ]] || ! ( exec 7<>/dev/net/tun ) 2>/dev/null; then
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echo "This system does not have the TUN device available
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TUN needs to be enabled before running this installer"
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echo "The system does not have the TUN device available.
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TUN needs to be enabled before running this installer."
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exit
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fi
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# Detect environments where $PATH does not include the sbin directories
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if ! grep -q sbin <<< $PATH; then
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echo '$PATH does not include sbin
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Try using "su -" instead of "su"'
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echo '$PATH does not include sbin. Try using "su -" instead of "su".'
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exit
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fi
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@ -101,16 +101,13 @@ new_client () {
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if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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clear
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echo 'Welcome to this OpenVPN road warrior installer!'
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echo
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echo "I need to ask you a few questions before starting setup."
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echo "You can use the default options and just press enter if you are ok with them."
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# If system has a single IPv4, it is selected automatically. Else, ask the user
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if [[ $(ip -4 addr | grep inet | grep -vEc '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}') -eq 1 ]]; then
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ip=$(ip -4 addr | grep inet | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}')
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else
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number_of_ip=$(ip -4 addr | grep inet | grep -vEc '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}')
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echo
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echo "What IPv4 address should the OpenVPN server use?"
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echo "Which IPv4 address should be used?"
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ip -4 addr | grep inet | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | nl -s ') '
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read -p "IPv4 address [1]: " ip_number
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until [[ -z "$ip_number" || "$ip_number" =~ ^[0-9]+$ && "$ip_number" -le "$number_of_ip" ]]; do
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@ -142,7 +139,7 @@ if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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if [[ $(ip -6 addr | grep -c 'inet6 [23]') -gt 1 ]]; then
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number_of_ip6=$(ip -6 addr | grep -c 'inet6 [23]')
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echo
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echo "What IPv6 address should the OpenVPN server use?"
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echo "Which IPv6 address should be used?"
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ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | nl -s ') '
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read -p "IPv6 address [1]: " ip6_number
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until [[ -z "$ip6_number" || "$ip6_number" =~ ^[0-9]+$ && "$ip6_number" -le "$number_of_ip6" ]]; do
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@ -153,7 +150,7 @@ if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | sed -n "$ip6_number"p)
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fi
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echo
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echo "Which protocol do you want for OpenVPN connections?"
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echo "Which protocol should OpenVPN use?"
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echo " 1) UDP (recommended)"
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echo " 2) TCP"
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read -p "Protocol [1]: " protocol
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@ -170,7 +167,7 @@ if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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;;
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esac
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echo
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echo "What port do you want OpenVPN listening to?"
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echo "What port should OpenVPN listen to?"
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read -p "Port [1194]: " port
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until [[ -z "$port" || "$port" =~ ^[0-9]+$ && "$port" -le 65535 ]]; do
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echo "$port: invalid port."
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@ -178,40 +175,38 @@ if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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done
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[[ -z "$port" ]] && port="1194"
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echo
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echo "Which DNS do you want to use with the VPN?"
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echo "Select a DNS server for the clients:"
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echo " 1) Current system resolvers"
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echo " 2) 1.1.1.1"
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echo " 3) Google"
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echo " 4) OpenDNS"
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echo " 5) NTT"
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echo " 6) AdGuard"
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read -p "DNS [1]: " dns
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read -p "DNS server [1]: " dns
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until [[ -z "$dns" || "$dns" =~ ^[1-6]$ ]]; do
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echo "$dns: invalid selection."
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read -p "DNS [1]: " dns
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read -p "DNS server [1]: " dns
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done
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echo
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echo "Finally, tell me a name for the client certificate."
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read -p "Client name [client]: " unsanitized_client
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echo "Enter a name for the first client:"
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read -p "Name [client]: " unsanitized_client
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# Allow a limited set of characters to avoid conflicts
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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[[ -z "$client" ]] && client="client"
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echo
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echo "We are ready to set up your OpenVPN server now."
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echo "OpenVPN installation is ready to begin now."
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# Install a firewall in the rare case where one is not already available
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if ! systemctl is-active --quiet firewalld.service && ! hash iptables 2>/dev/null; then
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if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
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firewall="firewalld"
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# We don't want to silently enable firewalld, so we give a subtle warning
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# If the user continues, firewalld will be installed and enabled during setup
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echo
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echo "firewalld, which is required to manage routing tables, will also be installed."
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elif [[ "$os" == "debian" || "$os" == "ubuntu" ]]; then
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# iptables is way less invasive than firewalld so no warning is given
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firewall="iptables"
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fi
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fi
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echo
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read -n1 -r -p "Press any key to continue..."
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# If running inside a container, disable LimitNPROC to prevent conflicts
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if systemd-detect-virt -cq; then
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@ -430,31 +425,31 @@ verb 3" > /etc/openvpn/server/client-common.txt
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echo
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echo "Finished!"
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echo
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echo "Your client configuration is available at:" ~/"$client.ovpn"
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echo "If you want to add more clients, just run this script again!"
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echo "The client configuration is available in:" ~/"$client.ovpn"
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echo "New clients can be added by running this script again."
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else
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clear
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echo "Looks like OpenVPN is already installed."
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echo "OpenVPN is already installed."
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echo
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echo "What do you want to do?"
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echo "Select an option:"
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echo " 1) Add a new user"
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echo " 2) Revoke an existing user"
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echo " 3) Remove OpenVPN"
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echo " 4) Exit"
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read -p "Select an option: " option
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read -p "Option: " option
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until [[ "$option" =~ ^[1-4]$ ]]; do
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echo "$option: invalid selection."
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read -p "Select an option: " option
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read -p "Option: " option
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done
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case "$option" in
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1)
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echo
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echo "Tell me a name for the client certificate."
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read -p "Client name: " unsanitized_client
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echo "Provide a name for the client:"
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read -p "Name: " unsanitized_client
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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while [[ -z "$client" || -e /etc/openvpn/server/easy-rsa/pki/issued/"$client".crt ]]; do
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echo "$client: invalid client name."
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read -p "Client name: " unsanitized_client
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echo "$client: invalid name."
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read -p "Name: " unsanitized_client
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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done
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cd /etc/openvpn/server/easy-rsa/
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@ -462,7 +457,7 @@ else
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# Generates the custom client.ovpn
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new_client
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echo
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echo "Client $client added, configuration is available at:" ~/"$client.ovpn"
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echo "$client added. Configuration available in:" ~/"$client.ovpn"
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exit
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;;
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2)
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@ -471,23 +466,23 @@ else
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number_of_clients=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep -c "^V")
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if [[ "$number_of_clients" = 0 ]]; then
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echo
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echo "You have no existing clients!"
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echo "There are no existing clients!"
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exit
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fi
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echo
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echo "Select the existing client certificate you want to revoke:"
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echo "Select the client to revoke:"
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tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
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read -p "Select one client: " client_number
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read -p "Client: " client_number
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until [[ "$client_number" =~ ^[0-9]+$ && "$client_number" -le "$number_of_clients" ]]; do
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echo "$client_number: invalid selection."
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read -p "Select one client: " client_number
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read -p "Client: " client_number
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done
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client=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | sed -n "$client_number"p)
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echo
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read -p "Do you really want to revoke access for client $client? [y/N]: " revoke
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read -p "Confirm $client revocation? [y/N]: " revoke
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until [[ "$revoke" =~ ^[yYnN]*$ ]]; do
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echo "$revoke: invalid selection."
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read -p "Do you really want to revoke access for client $client? [y/N]: " revoke
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read -p "Confirm $client revocation? [y/N]: " revoke
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done
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if [[ "$revoke" =~ ^[yY]$ ]]; then
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cd /etc/openvpn/server/easy-rsa/
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@ -498,19 +493,19 @@ else
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# CRL is read with each client connection, when OpenVPN is dropped to nobody
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chown nobody:"$group_name" /etc/openvpn/server/crl.pem
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echo
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echo "Certificate for client $client revoked!"
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echo "$client revoked!"
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else
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echo
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echo "Certificate revocation for client $client aborted!"
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echo "$client revocation aborted!"
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fi
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exit
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;;
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3)
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echo
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read -p "Do you really want to remove OpenVPN? [y/N]: " remove
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read -p "Confirm OpenVPN removal? [y/N]: " remove
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until [[ "$remove" =~ ^[yYnN]*$ ]]; do
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echo "$remove: invalid selection."
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read -p "Do you really want to remove OpenVPN? [y/N]: " remove
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read -p "Confirm OpenVPN removal? [y/N]: " remove
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done
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if [[ "$remove" =~ ^[yY]$ ]]; then
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port=$(grep '^port ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
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@ -552,7 +547,7 @@ else
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echo "OpenVPN removed!"
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else
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echo
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echo "Removal aborted!"
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echo "OpenVPN removal aborted!"
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fi
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exit
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;;
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