linux:services:openvpn
Различия
Показаны различия между двумя версиями страницы.
| Предыдущая версия справа и слеваПредыдущая версияСледующая версия | Предыдущая версия | ||
| linux:services:openvpn [2022/03/26 23:03] – erizo | linux:services:openvpn [2024/01/29 12:49] (текущий) – внешнее изменение 127.0.0.1 | ||
|---|---|---|---|
| Строка 1: | Строка 1: | ||
| wget https:// | wget https:// | ||
| + | |||
| sudo bash ./ | sudo bash ./ | ||
| - | |||
| - | Текущее содержимое скрипта: | ||
| - | ''# | ||
| - | # | ||
| - | # https:// | ||
| - | # | ||
| - | # Copyright (c) 2013 Nyr. Released under the MIT License. | ||
| - | |||
| - | |||
| - | # Detect Debian users running the script with " | ||
| - | if readlink / | ||
| - | echo 'This installer needs to be run with " | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | # Discard stdin. Needed when running from an one-liner which includes a newline | ||
| - | read -N 999999 -t 0.001 | ||
| - | |||
| - | # Detect OpenVZ 6 | ||
| - | if [[ $(uname -r | cut -d " | ||
| - | echo "The system is running an old kernel, which is incompatible with this installer." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | # Detect OS | ||
| - | # $os_version variables aren't always in use, but are kept here for convenience | ||
| - | if grep -qs " | ||
| - | os=" | ||
| - | os_version=$(grep ' | ||
| - | group_name=" | ||
| - | elif [[ -e / | ||
| - | os=" | ||
| - | os_version=$(grep -oE ' | ||
| - | group_name=" | ||
| - | elif [[ -e / | ||
| - | os=" | ||
| - | os_version=$(grep -shoE ' | ||
| - | group_name=" | ||
| - | elif [[ -e / | ||
| - | os=" | ||
| - | os_version=$(grep -oE ' | ||
| - | group_name=" | ||
| - | else | ||
| - | echo "This installer seems to be running on an unsupported distribution. | ||
| - | Supported distros are Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | if [[ " | ||
| - | echo " | ||
| - | This version of Ubuntu is too old and unsupported." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | if [[ " | ||
| - | echo " | ||
| - | This version of Debian is too old and unsupported." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | if [[ " | ||
| - | echo " | ||
| - | This version of CentOS is too old and unsupported." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | # Detect environments where $PATH does not include the sbin directories | ||
| - | if ! grep -q sbin <<< | ||
| - | echo '$PATH does not include sbin. Try using "su -" instead of " | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | if [[ " | ||
| - | echo "This installer needs to be run with superuser privileges." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | if [[ ! -e / | ||
| - | echo "The system does not have the TUN device available. | ||
| - | TUN needs to be enabled before running this installer." | ||
| - | exit | ||
| - | fi | ||
| - | |||
| - | new_client () { | ||
| - | # Generates the custom client.ovpn | ||
| - | { | ||
| - | cat / | ||
| - | echo "< | ||
| - | cat / | ||
| - | echo "</ | ||
| - | echo "< | ||
| - | sed -ne '/ | ||
| - | echo "</ | ||
| - | echo "< | ||
| - | cat / | ||
| - | echo "</ | ||
| - | echo "< | ||
| - | sed -ne '/ | ||
| - | echo "</ | ||
| - | } > ~/" | ||
| - | } | ||
| - | |||
| - | if [[ ! -e / | ||
| - | # Detect some Debian minimal setups where neither wget nor curl are installed | ||
| - | if ! hash wget 2>/ | ||
| - | echo "Wget is required to use this installer." | ||
| - | read -n1 -r -p "Press any key to install Wget and continue..." | ||
| - | apt-get update | ||
| - | apt-get install -y wget | ||
| - | fi | ||
| - | clear | ||
| - | echo ' | ||
| - | # If system has a single IPv4, it is selected automatically. Else, ask the user | ||
| - | if [[ $(ip -4 addr | grep inet | grep -vEc ' | ||
| - | ip=$(ip -4 addr | grep inet | grep -vE ' | ||
| - | else | ||
| - | number_of_ip=$(ip -4 addr | grep inet | grep -vEc ' | ||
| - | echo | ||
| - | echo "Which IPv4 address should be used?" | ||
| - | ip -4 addr | grep inet | grep -vE ' | ||
| - | read -p "IPv4 address [1]: " ip_number | ||
| - | until [[ -z " | ||
| - | echo " | ||
| - | read -p "IPv4 address [1]: " ip_number | ||
| - | done | ||
| - | [[ -z " | ||
| - | ip=$(ip -4 addr | grep inet | grep -vE ' | ||
| - | fi | ||
| - | # If $ip is a private IP address, the server must be behind NAT | ||
| - | if echo " | ||
| - | echo | ||
| - | echo "This server is behind NAT. What is the public IPv4 address or hostname?" | ||
| - | # Get public IP and sanitize with grep | ||
| - | get_public_ip=$(grep -m 1 -oE ' | ||
| - | read -p " | ||
| - | # If the checkip service is unavailable and user didn't provide input, ask again | ||
| - | until [[ -n " | ||
| - | echo " | ||
| - | read -p " | ||
| - | done | ||
| - | [[ -z " | ||
| - | fi | ||
| - | # If system has a single IPv6, it is selected automatically | ||
| - | if [[ $(ip -6 addr | grep -c 'inet6 [23]') -eq 1 ]]; then | ||
| - | ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' | ||
| - | fi | ||
| - | # If system has multiple IPv6, ask the user to select one | ||
| - | if [[ $(ip -6 addr | grep -c 'inet6 [23]') -gt 1 ]]; then | ||
| - | number_of_ip6=$(ip -6 addr | grep -c 'inet6 [23]') | ||
| - | echo | ||
| - | echo "Which IPv6 address should be used?" | ||
| - | ip -6 addr | grep 'inet6 [23]' | cut -d '/' | ||
| - | read -p "IPv6 address [1]: " ip6_number | ||
| - | until [[ -z " | ||
| - | echo " | ||
| - | read -p "IPv6 address [1]: " ip6_number | ||
| - | done | ||
| - | [[ -z " | ||
| - | ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' | ||
| - | fi | ||
| - | echo | ||
| - | echo "Which protocol should OpenVPN use?" | ||
| - | echo " | ||
| - | echo " | ||
| - | read -p " | ||
| - | until [[ -z " | ||
| - | echo " | ||
| - | read -p " | ||
| - | done | ||
| - | case " | ||
| - | 1|"" | ||
| - | protocol=udp | ||
| - | ;; | ||
| - | 2) | ||
| - | protocol=tcp | ||
| - | ;; | ||
| - | esac | ||
| - | echo | ||
| - | echo "What port should OpenVPN listen to?" | ||
| - | read -p "Port [1194]: " port | ||
| - | until [[ -z " | ||
| - | echo " | ||
| - | read -p "Port [1194]: " port | ||
| - | done | ||
| - | [[ -z " | ||
| - | echo | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | read -p "DNS server [1]: " dns | ||
| - | until [[ -z " | ||
| - | echo "$dns: invalid selection." | ||
| - | read -p "DNS server [1]: " dns | ||
| - | done | ||
| - | echo | ||
| - | echo "Enter a name for the first client:" | ||
| - | read -p "Name [client]: " unsanitized_client | ||
| - | # Allow a limited set of characters to avoid conflicts | ||
| - | client=$(sed ' | ||
| - | [[ -z " | ||
| - | echo | ||
| - | echo " | ||
| - | # Install a firewall if firewalld or iptables are not already available | ||
| - | if ! systemctl is-active --quiet firewalld.service && ! hash iptables 2>/ | ||
| - | if [[ " | ||
| - | firewall=" | ||
| - | # We don't want to silently enable firewalld, so we give a subtle warning | ||
| - | # If the user continues, firewalld will be installed and enabled during setup | ||
| - | echo " | ||
| - | elif [[ " | ||
| - | # iptables is way less invasive than firewalld so no warning is given | ||
| - | firewall=" | ||
| - | fi | ||
| - | fi | ||
| - | read -n1 -r -p "Press any key to continue..." | ||
| - | # If running inside a container, disable LimitNPROC to prevent conflicts | ||
| - | if systemd-detect-virt -cq; then | ||
| - | mkdir / | ||
| - | echo " | ||
| - | LimitNPROC=infinity" | ||
| - | fi | ||
| - | if [[ " | ||
| - | apt-get update | ||
| - | apt-get install -y openvpn openssl ca-certificates $firewall | ||
| - | elif [[ " | ||
| - | yum install -y epel-release | ||
| - | yum install -y openvpn openssl ca-certificates tar $firewall | ||
| - | else | ||
| - | # Else, OS must be Fedora | ||
| - | dnf install -y openvpn openssl ca-certificates tar $firewall | ||
| - | fi | ||
| - | # If firewalld was just installed, enable it | ||
| - | if [[ " | ||
| - | systemctl enable --now firewalld.service | ||
| - | fi | ||
| - | # Get easy-rsa | ||
| - | easy_rsa_url=' | ||
| - | mkdir -p / | ||
| - | { wget -qO- " | ||
| - | chown -R root:root / | ||
| - | cd / | ||
| - | # Create the PKI, set up the CA and the server and client certificates | ||
| - | ./easyrsa init-pki | ||
| - | ./easyrsa --batch build-ca nopass | ||
| - | EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-server-full server nopass | ||
| - | EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full " | ||
| - | EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl | ||
| - | # Move the stuff we need | ||
| - | cp pki/ca.crt pki/ | ||
| - | # CRL is read with each client connection, while OpenVPN is dropped to nobody | ||
| - | chown nobody:" | ||
| - | # Without +x in the directory, OpenVPN can't run a stat() on the CRL file | ||
| - | chmod o+x / | ||
| - | # Generate key for tls-crypt | ||
| - | openvpn --genkey --secret / | ||
| - | # Create the DH parameters file using the predefined ffdhe2048 group | ||
| - | echo ' | ||
| - | MIIBCAKCAQEA////////// | ||
| - | +8yTnc4kmz75fS/ | ||
| - | 87VXE15/ | ||
| - | YdEIqUuyyOP7uWrat2DX9GgdT0Kj3jlN9K5W7edjcrsZCwenyO4KbXCeAvzhzffi | ||
| - | 7MA0BM0oNC9hkXL+nOmFg/ | ||
| - | ssbzSibBsu/ | ||
| - | -----END DH PARAMETERS-----' | ||
| - | # Generate server.conf | ||
| - | echo "local $ip | ||
| - | port $port | ||
| - | proto $protocol | ||
| - | dev tun | ||
| - | ca ca.crt | ||
| - | cert server.crt | ||
| - | key server.key | ||
| - | dh dh.pem | ||
| - | auth SHA512 | ||
| - | tls-crypt tc.key | ||
| - | topology subnet | ||
| - | server 10.8.0.0 255.255.255.0" | ||
| - | # IPv6 | ||
| - | if [[ -z " | ||
| - | echo 'push " | ||
| - | else | ||
| - | echo ' | ||
| - | echo 'push " | ||
| - | fi | ||
| - | echo ' | ||
| - | # DNS | ||
| - | case " | ||
| - | 1|"" | ||
| - | # Locate the proper resolv.conf | ||
| - | # Needed for systems running systemd-resolved | ||
| - | if grep -q ' | ||
| - | resolv_conf="/ | ||
| - | else | ||
| - | resolv_conf="/ | ||
| - | fi | ||
| - | # Obtain the resolvers from resolv.conf and use them for OpenVPN | ||
| - | grep -v ' | ||
| - | echo "push \" | ||
| - | done | ||
| - | ;; | ||
| - | 2) | ||
| - | echo 'push " | ||
| - | echo 'push " | ||
| - | ;; | ||
| - | 3) | ||
| - | echo 'push " | ||
| - | echo 'push " | ||
| - | ;; | ||
| - | 4) | ||
| - | echo 'push " | ||
| - | echo 'push " | ||
| - | ;; | ||
| - | 5) | ||
| - | echo 'push " | ||
| - | echo 'push " | ||
| - | ;; | ||
| - | 6) | ||
| - | echo 'push " | ||
| - | echo 'push " | ||
| - | ;; | ||
| - | esac | ||
| - | echo " | ||
| - | cipher AES-256-CBC | ||
| - | user nobody | ||
| - | group $group_name | ||
| - | persist-key | ||
| - | persist-tun | ||
| - | verb 3 | ||
| - | crl-verify crl.pem" | ||
| - | if [[ " | ||
| - | echo " | ||
| - | fi | ||
| - | # Enable net.ipv4.ip_forward for the system | ||
| - | echo ' | ||
| - | # Enable without waiting for a reboot or service restart | ||
| - | echo 1 > / | ||
| - | if [[ -n " | ||
| - | # Enable net.ipv6.conf.all.forwarding for the system | ||
| - | echo " | ||
| - | # Enable without waiting for a reboot or service restart | ||
| - | echo 1 > / | ||
| - | fi | ||
| - | if systemctl is-active --quiet firewalld.service; | ||
| - | # Using both permanent and not permanent rules to avoid a firewalld | ||
| - | # reload. | ||
| - | # We don't use --add-service=openvpn because that would only work with | ||
| - | # the default port and protocol. | ||
| - | firewall-cmd --add-port=" | ||
| - | firewall-cmd --zone=trusted --add-source=10.8.0.0/ | ||
| - | firewall-cmd --permanent --add-port=" | ||
| - | firewall-cmd --permanent --zone=trusted --add-source=10.8.0.0/ | ||
| - | # Set NAT for the VPN subnet | ||
| - | firewall-cmd --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to " | ||
| - | firewall-cmd --permanent --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to " | ||
| - | if [[ -n " | ||
| - | firewall-cmd --zone=trusted --add-source=fddd: | ||
| - | firewall-cmd --permanent --zone=trusted --add-source=fddd: | ||
| - | firewall-cmd --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd: | ||
| - | firewall-cmd --permanent --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd: | ||
| - | fi | ||
| - | else | ||
| - | # Create a service to set up persistent iptables rules | ||
| - | iptables_path=$(command -v iptables) | ||
| - | ip6tables_path=$(command -v ip6tables) | ||
| - | # nf_tables is not available as standard in OVZ kernels. So use iptables-legacy | ||
| - | # if we are in OVZ, with a nf_tables backend and iptables-legacy is available. | ||
| - | if [[ $(systemd-detect-virt) == " | ||
| - | iptables_path=$(command -v iptables-legacy) | ||
| - | ip6tables_path=$(command -v ip6tables-legacy) | ||
| - | fi | ||
| - | echo " | ||
| - | Before=network.target | ||
| - | [Service] | ||
| - | Type=oneshot | ||
| - | ExecStart=$iptables_path -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip | ||
| - | ExecStart=$iptables_path -I INPUT -p $protocol --dport $port -j ACCEPT | ||
| - | ExecStart=$iptables_path -I FORWARD -s 10.8.0.0/24 -j ACCEPT | ||
| - | ExecStart=$iptables_path -I FORWARD -m state --state RELATED, | ||
| - | ExecStop=$iptables_path -t nat -D POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip | ||
| - | ExecStop=$iptables_path -D INPUT -p $protocol --dport $port -j ACCEPT | ||
| - | ExecStop=$iptables_path -D FORWARD -s 10.8.0.0/24 -j ACCEPT | ||
| - | ExecStop=$iptables_path -D FORWARD -m state --state RELATED, | ||
| - | if [[ -n " | ||
| - | echo " | ||
| - | ExecStart=$ip6tables_path -I FORWARD -s fddd: | ||
| - | ExecStart=$ip6tables_path -I FORWARD -m state --state RELATED, | ||
| - | ExecStop=$ip6tables_path -t nat -D POSTROUTING -s fddd: | ||
| - | ExecStop=$ip6tables_path -D FORWARD -s fddd: | ||
| - | ExecStop=$ip6tables_path -D FORWARD -m state --state RELATED, | ||
| - | fi | ||
| - | echo " | ||
| - | [Install] | ||
| - | WantedBy=multi-user.target" | ||
| - | systemctl enable --now openvpn-iptables.service | ||
| - | fi | ||
| - | # If SELinux is enabled and a custom port was selected, we need this | ||
| - | if sestatus 2>/ | ||
| - | # Install semanage if not already present | ||
| - | if ! hash semanage 2>/ | ||
| - | if [[ " | ||
| - | # Centos 7 | ||
| - | yum install -y policycoreutils-python | ||
| - | else | ||
| - | # CentOS 8 or Fedora | ||
| - | dnf install -y policycoreutils-python-utils | ||
| - | fi | ||
| - | fi | ||
| - | semanage port -a -t openvpn_port_t -p " | ||
| - | fi | ||
| - | # If the server is behind NAT, use the correct IP address | ||
| - | [[ -n " | ||
| - | # client-common.txt is created so we have a template to add further users later | ||
| - | echo " | ||
| - | dev tun | ||
| - | proto $protocol | ||
| - | remote $ip $port | ||
| - | resolv-retry infinite | ||
| - | nobind | ||
| - | persist-key | ||
| - | persist-tun | ||
| - | remote-cert-tls server | ||
| - | auth SHA512 | ||
| - | cipher AES-256-CBC | ||
| - | ignore-unknown-option block-outside-dns | ||
| - | block-outside-dns | ||
| - | verb 3" > / | ||
| - | # Enable and start the OpenVPN service | ||
| - | systemctl enable --now openvpn-server@server.service | ||
| - | # Generates the custom client.ovpn | ||
| - | new_client | ||
| - | echo | ||
| - | echo " | ||
| - | echo | ||
| - | echo "The client configuration is available in:" ~/" | ||
| - | echo "New clients can be added by running this script again." | ||
| - | else | ||
| - | clear | ||
| - | echo " | ||
| - | echo | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | echo " | ||
| - | read -p " | ||
| - | until [[ " | ||
| - | echo " | ||
| - | read -p " | ||
| - | done | ||
| - | case " | ||
| - | 1) | ||
| - | echo | ||
| - | echo " | ||
| - | read -p "Name: " unsanitized_client | ||
| - | client=$(sed ' | ||
| - | while [[ -z " | ||
| - | echo " | ||
| - | read -p "Name: " unsanitized_client | ||
| - | client=$(sed ' | ||
| - | done | ||
| - | cd / | ||
| - | EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full " | ||
| - | # Generates the custom client.ovpn | ||
| - | new_client | ||
| - | echo | ||
| - | echo " | ||
| - | exit | ||
| - | ;; | ||
| - | 2) | ||
| - | # This option could be documented a bit better and maybe even be simplified | ||
| - | # ...but what can I say, I want some sleep too | ||
| - | number_of_clients=$(tail -n +2 / | ||
| - | if [[ " | ||
| - | echo | ||
| - | echo "There are no existing clients!" | ||
| - | exit | ||
| - | fi | ||
| - | echo | ||
| - | echo " | ||
| - | tail -n +2 / | ||
| - | read -p " | ||
| - | until [[ " | ||
| - | echo " | ||
| - | read -p " | ||
| - | done | ||
| - | client=$(tail -n +2 / | ||
| - | echo | ||
| - | read -p " | ||
| - | until [[ " | ||
| - | echo " | ||
| - | read -p " | ||
| - | done | ||
| - | if [[ " | ||
| - | cd / | ||
| - | ./ | ||
| - | EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl | ||
| - | rm -f / | ||
| - | cp / | ||
| - | # CRL is read with each client connection, when OpenVPN is dropped to nobody | ||
| - | chown nobody:" | ||
| - | echo | ||
| - | echo " | ||
| - | else | ||
| - | echo | ||
| - | echo " | ||
| - | fi | ||
| - | exit | ||
| - | ;; | ||
| - | 3) | ||
| - | echo | ||
| - | read -p " | ||
| - | until [[ " | ||
| - | echo " | ||
| - | read -p " | ||
| - | done | ||
| - | if [[ " | ||
| - | port=$(grep '^port ' / | ||
| - | protocol=$(grep ' | ||
| - | if systemctl is-active --quiet firewalld.service; | ||
| - | ip=$(firewall-cmd --direct --get-rules ipv4 nat POSTROUTING | grep '\-s 10.8.0.0/24 '"'"' | ||
| - | # Using both permanent and not permanent rules to avoid a firewalld reload. | ||
| - | firewall-cmd --remove-port=" | ||
| - | firewall-cmd --zone=trusted --remove-source=10.8.0.0/ | ||
| - | firewall-cmd --permanent --remove-port=" | ||
| - | firewall-cmd --permanent --zone=trusted --remove-source=10.8.0.0/ | ||
| - | firewall-cmd --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to " | ||
| - | firewall-cmd --permanent --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to " | ||
| - | if grep -qs " | ||
| - | ip6=$(firewall-cmd --direct --get-rules ipv6 nat POSTROUTING | grep '\-s fddd: | ||
| - | firewall-cmd --zone=trusted --remove-source=fddd: | ||
| - | firewall-cmd --permanent --zone=trusted --remove-source=fddd: | ||
| - | firewall-cmd --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd: | ||
| - | firewall-cmd --permanent --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd: | ||
| - | fi | ||
| - | else | ||
| - | systemctl disable --now openvpn-iptables.service | ||
| - | rm -f / | ||
| - | fi | ||
| - | if sestatus 2>/ | ||
| - | semanage port -d -t openvpn_port_t -p " | ||
| - | fi | ||
| - | systemctl disable --now openvpn-server@server.service | ||
| - | rm -f / | ||
| - | rm -f / | ||
| - | if [[ " | ||
| - | rm -rf / | ||
| - | apt-get remove --purge -y openvpn | ||
| - | else | ||
| - | # Else, OS must be CentOS or Fedora | ||
| - | yum remove -y openvpn | ||
| - | rm -rf / | ||
| - | fi | ||
| - | echo | ||
| - | echo " | ||
| - | else | ||
| - | echo | ||
| - | echo " | ||
| - | fi | ||
| - | exit | ||
| - | ;; | ||
| - | 4) | ||
| - | exit | ||
| - | ;; | ||
| - | esac | ||
| - | fi'' | ||
linux/services/openvpn.1648325012.txt.gz · Последнее изменение: 2024/01/29 12:49 (внешнее изменение)