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138 lines
8.6 KiB
Markdown
138 lines
8.6 KiB
Markdown
# IPsec/L2TP VPN Server Auto Setup Scripts <a href="https://travis-ci.org/hwdsl2/setup-ipsec-vpn"><img align="right" src="https://travis-ci.org/hwdsl2/setup-ipsec-vpn.svg?branch=master" alt="Build status" /></a>
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*Read this in other languages: [English](README.md), [简体中文](README-zh.md).*
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With these scripts, you can set up your own IPsec/L2TP VPN server in just a few minutes on Ubuntu, Debian and CentOS. All you need to do is provide your own VPN credentials. The scripts will handle the rest.
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We will use <a href="https://libreswan.org/" target="_blank">Libreswan</a> as the IPsec server, and <a href="https://github.com/xelerance/xl2tpd" target="_blank">xl2tpd</a> as the L2TP provider.
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#### <a href="https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/" target="_blank">Link to my VPN tutorial with detailed instructions</a>
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## Table of Contents
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- [Features](#features)
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- [Requirements](#requirements)
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- [Installation](#installation)
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- [Ubuntu & Debian](#ubuntu--debian)
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- [CentOS & RHEL](#centos--rhel)
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- [Next Steps](#next-steps)
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- [Important Notes](#important-notes)
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- [Upgrading Libreswan](#upgrading-libreswan)
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- [Bugs & Questions](#bugs--questions)
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- [Author](#author)
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- [License](#license)
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## Features
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- Fully automated IPsec/L2TP VPN server setup, no user input needed
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- Encapsulates all VPN traffic in UDP - does not need ESP protocol
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- Can be directly used as "user-data" for a new Amazon EC2 instance
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- Automatically determines public IP and private IP of server
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- Includes basic IPTables rules and `sysctl.conf` settings
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- Tested with Ubuntu 16.04/14.04/12.04, Debian 8 and CentOS 6 & 7
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## Requirements
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A newly created <a href="https://aws.amazon.com/ec2/" target="_blank">Amazon EC2</a> instance, using these AMIs: (See <a href="https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#vpnsetup" target="_blank">instructions</a>)
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- <a href="https://cloud-images.ubuntu.com/locator/" target="_blank">Ubuntu 16.04 (Xenial), 14.04 (Trusty) or 12.04 (Precise)</a>
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- <a href="https://wiki.debian.org/Cloud/AmazonEC2Image" target="_blank">Debian 8 (Jessie) EC2 Images</a>
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- <a href="https://aws.amazon.com/marketplace/pp/B00O7WM7QW" target="_blank">CentOS 7 (x86_64) with Updates</a>
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- <a href="https://aws.amazon.com/marketplace/pp/B00NQAYLWO" target="_blank">CentOS 6 (x86_64) with Updates</a>
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**-OR-**
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A dedicated server or KVM/Xen-based Virtual Private Server (VPS), freshly installed with one of the above OS. In addition, Debian 7 (Wheezy) can also be used after applying <a href="extras/vpnsetup-debian-7-workaround.sh" target="_blank">this workaround</a>. OpenVZ VPS users should instead try <a href="https://github.com/Nyr/openvpn-install" target="_blank">OpenVPN</a>.
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<a href="https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#gettingavps" target="_blank">**» I want to run my own VPN but don't have a server for that**</a>
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:warning: **DO NOT** run these scripts on your PC or Mac! They should only be used on a server!
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## Installation
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### Ubuntu & Debian
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First, update your system with `apt-get update && apt-get dist-upgrade` and reboot. This is optional, but recommended.
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**Option 1:** Have the script generate random VPN credentials for you (will be displayed when done):
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```bash
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wget https://git.io/vpnsetup -O vpnsetup.sh && sudo sh vpnsetup.sh
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```
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**Option 2:** Alternatively, enter your own VPN credentials in the script:
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```bash
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wget https://git.io/vpnsetup -O vpnsetup.sh
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nano -w vpnsetup.sh
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[Replace with your own values: IPSEC_PSK, VPN_USER and VPN_PASSWORD]
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sudo sh vpnsetup.sh
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```
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### CentOS & RHEL
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First, update your system with `yum update` and reboot. This is optional, but recommended.
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**Option 1:** Have the script generate random VPN credentials for you (will be displayed when done):
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```bash
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wget https://git.io/vpnsetup-centos -O vpnsetup_centos.sh && sudo sh vpnsetup_centos.sh
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```
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**Option 2:** Alternatively, enter your own VPN credentials in the script:
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```bash
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wget https://git.io/vpnsetup-centos -O vpnsetup_centos.sh
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nano -w vpnsetup_centos.sh
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[Replace with your own values: IPSEC_PSK, VPN_USER and VPN_PASSWORD]
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sudo sh vpnsetup_centos.sh
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```
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If unable to download via `wget`, you may alternatively open <a href="vpnsetup.sh" target="_blank">vpnsetup.sh</a> (or <a href="vpnsetup_centos.sh" target="_blank">vpnsetup_centos.sh</a>) and click the **`Raw`** button. Press `Ctrl-A` to select all, `Ctrl-C` to copy, then paste into your favorite editor.
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## Next Steps
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Get your computer or device to use the VPN. Please see: <a href="docs/clients.md" target="_blank">Configure IPsec/L2TP VPN Clients</a>.
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Enjoy your very own VPN! :sparkles::tada::rocket::sparkles:
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## Important Notes
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For **Windows users**, a <a href="https://documentation.meraki.com/MX-Z/Client_VPN/Troubleshooting_Client_VPN#Windows_Error_809" target="_blank">one-time registry change</a> is required if the VPN server and/or client is behind NAT (e.g. home router). In case you see `Error 628`, go to <a href="https://github.com/hwdsl2/setup-ipsec-vpn/issues/7#issuecomment-210084875" target="_blank">the "Security" tab</a> of VPN connection properties, enable `CHAP` and disable `MS-CHAP v2`.
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**Android 6 (Marshmallow) users**: Edit `/etc/ipsec.conf` and append `,aes256-sha2_256` to both `ike=` and `phase2alg=`. Then <a href="https://libreswan.org/wiki/FAQ#Android_6.0_connection_comes_up_but_no_packet_flow" target="_blank">add a new line</a> `sha2-truncbug=yes`. Indent lines with two spaces. Finally, run `service ipsec restart`.
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**iPhone/iPad users**: In iOS settings, choose `L2TP` (instead of `IPSec`) as the VPN type.
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To enable multiple VPN users with different credentials, just <a href="docs/enable-multiple-users.txt" target="_blank">edit a few lines</a> in the scripts.
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Clients are configured to use <a href="https://developers.google.com/speed/public-dns/" target="_blank">Google Public DNS</a> when the VPN is active. To change, set `ms-dns` in `options.xl2tpd`.
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For servers with a custom SSH port (not 22) or other services, edit the <a href="vpnsetup.sh#L298" target="_blank">IPTables rules</a> before using.
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The scripts will backup existing config files before making changes, with `.old-date-time` suffix.
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## Upgrading Libreswan
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The additional scripts <a href="extras/vpnupgrade_Libreswan.sh" target="_blank">vpnupgrade_Libreswan.sh</a> and <a href="extras/vpnupgrade_Libreswan_centos.sh" target="_blank">vpnupgrade_Libreswan_centos.sh</a> can be used to periodically upgrade Libreswan to the latest version. Check the <a href="https://libreswan.org" target="_blank">official website</a> and update the `SWAN_VER` variable as necessary.
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## Bugs & Questions
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- Got a question? Please first search other people's comments <a href="https://gist.github.com/hwdsl2/9030462#comments" target="_blank">in this GitHub Gist</a> and <a href="https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#disqus_thread" target="_blank">on my blog</a>.
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- Ask Libreswan (IPsec) related questions <a href="https://lists.libreswan.org/mailman/listinfo/swan" target="_blank">on the mailing list</a>, or read these wikis: <a href="https://libreswan.org/wiki/Main_Page" target="_blank">[1]</a> <a href="https://wiki.gentoo.org/wiki/IPsec_L2TP_VPN_server" target="_blank">[2]</a> <a href="https://wiki.archlinux.org/index.php/L2TP/IPsec_VPN_client_setup" target="_blank">[3]</a> <a href="https://help.ubuntu.com/community/L2TPServer" target="_blank">[4]</a> <a href="https://wiki.strongswan.org/projects/strongswan/wiki/UserDocumentation" target="_blank">[5]</a>.
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- If you found a reproducible bug, open a <a href="https://github.com/hwdsl2/setup-ipsec-vpn/issues" target="_blank">GitHub Issue</a> to submit a bug report.
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## Author
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##### Lin Song
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- Final year U.S. PhD candidate, majoring in Electrical and Computer Engineering (ECE)
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- Actively seeking opportunities in areas such as Software or Systems Engineering
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- Contact me on LinkedIn: <a href="https://www.linkedin.com/in/linsongui" target="_blank">https://www.linkedin.com/in/linsongui</a>
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## License
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Copyright (C) 2014-2016 Lin Song <a href="https://www.linkedin.com/in/linsongui" target="_blank"><img src="https://static.licdn.com/scds/common/u/img/webpromo/btn_viewmy_160x25.png" width="160" height="25" border="0" alt="View my profile on LinkedIn"></a>
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Based on <a href="https://github.com/sarfata/voodooprivacy" target="_blank">the work of Thomas Sarlandie</a> (Copyright 2012)
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This work is licensed under the <a href="http://creativecommons.org/licenses/by-sa/3.0/" target="_blank">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>
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Attribution required: please include my name in any derivative and let me know how you have improved it!
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