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114 lines
7.6 KiB
Markdown
114 lines
7.6 KiB
Markdown
# IPsec/L2TP VPN Server Auto Setup Scripts
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Note: This repository was created from (and replaces) these GitHub Gists:
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- <a href="https://gist.github.com/hwdsl2/9030462/2aaaf443855de0275dad8a4e45bea523b5b0f966" target="_blank" rel="nofollow">gist.github.com/hwdsl2/9030462</a> (225 Stars, 88 Forks as of 01/18/2016)
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- <a href="https://gist.github.com/hwdsl2/e9a78a50e300d12ae195/5f68fb260c5c143e10d3cf6b3ce2c2f5426f7c1e" target="_blank" rel="nofollow">gist.github.com/hwdsl2/e9a78a50e300d12ae195</a> (10 Stars, 6 Forks)
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## Overview
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Scripts for automatic configuration of IPsec/L2TP VPN server on Ubuntu 14.04 & 12.04, Debian 8 and CentOS/RHEL 6 & 7. All you need to do is providing your own values for `IPSEC_PSK`, `VPN_USER` and `VPN_PASSWORD`, and they will handle the rest. These scripts can also be directly used as the Amazon EC2 "user-data" when creating a new instance.
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We will use <a href="https://libreswan.org/" target="_blank">Libreswan</a> as the IPsec server, and <a href="https://www.xelerance.com/services/software/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 usage instructions</a>
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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 the <a href="http://www.tcpipguide.com/free/t_IPSecEncapsulatingSecurityPayloadESP.htm" target="_blank">ESP protocol</a>
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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 14.04 & 12.04, Debian 8 and CentOS/RHEL 6 & 7
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## Requirements
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A newly created Amazon EC2 instance, using these AMIs: (See the link above for usage instructions)
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- <a href="http://cloud-images.ubuntu.com/trusty/current/" target="_blank">Ubuntu 14.04 (Trusty)</a> or <a href="http://cloud-images.ubuntu.com/precise/current/" target="_blank">12.04 (Precise)</a>
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- <a href="https://wiki.debian.org/Cloud/AmazonEC2Image/Jessie" 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 HVM</a>
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- <a href="https://aws.amazon.com/marketplace/pp/B00NQAYLWO" target="_blank">CentOS 6 (x86_64) with Updates HVM</a>
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**-OR-**
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A dedicated server or any KVM- or Xen-based Virtual Private Server (VPS), with these Linux OS:
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(Using the VPN scripts on a **freshly installed** system is recommended)
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- Ubuntu 14.04 (Trusty) or 12.04 (Precise)
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- Debian 8 (Jessie)
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- Debian 7 (Wheezy) - NOT recommended. Requires <a href="https://gist.github.com/hwdsl2/5a769b2c4436cdf02a90" target="_blank">this workaround</a> to work.
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- CentOS / Red Hat Enterprise Linux (RHEL) 6 or 7
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OpenVZ VPS users should instead use <a href="https://github.com/Nyr/openvpn-install" target="_blank">Nyr's OpenVPN script</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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##### DO NOT run these scripts on your PC or Mac! They are meant to be run on a dedicated server or VPS!
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## Installation
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### For Ubuntu and 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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```bash
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wget https://github.com/hwdsl2/setup-ipsec-vpn/raw/master/vpnsetup.sh -O vpnsetup.sh
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nano -w vpnsetup.sh
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[Edit and replace IPSEC_PSK, VPN_USER and VPN_PASSWORD with your own values]
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/bin/sh vpnsetup.sh
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```
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### For CentOS and RHEL:
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First, update your system with `yum update` and reboot. This is optional, but recommended.
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```bash
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yum -y install wget nano
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wget https://github.com/hwdsl2/setup-ipsec-vpn/raw/master/vpnsetup_centos.sh -O vpnsetup_centos.sh
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nano -w vpnsetup_centos.sh
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[Edit and replace IPSEC_PSK, VPN_USER and VPN_PASSWORD with your own values]
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/bin/sh vpnsetup_centos.sh
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```
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If unable to download via `wget`, you may open the VPN scripts above and click the `Raw` button on the right. 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 to use the VPN. Search the web for instructions, e.g. https://www.google.com/#q=setup+ipsec+l2tp+client
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Enjoy your very own VPN! :sparkles::tada::rocket::sparkles:
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## Important Notes
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To support multiple VPN users with different credentials, just <a href="https://gist.github.com/hwdsl2/123b886f29f4c689f531" target="_blank">edit a few lines</a> in the scripts.
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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).
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**Android 6 (Marshmallow) users**: Edit `/etc/ipsec.conf` and append `,aes256-sha2_256` to both `ike=` and `phase2alg=`. Also add a new line `sha2-truncbug=yes`. Must start lines with two spaces. Finally, run `service ipsec restart`. (<a href="https://libreswan.org/wiki/FAQ#Android_6.0_connection_comes_up_but_no_packet_flow" target="_blank">Ref</a>)
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**iPhone/iPad users**: In iOS settings, choose `L2TP` (instead of `IPSec`) for the VPN type. In case you're unable to connect, edit `ipsec.conf` and replace `rightprotoport=17/%any` with `rightprotoport=17/0`. Then restart `ipsec` service.
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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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If you configured a custom SSH port or wish to allow other services, edit the IPTables rules in the scripts before using.
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The scripts will backup your existing config files before making changes, to the same folder with `.old-date-time` suffix.
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## Upgrading Libreswan
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You may use `vpnupgrade_Libreswan.sh` (for Ubuntu/Debian) and `vpnupgrade_Libreswan_centos.sh` (for CentOS/RHEL) to upgrade <a href="https://libreswan.org/" target="_blank">Libreswan</a> to a newer version. Check and update the `SWAN_VER` variable on top of the scripts as necessary.
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## Bugs & Questions
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- Have a question? Please first read other people's comments <a href="https://gist.github.com/hwdsl2/9030462#comments" target="_blank">in this Gist</a> and <a href="https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#google_translate_element" target="_blank">on my blog</a>.
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- For Libreswan related questions, you may ask on the <a href="https://lists.libreswan.org/mailman/listinfo/swan" target="_blank">mailing list</a>, or check out the <a href="https://libreswan.org/wiki/Main_Page" target="_blank">official wiki</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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## Copyright and 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_profile_bluetxt_80x15.png" width="80" height="15" 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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