Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. All you need to do is provide your own VPN credentials, and let the scripts handle the rest.
An IPsec VPN encrypts your network traffic, so that nobody between you and the VPN server can eavesdrop on your data as it travels via the Internet. This is especially useful when using unsecured networks, e.g. at coffee shops, airports or hotel rooms.
A pre-built [Docker image](https://github.com/hwdsl2/docker-ipsec-vpn-server) is also available. For other installation options and client setup, read the sections below.
This also includes Linux VMs in public clouds, such as [DigitalOcean](https://blog.ls20.com/digitalocean), [Vultr](https://blog.ls20.com/vultr), [Linode](https://blog.ls20.com/linode), [Microsoft Azure](https://azure.microsoft.com) and [OVH](https://www.ovhcloud.com/en/vps/). [Amazon EC2](https://aws.amazon.com/ec2/) users can deploy rapidly using [CloudFormation](aws/README.md) or [user data](https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#vpnsetup).
[](aws/README.md) [](azure/README.md) [](http://dovpn.carlfriess.com/) [](https://cloud.linode.com/stackscripts/37239)
[**» I want to run my own VPN but don't have a server for that**](https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#gettingavps)
A pre-built [Docker image](https://github.com/hwdsl2/docker-ipsec-vpn-server) is also available. Advanced users can install on a [Raspberry Pi](https://www.raspberrypi.org). [[1]](https://elasticbyte.net/posts/setting-up-a-native-cisco-ipsec-vpn-server-using-a-raspberry-pi/) [[2]](https://www.stewright.me/2018/07/create-a-raspberry-pi-vpn-server-using-l2tpipsec/)
**Note:** If unable to download via `wget`, you may also open [vpnsetup.sh](vpnsetup.sh), then click the **`Raw`** button on the right. Press `Ctrl/Cmd + A` to select all, `Ctrl/Cmd + C` to copy, then paste into your favorite editor.
*Read this in other languages: [English](README.md#important-notes), [简体中文](README-zh.md#重要提示). Have a suggestion? [Send feedback](https://blog.ls20.com/vpnfeedback).*
**Windows users**: For IPsec/L2TP mode, a [one-time registry change](docs/clients.md#windows-error-809) is required if the VPN server or client is behind NAT (e.g. home router).
The same VPN account can be used by your multiple devices. However, due to an IPsec/L2TP limitation, if you wish to connect multiple devices simultaneously from behind the same NAT (e.g. home router), you must use [IKEv2](docs/ikev2-howto.md) or [IPsec/XAuth](docs/clients-xauth.md) mode.
For servers with an external firewall (e.g. [EC2](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html)/[GCE](https://cloud.google.com/vpc/docs/firewalls)), open UDP ports 500 and 4500 for the VPN. Aliyun users, see [#433](https://github.com/hwdsl2/setup-ipsec-vpn/issues/433).
Clients are set to use [Google Public DNS](https://developers.google.com/speed/public-dns/) when the VPN is active. If another DNS provider is preferred, you may [use alternative DNS servers](docs/advanced-usage.md).
Using kernel support could improve IPsec/L2TP performance. It is available on [all supported OS](#requirements). Ubuntu users should install the `linux-modules-extra-$(uname -r)` (or `linux-image-extra`) package and run `service xl2tpd restart`.
Use this one-liner to update [Libreswan](https://libreswan.org) ([changelog](https://github.com/libreswan/libreswan/blob/main/CHANGES) | [announce](https://lists.libreswan.org/mailman/listinfo/swan-announce)) on your VPN server. The latest supported version is `4.6`. Check installed version: `ipsec --version`.
- Got a question? Please first search [existing issues](https://github.com/hwdsl2/setup-ipsec-vpn/issues?q=is%3Aissue) and comments [in this Gist](https://gist.github.com/hwdsl2/9030462#comments) and [on my blog](https://blog.ls20.com/ipsec-l2tp-vpn-auto-setup-for-ubuntu-12-04-on-amazon-ec2/#disqus_thread).
- Ask VPN related questions on the [Libreswan](https://lists.libreswan.org/mailman/listinfo/swan) or [strongSwan](https://lists.strongswan.org/mailman/listinfo/users) mailing list, or read these wikis: [[1]](https://libreswan.org/wiki/Main_Page) [[2]](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-securing_virtual_private_networks) [[3]](https://wiki.strongswan.org/projects/strongswan/wiki/UserDocumentation) [[4]](https://wiki.gentoo.org/wiki/IPsec_L2TP_VPN_server) [[5]](https://wiki.archlinux.org/index.php/Openswan_L2TP/IPsec_VPN_client_setup).
Copyright (C) 2014-2022 [Lin Song](https://github.com/hwdsl2) [](https://www.linkedin.com/in/linsongui)
