setup-ipsec-vpn/docs/uninstall.md

# Uninstall the VPN

*Read this in other languages: [English](uninstall.md), [简体中文](uninstall-zh.md).*

Follow these steps to remove the VPN. Commands must be run as `root`, or with `sudo`.

## Steps

* [First step](#first-step)
* [Second step](#second-step)
* [Third step](#third-step)
* [Fourth step](#fourth-step)
* [Optional](#optional)
* [When finished](#when-finished)

## First step

```
service ipsec stop
service xl2tpd stop
rm -rf /usr/local/sbin/ipsec /usr/local/libexec/ipsec
rm -f /etc/init.d/ipsec /lib/systemd/system/ipsec.service
```

## Second step

### Ubuntu/Debian

`apt-get remove xl2tpd`

### CentOS/RHEL

`yum remove xl2tpd`

## Third step

### Ubuntu/Debian

Edit `/etc/iptables.rules` and remove unneeded rules.   
Your original rules (if any) are backed up as `/etc/iptables.rules.old-date-time`.   
In addition, edit `/etc/iptables/rules.v4` if the file exists.   

### CentOS/RHEL

Edit `/etc/sysconfig/iptables` and remove unneeded rules.   
Your original rules (if any) are backed up as `/etc/sysconfig/iptables.old-date-time`.   

## Fourth step

Edit `/etc/sysctl.conf` and remove the lines after `# Added by hwdsl2 VPN script`.   
Edit `/etc/rc.local` and remove the lines after `# Added by hwdsl2 VPN script`. DO NOT remove `exit 0` (if any).

## Optional

Note: This step is optional.

Remove these config files:

* /etc/ipsec.conf
* /etc/ipsec.secrets
* /etc/xl2tpd/xl2tpd.conf
* /etc/ppp/options.xl2tpd
* /etc/ppp/chap-secrets
* /etc/pam.d/pluto
* /etc/sysconfig/pluto
* /etc/ipsec.d (directory)

Copy and paste for fast removal:

```
rm -f /etc/ipsec.conf /etc/ipsec.secrets /etc/xl2tpd/xl2tpd.conf /etc/ppp/options.xl2tpd \
      /etc/ppp/chap-secrets /etc/pam.d/pluto /etc/sysconfig/pluto
rm -rf /etc/ipsec.d
```

## When finished

Reboot your server.