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I just try it again and notice that i forgot to add `-r` flag to rm without this flag: ``` rm: cannot remove ‘/etc/ipsec.d/cacerts’: Directory not empty rm: cannot remove ‘/etc/ipsec.d/certs’: Directory not empty rm: cannot remove ‘/etc/ipsec.d/examples’: Directory not empty rm: cannot remove ‘/etc/ipsec.d/policies’: Directory not empty rm: cannot remove ‘/etc/ipsec.d/private’: Directory not empty ``` Also fix markup - set bold instead italic for more attention
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Uninstall the VPN
Read this in other languages: English, 简体中文.
Follow these steps to remove the VPN. Commands must be run as root, or with sudo.
Steps
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.
If using IPv6, also edit /etc/ip6tables.rules and/or /etc/iptables/rules.v6.
CentOS/RHEL
Edit /etc/sysconfig/iptables and remove unneeded rules.
If using IPv6, also edit /etc/sysconfig/ip6tables.
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, except exit 0 (if any).
Optional
Remove these config files:
- /etc/ipsec.conf
- /etc/ipsec.secrets
- /etc/xl2tpd/xl2tpd.conf
- /etc/ppp/options.xl2tpd
- /etc/ppp/chap-secrets
- /etc/ipsec.d/*
- /etc/pam.d/pluto
- /etc/sysconfig/pluto
Copy and paste for fast removal:
rm -rf /etc/ipsec.conf /etc/ipsec.secrets /etc/xl2tpd/xl2tpd.conf /etc/ppp/options.xl2tpd /etc/ppp/chap-secrets /etc/ipsec.d/* /etc/pam.d/pluto /etc/sysconfig/pluto
Remove Libreswan source directory:
rm -rf /opt/src/libreswan-*
When finished
Reboot your server.