Secure Communications with OpenVPN on Ubuntu 12.04
Create the /etc/openvpn/upvpn script: Source based routing for specific client added in up script route-noexec # script-security 2 needed to run up and down scripts script-security 2 # Script to run after successful TUN/TAP device open up /etc/openvpn/upvpn # Call down script before to close TUN to properly remove the routing down-pre down Changelog for OpenVPN 2.1 | OpenVPN 2008.11.16 -- Version 2.1_rc14 * Added AC_GNU_SOURCE to configure.ac to enable struct ucred, with the goal of fixing a build issue on Fedora 9 that was introduced in 2.1_rc13. * Added additional method parameter to --script-security to preserve backward compatibility with system() call semantics used in OpenVPN 2.1_rc8 and earlier. script-security 1 - OpenVPN Support Forum Dec 04, 2019 "script-security 3" instead of 2? | Netgate Forum 2 -- Allow calling of built-in executables and user-defined scripts. 3 -- Allow passwords to be passed to scripts via environmental variables (potentially unsafe). I assume pfSense uses a >1 level because it also has an –up command in there (i.e., a script).
02-05-2009 17:27:43 Daemon.Warning 192.168.100.101 openvpn: openvpn_execve: external program may not be called unless '--script-security 2' or higher is enabled. Use '--script-security 3 system' for backward compatibility with 2.1_rc8 and earlier. See --help text or man page for<010>
2 -- Allow calling of built-in executables and user-defined scripts. 3 -- Allow passwords to be passed to scripts via environmental variables (potentially unsafe). I assume pfSense uses a >1 level because it also has an –up command in there (i.e., a script).
script-security 2 system then the new systemd unit files (ie openvpn-server and openvpn-client) not working. ie if i move all th config file from /etc/openvpn to /etc/openvpn/server then the server fail to start. and still not found any other solution then move back the config files. i open a bugzilla:
Pushing-DNS-to-clients – OpenVPN Community Mar 31, 2019 16 tips on OpenVPN security · blog.g3rt.nl Verify the X.509 subject name. In the client configuration, verify the server certificate subject string. … DD-WRT OpenVPN Setup with setup script | hide.me VPN …