pfSense

When you go to IPsec advanced settings and change something there, you get this nifty logspam in system log

Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel lib -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel esp -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel tls -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel pts -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel imv -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel imc -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel enc -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel asn -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel net -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:54    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel knl -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:53    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel cfg -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:53    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel job -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:53    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel chd -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:53    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel ike -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:53    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel mgr -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''
Mar 14 19:35:53    php-fpm[19116]: /vpn_ipsec_settings.php: The command '/usr/local/sbin/ipsec stroke loglevel dmn -- -1' returned exit code '255', the output was 'connecting to 'unix:///var/run/charon.ctl' failed: No such file or directory failed to connect to stroke socket 'unix:///var/run/charon.ctl''

Latest 2.1.1 snapshot:

$ cat /etc/version.buildtime
Fri Mar 13 04:30:59 CDT 2015