On 02/18/2015 12:54 PM, Paul Smith wrote:
How should one configure the firewall in order to be able to connect
from my machine (Fedora 21) to another machine (MS Windows) via VPN
PPP? Perhaps, after some updates, the possibility of establishing such
a VPN PPP has become blocked by the firewall.
What type of VPN? Both PPTP and IPSec/L2TP use ppp. Neither should be
affected by stock firewall rules if the Fedora machine is initiating the
connection.
You should check /var/log/audit/audit.log (and/or "setenforce
permissive" and test again) for SELinux related errors. Otherwise,
probably /var/log/messages and /var/log/secure will have useful data.