>> Why is this a Cygwin question? A firewall is a firewall. Network >> applications, both Cygwin and non-Cygwin, have to deal with it. I don't >> know what a Cygwin-hostile firewall would look like. > > Cygwin uses sockets to implement many of its functions, such as IPC. > Some overzealous firewalls install themselves deeply into the winsock > stack (I believe it's called 'layered service provider' API) and install > hooks throughout. This can cause things to break if the firewall > implementation is not done properly and without bugs, or causes the > semantics of socket operations to change. See for example, the threads > about crappy VPN clients causing cygwin programs to hang, or the > Zonealarm firewall causing the X11 server to hang at startup. Sadly the > archives are littered with examples of poorly written firewall-type > software that causes things to break, so it's not such a stupid > question.
OK, thanks. Learn something new every day. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
