-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi Mikhail,
What follows is an educated guess, but only a guess... Mikhail Morfikov via Gnupg-users <[email protected]> wrote: > gpg wants to connect to the network, but it looks like it wants > also TCP/993 (IMAPS). This happens when I use Thunderbird as a > mail clinet + Enigmail extension, which make some use of gpg. ... > doesn't show anything that points to gpg. When I prevent gpg > from connecting to this port, I can't access my mail account in > Thunderbird -- it just tries to refresh the inbox, but it just > stalls. When I restart Thunderbird at this point, then > everything backs to normal, and I don't see any drops in OUTPUT > traffic. Could anyone explain what's going on here? The way processes are spawned on Unix, fork()/exec() will by default inherit open file descriptors. Thunderbird/Enigmail will fork()/exec() to launch gpg. Each active TCP/IP connection has an open file descriptor. So, if Enigmail's gpg launcher hasn't taken care to close unneeded file descriptors after fork() and before exec(), gpg will inherit the connections Thunderbird had open at the time of invocation. Since gpg doesn't actually know anything about these connections, it likely won't close them, they'll stay open (potentially even after Thunderbird has closed them, although that doesn't match all the symptoms you've described). If your firewall then sends RST packets to close connections which gpg isn't supposed to be making, it will actually be shutting down the connections Thunderbird was using and you won't be able to access your mail. (This scenario matches what you have described, but I haven't reproduced your problem to verify it is indeed the case.) Hope this helps! - Bjarni - -- PageKite.net lets your personal computer be part of the web -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEETBSz4pzXkOHlSFMhjgA3FgDPlJEFAl2wUdYACgkQjgA3FgDP lJH11ggAk3SujXyDYqzLdDkbDksZwkdZEE5fhMPfukMGrs6/N2L08yzUxKYTx9v4 QdTY5BmUVl2sG21eUY+y90Y0YK3lpHJNrfe9Rrw5QnHXjB4B1fuzQCuUfwVv3YGt kHtj95clWgHsWWqIh5AWnt4LDk4inZ6+SVhj0k49eyea3GIelL/iJxxQ9wFjbPVY sbxiUP83qtTgKDVW98rneVS8mgJ6/d0Qf+RQFRmR3E+6RYPDo0FoNhpKGodTN4BO Ph+GuwuHBu0o7cjxdsgNdFY8v1GgcpQOtJ9gbZs5ysBeG4nrejxwK1EFbiAh+YX/ cZTfoE7/g0PJ877299r5C1uPAUTXHg== =5yoS -----END PGP SIGNATURE-----
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