This might be old news, but I am in Thailand (transparent proxy) and have been having bad signature problems since I started using Ubuntu, but the "apt-get update -o Acquire::http::No-Cache=True" command fixed it for me.
-- BADSIG errors on http proxies (transparent?) https://launchpad.net/bugs/33505 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
