FYI. They upstream keyserver has been fixed. [rt.ubuntu.com #21348] → curl -v keyserver.ubuntu.com * About to connect() to keyserver.ubuntu.com port 80 (#0) * Trying 91.189.89.49... * connected * Connected to keyserver.ubuntu.com (91.189.89.49) port 80 (#0) > GET / HTTP/1.1 > User-Agent: curl/7.24.0 (x86_64-apple-darwin12.0) libcurl/7.24.0 > OpenSSL/0.9.8r zlib/1.2.5 > Host: keyserver.ubuntu.com > Accept: */* > * HTTP 1.0, assume close after body < HTTP/1.0 200 OK < Date: Wed, 10 Apr 2013 12:55:18 GMT < Server: sks_www/1.1.4 < Cache-Control: no-cache < Pragma: no-cache < Expires: 0 < Content-Length: 1417 < Content-Type: text/html; charset=UTF-8 < X-Cache: MISS from boquila.canonical.com < X-Cache-Lookup: MISS from boquila.canonical.com:11371 < Via: 1.0 boquila.canonical.com (squid/3.1.19) * HTTP/1.0 connection set to keep alive! < Connection: keep-alive -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Local-Squid-to-Reverse-Squid-to-keyserver-ubuntu-com-tp4659400p4659469.html Sent from the Squid - Users mailing list archive at Nabble.com.