4 ms·
I just tried tcpdump of http vs https, and both had the flag unset :/ (As I'd expect) Would have been nice if the OP had included some example logs showing the
by axod 17y ago
I just tried tcpdump of http vs https, and both had the flag unset :/ (As I'd expect)
Would have been nice if the OP had included some example logs showing the issue.
- mmaunder 17y agoHi axod, on request from a commenter on my blog I've described how I captured packets and analyzed. I'm interested that you saw the DF flag for non-HTTP traffic. Can you tell me which OS and client or browser you used? I used Ubuntu 9.04 and curl, but have seen the same df/non-df behavior with a variety of other clients on the same OS. Mark.
- axod 17y agoOK perhaps I'm confused... Using firefox, on OSX, tcpdump. HTTP request - flag set HTTP response - flag not set HTTPS request - flag set HTTPS response - flag not set
- mmaunder 17y agoHi axod, I retested on OSX and Linux and same result. (I'm running Snow Leopard) I tested secure connection to https://help.ubuntu.com/ https://help.ubuntu.com/ and the data packets have the DF flag on both OS's. I tested insecure to www.ebay.com and the data packets have no DF flag. Make sure you ignore the first few packets that are setting up the connection because those will probably have the DF flag set both ways. Only check the packets further down about halfway through the connection - you can tell the data packets by their size. Mark.
- n-named 17y agoPlease don't sign your messages, this is discussed in the site guidelines: http://ycombinator.com/newsguidelines.html http://ycombinator.com/newsguidelines.html """Please don't sign comments, especially with your url. They're already signed with your username. If other users want to learn more about you, they can click on it to see your profile."""
- blasdel 17y agoYou don't need to greet the user you're replying to, and you sure as hell shouldn't sign your comments.
- ComputerGuru 17y agoYeah, but you don't need to be so harsh about it..