- From: Willy Tarreau <w@1wt.eu>
- Date: Tue, 16 Aug 2011 07:58:00 +0200
- To: Mykyta Yevstifeyev <evnikita2@gmail.com>
- Cc: Mark Nottingham <mnot@mnot.net>, ietf-http-wg@w3.org
Hi Mukyta, On Tue, Aug 16, 2011 at 07:08:37AM +0300, Mykyta Yevstifeyev wrote: > Well, Wikipedia claims that such code may be useful as a "deterrent for > malware" (http://en.wikipedia.org/wiki/List_of_HTTP_status_codes), > giving no other information. I don't actually know how exactly it works > for this reason, but I suspect that when the origin server has detected > that it is infected by some malware, and its policy is to immediately > disconnect from the Net, and, respectively, all UAs connected, it will > choose to close the connection by 444 response, giving no other > information. In other words, 444 is useful in the case of "emergency", > when something happens to server. Well, then it should be a 5xx, not a 4xx, as the problem is not related to the client's request but to the server's operational condition. Probably that this 444 was randomly picked as handful at that time without much preliminary thinking. I observe that 4xx and 5xx are often mixed in field and that's pretty concerning, because it makes troubleshooting much more complicated. Regards, Willy
Received on Tuesday, 16 August 2011 05:58:42 UTC