> Why wasn't ntp available for them? How often does this happen in the wild?
this can happen when you have a remote station with temporally no reception. E.G. our station have a sanity check for the time and will not start if the date is not set manually. jm2c ________________________________________ Von: busybox [[email protected]] im Auftrag von Guillermo Rodriguez Garcia [[email protected]] Gesendet: Montag, 31. August 2020 09:53 An: Sergey Ponomarev Cc: busybox Betreff: Re: [PATCH 2/4] httpd: Don't add Date header to response Hi, El sáb., 29 ago. 2020 a las 21:37, Sergey Ponomarev (<[email protected]>) escribió: > > > I have seen clients set the local date from there when ntp was not > > available. > > I'm just curious, could you please provide more details. What was the type of > clients? Embedded devices or something else. Embedded devices. > Why wasn't ntp available for them? How often does this happen in the wild? Not sure. Some examples: https://www.snbforums.com/threads/ntp-blocked-alternatives-to-ntpd-for-updating-time.46541/page-3#post-404882 https://askubuntu.com/questions/1035525/set-date-and-time-from-http-header-in-router-with-curl-or-wget > Can clients fetch the date from some website on the internet? > Anyways this is a hack but if someone really needs and control webserver then > it they can use a CGI script: Well, that's the problem; this only works if you control *both* the server (so you can setup a script) and the client. But clients that you don't control may just assume that the Date header is present (since it is mandated by RFC2616) and disabling this would break them. Guillermo Rodriguez Garcia [email protected] _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
