Re: check_http fails to redirect to secure sites

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On 12-02-23 11:28 PM, Frank Bulk wrote:
>
> Starting this morning two of the sites I monitor failed,
> www.sprint.net <http://www.sprint.net> and www.sprintv6.net
> <http://www.sprintv6.net>. After some testing it?s become clear to
> me that check_http doesn?t currently redirect to secure sites, even
> with the use of the '-f follow' command. I guess Sprint turned on
> redirection to the secure version this morning.
>
> Not sure whether to call this a bug or working-as-designed, but I?m
> request the follow feature be enhanced to allow redirection to the
> secure version of host.
>
> I'm running check_http version 1.4.15.
>
> Here's a copy of my tests:
>
> ==============================================================================
>
>
>
nagios:/etc/nagios3#
>
> nagios:/etc/nagios3# /usr/lib/nagios/plugins/check_http -H
> www.sprint.net <http://www.sprint.net> -4
>
> CRITICAL - Socket timeout after 10 seconds
>
> nagios:/etc/nagios3#
>

This actually has to do with www.sprint.net not honoring the
"Connection: close" header and leaving the socket open. check_http
currently doesn't rely on the "Content-Length:" header to determine
when the request is complete, it rather insert a "Connection: close"
header in the request and wait for the remote server to close the
socket - if the remote leaves the connection open check_http times out.

So that could be a feature request - however there is so few
devices/webservers working this way that I'm wondering if it's even
valid according to the RFC's - I'd have to check.

Thanks

- -- 
Thomas
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