[Xymon] Xymon and Lighttpd 500 Internal Error

Guy patterson at nullamatix.com
Wed Sep 4 13:15:28 CEST 2019


On Thu, Aug 29, 2019 at 2:15 PM Guy <patterson at nullamatix.com> wrote:
>
> Hello,
>
> The Xymon index page is loading; however, when I attempt to drill down
> into an individual service check (invoking svcstatus.sh), lighttpd
> returns a 500 internal server error.
>

Someone from the Lighttpd support forums responded with the following:
"It appears that the CGI is not returning any output, which is an
invalid CGI/1.1 response. lighttpd is receiving POLLHUP on the pipe
and cleaning up the CGI. Perhaps you forgot to flush output in the
script?"

Here's the thread:
https://redmine.lighttpd.net/boards/2/topics/8703?r=8705#message-8705

If I create /var/www/html/hello-world.sh and run it, it works as expected.

> OS: Devuan Ascii 2.0
> Kernel: Linux pihole 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u5
> (2019-08-11) x86_64 GNU/Linux
> Lighttpd: Version: 1.4.45-1
> Xymon: Version: 4.3.28-2
>
> Xymon and lighttpd were both installed from the official Devuan repos
> using apt-get.
>
> Here's my lighttpd config: https://clbin.com/F2LzF
> Here's an strace: https://clbin.com/EuesM
>
> Thanks,
>
> Guy


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