Lighttpd

The include keyword in the configuration file includes a file.

Please carefully read How to get support and also the documentation for mod_cgi

Hello
Sorry for my inattention.Here is the return of the commands that I should have given first.
Really sorry for my oversight.
I read the mod_cgi documentation a little more intensively. I'll see if I can do it.

# lighttpd -tt -f /etc/lighttpd/lighttpd.conf
# lighttpd -p -f /etc/lighttpd/lighttpd.conf
config {
    var.CWD                        = "/var/www" 
    var.PID                        = 68
    var.logs                       = "/var/log/lighttpd/" 
    var.documents_root             = "/var/www/nut/" 
    var.conf_dir                   = "/etc/lighttpd/conf.d/" 
    var.socket_dir                 = "/var/www/socket/" 
    server.pid-file                = "/run/lighttpd.pid" 
    server.username                = "lighttpd" 
    server.groupname               = "lighttpd" 
    server.port                    = 80
    server.feature-flags           = (
        "server.graceful-shutdown-timeout" => 5,
    )
    server.document-root           = "/var/www/nut/" 
    debug.log-request-handling     = "enable" 
    server.max-read-idle           = 60
    accesslog.format               = "%h %V %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" 
    server.errorlog                = "/var/log/lighttpd/error.log" 
    accesslog.filename             = "/var/log/lighttpd/access.log" 
    server.event-handler           = "epoll" 
    server.listen-backlog          = 128
    server.stat-cache-engine       = "simple" 
    server.max-keep-alive-idle     = 5
    server.max-connections         = 256
    server.max-keep-alive-requests = 10
    server.max-request-size        = 256
    cgi.assign                     = (
        ".pl"  => "/usr/bin/perl",
        ".cgi" => "",
        ".rb"  => "/usr/bin/ruby",
        ".erb" => "/usr/bin/eruby",
        ".py"  => "/usr/bin/python",
    )
    fastcgi.server                 = (
        ".php" => (
            "php-local" => (
                "socket"                => "/tmp/lighttpd/php.socket",
                "bin-path"              => "/usr/bin/php-cgi82",
                "max-procs"             => 1,
                "broken-scriptfilename" => "enable",
                "bin-environment"       => (
                    "PHP_FCGI_CHILDREN"     => "4",
                    "PHP_FCGI_MAX_REQUESTS" => "10000",
                ),
                "bin-copy-environment"  => ("PATH", "SHELL", "USER"),
            ),
        ),
    )
    server.modules                 = (
        "mod_accesslog",
        "mod_cgi",
        "mod_fastcgi",
        "mod_compress",
        "mod_expire",
        "mod_access",
        "mod_rewrite",
        "mod_alias",
    )
    mimetype.assign                = (
 mimetype.assign             = (
  ".svg"          =>      "image/svg+xml",
  ".svgz"         =>      "image/svg+xml",
  ".pdf"          =>      "application/pdf",
  ".sig"          =>      "application/pgp-signature",
  ".spl"          =>      "application/futuresplash",
  ".class"        =>      "application/octet-stream",
  ".ps"           =>      "application/postscript",
  ".torrent"      =>      "application/x-bittorrent",
  ".dvi"          =>      "application/x-dvi",
  ".gz"           =>      "application/x-gzip",
  ".pac"          =>      "application/x-ns-proxy-autoconfig",
  ".swf"          =>      "application/x-shockwave-flash",
  ".tar.gz"       =>      "application/x-tgz",
  ".tgz"          =>      "application/x-tgz",
  ".tar"          =>      "application/x-tar",
  ".zip"          =>      "application/zip",
  ".dmg"          =>      "application/x-apple-diskimage",
  ".mp3"          =>      "audio/mpeg",
  ".m3u"          =>      "audio/x-mpegurl",
  ".wma"          =>      "audio/x-ms-wma",
  ".wax"          =>      "audio/x-ms-wax",
  ".ogg"          =>      "application/ogg",
  ".wav"          =>      "audio/x-wav",
  ".gif"          =>      "image/gif",
  ".jpg"          =>      "image/jpeg",
  ".jpeg"         =>      "image/jpeg",
  ".png"          =>      "image/png",
  ".xbm"          =>      "image/x-xbitmap",
  ".xpm"          =>      "image/x-xpixmap",
  ".xwd"          =>      "image/x-xwindowdump",
  ".css"          =>      "text/css",
  ".html"         =>      "text/html",
  ".htm"          =>      "text/html",
  ".js"           =>      "text/javascript",
  ".asc"          =>      "text/plain",
  ".c"            =>      "text/plain",
  ".h"            =>      "text/plain",
  ".cc"           =>      "text/plain",
   ".cpp"          =>      "text/plain",
  ".hh"           =>      "text/plain",
  ".hpp"          =>      "text/plain",
  ".conf"         =>      "text/plain",
  ".log"          =>      "text/plain",
  ".text"         =>      "text/plain",
  ".txt"          =>      "text/plain",
  ".diff"         =>      "text/plain",
  ".patch"        =>      "text/plain",
  ".ebuild"       =>      "text/plain",
  ".eclass"       =>      "text/plain",
  ".rtf"          =>      "application/rtf",
  ".bmp"          =>      "image/bmp",
  ".tif"          =>      "image/tiff",
  ".tiff"         =>      "image/tiff",
  ".ico"          =>      "image/x-icon",
  ".dtd"          =>      "text/xml",
  ".xml"          =>      "text/xml",
  ".mpeg"         =>      "video/mpeg",
  ".mpg"          =>      "video/mpeg",
  ".mov"          =>      "video/quicktime",
  ".qt"           =>      "video/quicktime",
  ".avi"          =>      "video/x-msvideo",
  ".asf"          =>      "video/x-ms-asf",
  ".asx"          =>      "video/x-ms-asf",
  ".wmv"          =>      "video/x-ms-wmv",
  ".bz2"          =>      "application/x-bzip",
  ".tbz"          =>      "application/x-bzip-compressed-tar",
  ".tar.bz2"      =>      "application/x-bzip-compressed-tar" 
    )
    index-file.names               = ("index.xhtml", "index.html", "index.htm", "default.htm", "index.php")
    url.rewrite                    = (
        "^(/|index.html)?$" => "/upsstats.html",
    )
    alias.url                      = (
        "/cgi-bin/nut/" => "/usr/share/webapps/apcupsd/",
    )
    server.follow-symlink          = "disable" 

    if $HTTP["url"] =~ "/(\.|_)ht" {
        # block 1
        url.access-deny = ("")

    } # end of $HTTP["url"] =~ "/(\.|_)ht" 

    if $HTTP["url"] =~ "^/(bin|data|inc|conf)/" {
        # block 2
        url.access-deny = ("")

    } # end of $HTTP["url"] =~ "^/(bin|data|inc|conf)/" 
}

The logs indicate that the script is read, but not interpreted.

You've shared no details related to this. You shared the request to /upsstats.html in your initial post, but nothing further.

A test on a page with a call to the script causes the script to be downloaded rather than executed.

I am not clairvoyant. I do not read minds and I don't run your specific application (nut). BE SPECIFIC, not vague. What is the script requesting? /cgi-bin/nut/upsstats.cgi ? Do you see that in your access log? (or in the error log with DebugVariables enabled?) I don't see that in any of the information your shared.

strace of the lighttpd executable while making the request might add some information useful to debugging.

This repetition looks like a typo or mistake with cut-n-paste.

    mimetype.assign                = (
 mimetype.assign             = (

If you're running lighttpd 1.4.76 (which you indicated), you can use lighttpd built-in default values for mimetype.assign by commenting out or removing that from your config.

Thank you for your answers.

    mimetype.assign                = (
 mimetype.assign             = (

# lighttpd -t -f /etc/lighttpd/lighttpd.conf
Syntax OK

I have attached a screenshot of part of the html page.
Or we see that the cgi file is not interpreted. I'm in a vnc client, I can only take screenshots, sorry.

But I just did a test:
If I create a directory /var/www/nut/cgi/ and place hello.cgi in it, everything works.
If I copy to hello.cgi in /usr/share/webapps/apcupsd/ or in /usr/share/webapps/apcupsd/cgi/ the file is no longer found.

Cgi files are not in a xxx/cgi/ tree
And on the html page, the file is just called like this:

@TEMPC@
@UPSSTATSPATH upsstats.cgi@
@UPSIMAGEPATH upsimage.cgi@

So I need to manage this with the aliases, but I don't see how.

Thank you so much

You shared this

    alias.url                      = (
        "/cgi-bin/nut/" => "/usr/share/webapps/apcupsd/",
    )

and you still have not answered my direct and precise question other than "no":

BE SPECIFIC, not vague. What is the script requesting? /cgi-bin/nut/upsstats.cgi ? Do you see that in your access log? (or in the error log with DebugVariables enabled?) I don't see that in any of the information your shared.

@TEMPC@
@UPSSTATSPATH upsstats.cgi@
@UPSIMAGEPATH upsimage.cgi@

If you think that is SPECIFIC instead of vague, then I guess I am unable to help you further. You should look at what the javascript in the HTML is requesting.

It seems that you should also practice using a search engine. This was my first hit when I put in some basic search terms: "nut" and "lighttpd":
https://thesoloadmin.com/monitoring-your-ups-with-nut/