Another Broken Image post

ryszard99 · Post by **ryszard99** » Sun Feb 18, 2007 5:24 pm

Hi all,

i've just installed zone minder on my ubuntu 6.10 machine, and as the subject says i've got a broken image when i attempt to view the cam.

details:
o zm is installed via the supplied .deb (1.22.3)
o apache2 with virtual hosts
o the webcam is local and using the spca5xx driver
o the cam is set up for "modetect" and via the events page i can see the stills
o it doesnt make a difference if i use nph-zms or zms as the streaming option
o my browser is ff 2.0.0.1 and non local (to the zm host) (mythtv is on the same host and mythweb works perfectly)

when i go directly to the url http://<hostname>/cgi-bin/zms i get a bunch of binary garbage however it is preceeded with an "ELF" string which leads me to believe apache is downloading the zms binary itself rather than executing it as a cgi.

at the cli, if i wget the page mentioned above, its md5 is the same as /cgi-bin/zms, which i guess means it is downloading the binary and not executing it.

logs:

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==> zmaudit.log <==
02/18/2007 18:04:06.818004 zmaudit[10352].DBG [Found filesystem monitor '1']
02/18/2007 18:04:06.819747 zmaudit[10352].DBG [Got 14 events]
02/18/2007 18:08:46.764318 zmaudit[10410].DBG [Found database monitor '1']
02/18/2007 18:08:46.876238 zmaudit[10410].DBG [Got 14 events]
02/18/2007 18:08:46.907696 zmaudit[10410].DBG [Found filesystem monitor '1']
02/18/2007 18:08:46.925992 zmaudit[10410].DBG [Got 14 events]
02/18/2007 18:09:00.281905 zmaudit[10437].DBG [Found database monitor '1']
02/18/2007 18:09:00.284482 zmaudit[10437].DBG [Got 14 events]
02/18/2007 18:09:00.317372 zmaudit[10437].DBG [Found filesystem monitor '1']
02/18/2007 18:09:00.318203 zmaudit[10437].DBG [Got 14 events]

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==> zmdc.log <==
02/18/2007 18:08:39.876812 zmdc[10309].INF ['zmupdate.pl -c' crashed, signal 14]
02/18/2007 18:08:39.877922 zmdc[10309].INF ['zmfilter.pl ' stopping at 07/02/18 18:08:39]
02/18/2007 18:08:39.880581 zmdc[10309].INF ['zmfilter.pl ' crashed, signal 14]
02/18/2007 18:08:39.881652 zmdc[10309].INF ['zma -m 1' stopping at 07/02/18 18:08:39]
02/18/2007 18:08:39.884210 zmdc[10309].INF ['zma -m 1' exited normally]
02/18/2007 18:08:39.885281 zmdc[10309].INF ['zmc -d /dev/video1' stopping at 07/02/18 18:08:39]
02/18/2007 18:08:39.974496 zmdc[10309].INF ['zmc -d /dev/video1' exited normally]
02/18/2007 18:08:39.975418 zmdc[10309].INF ['zmaudit.pl -c' stopping at 07/02/18 18:08:39]
02/18/2007 18:08:39.978096 zmdc[10309].INF ['zmaudit.pl -c' crashed, signal 14]
02/18/2007 18:08:53.813544 zmdc[10309].INF [Server shutdown at 07/02/18 18:08:53]

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==> zmfilter.log <==
02/18/2007 18:08:13.521312 zmfilter[10353].DBG [Sleeping for 60 seconds]
02/18/2007 18:08:47.132467 zmfilter[10408].INF [Scanning for events]
02/18/2007 18:08:52.137413 zmfilter[10408].DBG [Reloading filters]
02/18/2007 18:08:52.138417 zmfilter[10408].DBG [Sleeping for 60 seconds]
02/18/2007 18:09:01.038695 zmfilter[10438].INF [Scanning for events]
02/18/2007 18:09:06.052362 zmfilter[10438].DBG [Reloading filters]
02/18/2007 18:09:06.053377 zmfilter[10438].DBG [Sleeping for 60 seconds]
02/18/2007 18:10:06.059230 zmfilter[10438].DBG [Sleeping for 60 seconds]
02/18/2007 18:11:06.066142 zmfilter[10438].DBG [Sleeping for 60 seconds]
02/18/2007 18:12:06.073014 zmfilter[10438].DBG [Sleeping for 60 seconds]

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==> zmpkg.log <==
02/18/2007 18:03:51.285415 zmpkg[10299].INF [Command: start]
02/18/2007 18:08:38.394828 zmpkg[10397].INF [Command: stop]

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==> zmupdate.log <==

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==> zmwatch.log <==
02/18/2007 18:03:54.994098 zmwatch[10323].INF [Watchdog pausing for 30 seconds]
02/18/2007 18:04:05.191398 zmwatch[10354].INF [Watchdog starting]
02/18/2007 18:04:05.193112 zmwatch[10354].INF [Watchdog pausing for 30 seconds]
02/18/2007 18:04:06.178441 zmwatch[10351].INF [Watchdog starting]
02/18/2007 18:04:06.180170 zmwatch[10351].INF [Watchdog pausing for 30 seconds]
02/18/2007 18:08:46.367033 zmwatch[10351].INF [Restarting capture daemon for cam1, shared memory not valid]
02/18/2007 18:08:47.846235 zmwatch[10415].INF [Watchdog starting]
02/18/2007 18:08:47.848092 zmwatch[10415].INF [Watchdog pausing for 30 seconds]
02/18/2007 18:08:59.915329 zmwatch[10436].INF [Watchdog starting]
02/18/2007 18:08:59.917287 zmwatch[10436].INF [Watchdog pausing for 30 seconds]

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apache conf:
<VirtualHost *>
        ServerAdmin email@email.address
        ServerName zm.domain
        ServerRoot /etc/apache2

        DocumentRoot /var/www/zm
        <Directory /var/www/zm>
                Options FollowSymLinks
                Options ExecCGI -MultiViews +SymLinksIfOwnerMatch +FollowSymLinks
                AllowOverride All
        </Directory>
        <Directory /var/www/zm/cgi-bin>
                AllowOverride None
                Options ExecCGI
                AddHandler cgi-script *
                Order allow,deny
                Allow from all
        </Directory>

        ErrorLog /var/log/apache2/zm.error.log

        # Possible values include: debug, info, notice, warn, error, crit,
        # alert, emerg.
        LogLevel warn

        CustomLog /var/log/apache2/zm.access.log combined
        ServerSignature Off

</VirtualHost>

the video device are /dev/video1 which is 777, so no worries with access there. as far as i can see there is nothing interesting according to dmesg, however i think the problem could possibly be with apache, so no surprise there.

so, i'm at a bit of a loss as to what's happening here. if someone could shed some light on the subject or point me in the right direction, i'd appreciate it..

regs
Ryszad

Post by **cordel** » Sun Feb 18, 2007 9:55 pm

ryszard99 wrote: when i go directly to the url http://<hostname>/cgi-bin/zms i get a bunch of binary garbage however it is preceeded with an "ELF" string which leads me to believe apache is downloading the zms binary itself rather than executing it as a cgi.

Code: Select all

apache conf:
<VirtualHost *>
        ServerAdmin email@email.address
        ServerName zm.domain
        ServerRoot /etc/apache2

        DocumentRoot /var/www/zm
        <Directory /var/www/zm>
                Options FollowSymLinks
                Options ExecCGI -MultiViews +SymLinksIfOwnerMatch +FollowSymLinks
                AllowOverride All
        </Directory>
        <Directory /var/www/zm/cgi-bin>
                AllowOverride None
                Options ExecCGI
                AddHandler cgi-script *
                Order allow,deny
                Allow from all
        </Directory>

        ErrorLog /var/log/apache2/zm.error.log

        # Possible values include: debug, info, notice, warn, error, crit,
        # alert, emerg.
        LogLevel warn

        CustomLog /var/log/apache2/zm.access.log combined
        ServerSignature Off

</VirtualHost>

Your showing two different paths for zms cgi-bin location so which is it /zm/cgi-bin/zms or /cgi-bin/zms

ryszard99 · Post by **ryszard99** » Mon Feb 19, 2007 6:22 pm

the idea behind the two Directory statements was to specifically make them both ExecCGI.

however commenting each of those Directory blocks out in a mutually exclusive way didnt help, so

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<VirtualHost *>
        ServerAdmin jwilliams@ryszard.us
        ServerName int.zm.ryszard.us
        ServerRoot /etc/apache2

        DocumentRoot /var/www/zm
        <Directory /var/www/zm>
                Options FollowSymLinks
                Options ExecCGI -MultiViews +SymLinksIfOwnerMatch +FollowSymLinks
                AllowOverride All
        </Directory>

        ErrorLog /var/log/apache2/zm.error.log

        # Possible values include: debug, info, notice, warn, error, crit,
        # alert, emerg.
        LogLevel warn

        CustomLog /var/log/apache2/zm.access.log combined
        ServerSignature Off

</VirtualHost>

it is..

pdc124 · Post by **pdc124** » Tue Feb 20, 2007 8:47 pm

I had broken images problem in spite of chmodding 777 . I added my user to the video group and it worked . No idea why

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