[mrtg] png files not created correctly

Erich Trowbridge ewtrowbr at yahoo.com
Wed Sep 3 19:55:46 MEST 2003


Hello,

RH8.0
libpng-1.2.2-8
libpng10-1.0.13-6
gd-1.8.4-11
mrtg-2.9.25-1.7.2

The mrtg.cfg file is read, the log files all update, but the .png graphs
are not created. They stay at 75 bytes, even thought the timestamp on
the .png indicates that it has been updated. I think this may be a
problem with my gd version. Everything is installed via RPM. 

In my index.html file (created via indexmaker), the links point to the
correct files. (e.g <IMG BORDER=1 ALT="192.168.100.1_10.3.26.1 Traffic
Graph" SRC="192.168.100.1_10.3.26.1-day.png">) When I try to view the
.png file with mozilla directly, I get the error in my browser "The
image “http://support.grayinsco.com/mrtg/192.168.100.1_10.3.6.1-day.png”
cannot be displayed, because it contains errors."

Does anybody even know how I can troubleshoot this? 

Erich Trowbridge

I am attaching the text of the .png image incase this helps somebody...
[root at NetManager mrtg]# more 192.168.100.1_10.3.6.1-day.png
?PNG

IHDR??e>??
PLTE??????ddd??f??O?????q?


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