Apache webserver by default runs under www-data user, it needs read 
access to pool.rrd. Easiest solution is to add read permissions for 
others group to it (chmod 644).
--
Karlis


On 08.09.2016 20:29, David Trebacz wrote:
>
> I had the same issue and decided to investigate. My error log looked 
> like this:
>
> ERROR: opening '/var/lib/backuppc/log/pool.rrd': Permission denied: 
> /usr/share/backuppc/cgi-bin/index.cgi, referer: 
> http://servername/backuppc/index.cgi
>
> I found that I had to give execute permissions to the folders above 
> and read permissions to "everyone" on the pool.rrd then the graph 
> appeared. It would seem that the CGI script is executing as "everyone" 
> vs "backuppc user"
>
> Here are the minimal permission changes I made to get things to work.
> Changed BackupPC directory permission from: 2750 to 2751 --> 
> drwxr-s--x backuppc backuppc
> Changed BackupPC/log directory permission from: 750 to 751 --> 
> drwxr-x--x backuppc backuppc log
> Changed BackupPC/log/pool.rrd directory permission from: 640 to 754 
> --> -rwxr-xr-- backuppc backuppc pool.rrd
>
> My server is blocked from public access, so I was comfortable making 
> this change. I would be very happy to hear anyone's comments regarding 
> what type of security issue this may be -and if there is another way 
> to better way to solve this.
>
> *David Trebacz*
> David Trebacz Profile Picture
> www.linkedin.com/in/trebacz <http://www.linkedin.com/in/trebacz>
> Email:david AT trebacz DOT com <mailto:david AT trebacz DOT com>
> Mobile: 815-529-2638
> On 09/08/2016 01:23 AM, Orazio Di nino wrote:
>> Hello Alexander,
>>
>> In the /var/lib/backuppc/log/pool.rrd Apache2 log file is an access 
>> denied error. I attach the file.
>> What can I do ?
>>
>> Il 31/08/2016 20:16, Alexander Moisseev ha scritto:
>>> I've seen such an error before, but I don't remember what caused the 
>>> problem. I think CGI returns something else instead of image. If you are 
>>> lucky it might be an error message. Try to save this object as file and 
>>> inspect its content.
>>
>> -- 
>>
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>>
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>>
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>
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