[syslog-ng] file() source, facility, priority and new events only,

Balazs Scheidler bazsi at balabit.hu
Mon Jun 9 16:42:16 CEST 2008

On Mon, 2008-06-09 at 13:39 +0100, Hari Sekhon wrote:
> Hi,
>    I'm using the file() source to include logs from an application that 
> doesn't do syslog (heresy! :-) ). It looks like it's logging the thing 
> under the kern facility.
> I've been through the admin manual v2 and cannot see any way to change 
> the facility and priority that it marks the source as. My current source 
> looks like this:
> source s_app_name{
>                        file( "/path/to/app.log"
>                        log_prefix("App Name: ")
>                        flags(no-parse) )
>                        ; };
> Also, the app.log is quite big and syslog-ng has gone and taken the 
> whole thing and inserted it into syslog with the current timestamp. I'd 
> like to know if there is a tail -n 0 type switch to tell it to take only 
> things that have been appended since it has started watching the file. 
> Can this be done?

If it finds a new file, it usually sends the complete file and then
follow it the same way you describe it, you only need to specify the
follow-freq(<number of seconds to poll>) option to the file.

It does not skip the contents already there, it records the current
position instead, and continues reading from there on.

> I wrote a script that basically tails to logger which does all these 
> things but I'd rather use the file() source if I can get these niggles 
> working the way I want. I'm running syslog-ng 2.0.6.

I can't remember when but I remember I had some patches against file
sources, so please check out the latest NEWS file for file source
related changes.


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