I do this by adding the following to my config file

@module confgen context(rewrite) name(r_myself) exec("/bin/hostname")

rewrite r_local {
        set( r_myself(), value("HOST") );
};

log {
        source(s_your_source);
        rewrite(r_local);
        destination(d_your_destination);
};

hope that helps.

On 08/29/2016 06:35 AM, Robert Blayzor wrote:

On Aug 29, 2016, at 9:22 AM, Fabien Wernli <wernli@in2p3.fr> wrote:

The backticks replace content, so you end up with a literal in your config.
Try this instead:

   rewrite r_host { set("`HOSTNAME`", value("HOST")); };


That certainly fixes the config from complaining, but I now just get an empty string; for which syslog-ng replaces with the hosts IP instead.

I’m just trying to re-write each messages host with the hostname of the current server.


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-- 
Evan Rempel                                      erempel@uvic.ca
Senior Systems Administrator                        250.721.7691
Data Centre Services, University Systems, University of Victoria