Thanks Kalin But problem is I can't modify the behaviour of the application ( application which I called a process), its almost impossible, because code is not available to me. but because each process or application runs under different name, that might help me if its possible to go with regex filtering. thanks Kalin KOZHUHAROV <kalin.kozhuharov@jp.adecco.com> wrote: [fixed quoting] Hi Jawed, jawed abbasi wrote:
*/Kalin KOZHUHAROV /* wrote:
jawed abbasi wrote:
Hi
I am wondering if there is a way to config syslog-ng so that
* it receives data from multiple processes running on the same source hosts and writting top the same port, without using (facility or severity levels) and still syslog writes a separate logfile for each process?
Yes, it depends.
for example:
HOST A runs all follwing processes which all write to same port 908
proces A process b process c
but different log files are created for each process.
If you can distinguish the output of each process, syslog-ng can also (via regex). A simple way to do that is to include PID in each MSG (a very common approach in non-Windoze world).
not sure what you mean include pid? how to add pid in msg? can you give me an example PID is short for Process Identifier[1]. Generally, all processes in a OS can obtain their PID from the OS by invoking some function (e.g. `echo $$` in bash).
The processes A,a,b above have to be modified to perpend their PID in their log output. For example, an excerpt from my logs: Jan 16 12:30:00 oss fcron[29796]: Job /usr/bin/test -x /usr/sbin/run-crons && /usr/sbin/run-crons started for user root (pid 29797) Jan 16 12:40:00 oss fcron[29941]: Job /usr/bin/test -x /usr/sbin/run-crons && /usr/sbin/run-crons started for user root (pid 29942) Note the end of the lines. You can filter things like that based on the "\(pid (\d+)\)" regex if I am not wrong in the syntax. That is it. [1] http://en.wikipedia.org/wiki/Process_identifier All the best, Kalin. -- | A | | D | | J | | P | _______________________________________________ syslog-ng maillist - syslog-ng@lists.balabit.hu https://lists.balabit.hu/mailman/listinfo/syslog-ng Frequently asked questions at http://www.campin.net/syslog-ng/faq.html --------------------------------- Everyone is raving about the all-new Yahoo! Mail beta.