Multiple web servers log-files in one place?

Question

I have few web servers behind load balancer. Load balancer is separate server and web servers are also located on separate machines. How is it possible to organize maintaining log files from different machines to one place, in one file?

Answer 1

You have two options for this,

1) Enable logging on the frontend (load balancing) server, then you'll just get one log file
2) Log on each of the individual servers then once a week/day/hour run a cronjob to scp the files to a single place then combine them with something like cat server{1-x}.log >> allservers.log (Obviously replace x with the number of servers) and you'll get all the logs in one file, allthough they won't be in correct chronological order but most software I've used (Webalizer, AWStats etc.) doesn't care about this as long as the logs all contain timestamps.

If you go for option 2 make sure all the servers use the same log format