sldb is the embedded database for syslog. It captures log messages to a disk-backed database, and sorts them by user-defined subject. Excess messages from each bin are pruned on a first-in, first out basis.
Loggy is a Linux Advanced Logcleaner and a tool to hide you in a linux machine
by cleaning or modifing the intruder's ip from all the logfiles in /var
bin and txt logs it find logs, with a recursive search in /var/log and a lot of fantastic features