I have looked at many logs and it seems that some of them are more relevant for monitoring purposes against hackers. The ones I found are:
-auth.log -mail.log: if i'm running a mail server, will this be important? -btmp -secure -faillog -apache2/access.log -mysql.log & mysql.err
Note: I'm running LAMP and using phpMyAdmin to access DB.
Is there anything that is useless in that list? Anything that I should include?
Also, I fail to open up these log files that don't have ".log" extensions. I guess I'm supposed to execute them, but even User doesn't have execute permissions on them and when I chmod 700, nothing happens when I execute them. How am I supposed to do it?
Thanks in advance