MySQL log settings

I was looking in my /var/log/mysql, and i saw a lot of mysql.bin.#### file's.
Is it safe to disable logging by commenting out the max_binlog_size in /etc/mysql/my.cnf.
Does this increase performance?
What can you do with these log file's?

Thanks in advance.

 

You need these files for MySQL replication. If you don't use MySQL replication, you can disable the logging in your my.cnf.

 

Thanks for the quick and usefull answer !!