On one server, Fail2ban has banned over 150 IP addresses so far today
for attempting to hack into WordPress sites. (If you run WordPress and
you don't have protection against this, you need it!) The volume is such
that it managed to crash the MySQL server on one VPS today.
One suggestion I have seen is to use Apache's authorisation to limit
access to wp-login.php, but that a) involves telling a bunch of real
people a password and some of them could forget their own name and b)
increases the size of the apache process by about 20% over the slimmed
down version with as few modules enabled as possible that I have been
running.
Anyone have any other suggestions?
Ian