HOWTO Setup Deny Hosts
emerge -vp openssh [ebuild R ] net-misc/openssh-4.7_p1-r1 USE="pam tcpd
emerge -vp denyhosts
rc-update add denyhosts default
vi /etc/denyhosts.conf
PURGE_DENY =2h
PURGE_THRESHOLD = 3
BLOCK_SERVICE = ALL
REM out BLOCK_SERVICE = sshd
DENY_THRESHOLD_ROOT = 4
SYSLOG_REPORT=YES
SYNC_SERVER = http://xmlrpc.denyhosts.net:9911
SYNC_INTERVAL = 1h
SYNC_UPLOAD = yes
SYNC_DOWNLOAD = yes
SYNC_DOWNLOAD_THRESHOLD = 3
/etc/init.d/denyhosts start