!!! Отключить самописный веб сервер !!!

http://www.lissyara.su/articles/freebsd/security/portsentry/

server# apt-get install portsentry

server# cd /etc/portsentry/ 

freebsd8# pkg_add -r portsentry

freebsd10# pkg install portsentry

server# cd /usr/local/etc/

server# cp portsentry.conf.default portsentry.conf

server# cp portsentry.ignore.default portsentry.ignore 

server# cat /etc/portsentry/portsentry.conf

...
BLOCK_UDP="0"
BLOCK_TCP="0"
...

server# tail -f /var/log/syslog
или
server# tail -f /var/log/messages

Конфигурация в режиме "все разрешено, кроме"

server# :> /etc/hosts.deny

server# cat /etc/portsentry/portsentry.conf

...
BLOCK_UDP="1"
BLOCK_TCP="1"
...
KILL_HOSTS_DENY="ALL: $TARGET$"
...

Управление таблицей маршрутизации

server# cat /var/lib/portsentry/portsentry.blocked.*
или
server# cat /usr/local/etc/portsentry.blocked.*