Защита (Chroot) NTP сервера.

Chroot NTP сервер.

Для этого надо запустить скрипт /usr/local/sbin/chroot-ntp

#!/bin/bash

/etc/init.d/ntp stop

rootfs=/var/chroot/ntp

mkdir -p $rootfs/{etc,var/lib/ntp,var/log}

mv /etc/ntp.conf $rootfs/etc

ln -s $rootfs/etc/ntp.conf /etc/ntp.conf

if [ -e /var/lib/ntp/ntp.drift ]; then

    mv /var/lib/ntp/ntp.drift $rootfs/var/lib/ntp

fi

ln -s $rootfs/var/lib/ntp/ntp.drift \

    /var/lib/ntp/ntp.drift

chown -R ntp:ntp $rootfs/var/lib/ntp

mv /var/log/ntpstats $rootfs/var/log

ln -s $rootfs/var/log/ntpstats /var/log/ntpstats

chown -R ntp:ntp $rootfs/var/log/ntpstats

sed -e "s,'-g','-4 -i /var/chroot/ntp -g'," \

    /etc/default/ntp > /tmp/x && \

    mv /tmp/x /etc/default/ntp

sed -e "s,restrict -6,#restrict -6," \

    -e "s,restrict ::1,#restrict ::1," \

    /etc/ntp.conf > /tmp/x && \

    mv /tmp/x /etc/ntp.conf

/etc/init.d/ntp start

Проверить строчку в (file /etc/default/ntp), если ее нет - внести:

NTPD_OPTS='-4 -i /var/chroot/ntp -g'