Securing NTP (Linux Only)

• 28 September 2021
• in: Dedicated Server,Tutorials

NTP is used for ensuring the time on your dedicated server is accurate Some configuration of this software cause it to be vulnerable to being absued to conduct DDoS attacks. To no longer it get abused we suggest for fixing the server’s configuration.

to prevent abuse:

1. Open your ntp.conf file (generally in/etc/ntp.conf).
2. Remove any existing lines that being with ‘restrict’
3. Add the following four lines to the beginning of the file.
5. restrict -6 default kod limited nomodify notrapp nopeer noquery
6. restrict 127.0.0.1
7. restrict -6 ::1
8. Restart your NTP server with ‘service ntpd rrestart ‘ or ‘service ntp restart’