dynax60

#!/usr/bin/perl
# dnf install perl-Net
# wget ftp://ftp.ripe.net/ripe/dbase/split/ripe.db.inetnum.gz
# wget https://ftp.apnic.net/apnic/whois/apnic.db.inetnum.gz
# zcat ripe.db.inetnum.gz | ./subnets.pl RU BY
# zcat apnic.db.inetnum.gz | ./subnets.pl MN

use Net::CIDR qw(range2cidr);
use Symbol;
use strict;

binarykore

private $_servers = [
	"ac" => "whois.nic.ac",
	"ae" => "whois.aeda.net.ae",
	"aero" => "whois.aero",
	"af" => "whois.nic.af",
	"ag" => "whois.nic.ag",
	"al" => "whois.ripe.net",
	"am" => "whois.amnic.net",
	"as" => "whois.nic.as",
	"asia" => "whois.nic.asia",

rail01

Below is the list of publickly accessible NTP time servers located in Poland, along with their hostnames, IP addresses, Stratum levels, AS numbers and contact information.

List consists of trustworthy sources such as government agencies, scientific organizations, ISPs or major infrastructure providers. STRATUM 1 and 2.

If you're looking to use any of those NTP servers in business-critical production environment, please consider obtaining time from a time source directly, e.g. via GPS receiver or caesium atomic clock.

List

Host organization	Hostname(s)	IPv4	IPv6	STRATUM	ASN	Contact information
Główny Urząd Miar (Central Office of Measures)	tempus1.gum.gov.pl tempus2.gum.gov.pl	194.146.251.100 194.146.251.101	N/A	1	AS50606	[email protected]

leosaa

Install chrony in FreeBSD

chrony is a versatile implementation of the Network Time Protocol (NTP). It can synchronise the system clock with NTP servers. Chrony is an accurate network time daemon and an alternate implementation of the Network Time Protocol (NTP) compared to ntp.org's NTPd.

Chrony has quite a few advantages over the other NTP implementations, check the chrony ntp comparison page for more details.

Installing

FreeBSD 12 supports Chrony v3.5 which allows privilege separation. The installer will create the user chronyd. So the Chrony daemon will running as the the unprivileged user chronyd

zhangyoufu

IPv6 Address Space

::/128               Unspecified Address
  ::1/128            Loopback Address
  ::ffff:0:0/96      IPv4-mapped Address
64:ff9b::/96         IPv4-IPv6 Translate
64:ff9b:1::/48       IPv4-IPv6 Translate
100::/64             Discard-Only Address Block
0200::/7             OSI NSAP-mapped prefix set (deprecated)

evoknow

mschep

# Very minimal BIRD2 configuration with RPKI enabled

log syslog { info, remote, warning, error, auth, fatal, bug };
log "/var/log/bird.debug.log" { debug, remote, trace };

router id 193.0.31.28;

protocol device {
}

nelsnelson

Public DNS Servers

Source: https://duckduckgo.com/?q=fast+public+dns+servers&ia=answer&iax=answer

Alternate DNS

198.101.242.72

23.253.163.53

mortonfox

OpenDNS

208.67.222.222
208.67.220.220

2620:0:ccc::2
2620:0:ccd::2

Google DNS

tuklusan

# --
# This is Supratim Sanyal's NTP Server configuration file
# To test, use "ntpdate -q <this host>" from another host
# This server will not respond to peer queries ("ntpdc -q") etc. from
# external hosts.
#
# The stratum 1 servers used by this server are mostly educational and
# military servers from:
# http://support.ntp.org/bin/view/Servers/StratumOneTimeServers?redirectedfrom=Servers.StratumOne
# Comment out the stratum 2 servers to make this server stratum 2 with