#-Road-Map---------------------------------
#
# NTP-Server
#
# Datum: Jan. 2026 (Geprüft)
#
# Eine "Strassenkarte" ist eine simple Text-Datei,
# welche die Befehle zum kopieren und einfügen 
# im CLI oder auf dem Desktop bereitstellt und 
# zusätzlich einem einen Grobablauf einer Installation aufzeigt.
#------------------------------------------

#------------------------------------------
# SSH-Verbindung 
#------------------------------------------

ssh DEINUSER@192.168.1.X


#------------------------------------------
# System-Update / -Upgrade 
#------------------------------------------

sudo apt update 
sudo apt upgrade -y 
sudo apt autoclean 
sudo apt autoremove


#------------------------------------------
# Statische IP Adresse 
#------------------------------------------

ip addr
sudo su
cd /etc/netplan
ls
for i in $( ls ); do mv $i $i.bak; done
touch /etc/netplan/01_static_ip.yaml
nano /etc/netplan/01_static_ip.yaml


# Adapter-Einstellungen (Ctrl + O und Ctrl + X zum speichern)
network:
  version: 2
  renderer: networkd
  ethernets:
    ens18: #Edit this line according to your network interface name.
      dhcp4: no
      addresses:
        - 192.168.1.150/24
      gateway4: 192.168.1.1
      nameservers:
        addresses:
          - 8.8.8.8
          - 8.8.4.4

netplan generate && netplan apply

# Verbindung wird unterbrochen, Fenster schliessen 
# und erneut mit der neuen IP einloggen


#------------------------------------------
# Hostnamen festlegen
#------------------------------------------

ssh DEINUSER@192.168.1.X
sudo hostnamectl set-hostname DEINHOSTNAME
sudo nano /etc/hosts

# Host-Datei (Ctrl + O und Ctrl + X zum speichern)

127.0.0.1 localhost
127.0.1.1 DEINHOSTNAME

::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

sudo reboot


#------------------------------------------
# Installation und Einstellungen
#------------------------------------------

ssh DEINUSER@192.168.1.X
sudo apt install ntp -y
sudo systemctl enable ntp.service

sudo nano /etc/ntp.conf

# NTP-Datei (Ctrl + O und Ctrl + X zum speichern)

# Specify one or more NTP servers.
# Use servers from the NTP Pool Project. Approved by Ubuntu Technical Board
# on 2011-02-08 (LP: #104525). See http://www.pool.ntp.org/join.html for
# more information.
pool 0.ubuntu.pool.ntp.org iburst
pool 1.ubuntu.pool.ntp.org iburst
pool 2.ubuntu.pool.ntp.org iburst
pool 3.ubuntu.pool.ntp.org iburst
# Use Ubuntu's ntp server as a fallback.
pool ntp.ubuntu.com


sudo systemctl restart ntp.service


#------------------------------------------
# Systembedienung & Wissenswertes
#------------------------------------------

sudo systemctl start restart ntp.service
sudo systemctl restart ntp.service
sudo systemctl stop ntp.service
sudo nano /etc/ntp.conf
cat /usr/share/zoneinfo/leap-seconds.list
cat /var/lib/ntp/ntp.drift

sudo apt install nmap -y && nmap localhost
man ntp.conf
date

sudo apt install ntpdate
sudo ntpdate 192.168.x.x
sudo ntpdate -u 192.168.x.x
sudo apt install ntpstat && ntpstat

ntpq -p

$> ntpq
ntpq> sysinfo
associd=0 status=0615 leap_none, sync_ntp, 1
event, clock_sync,
system peer:		193.134.29.11:123
system peer mode:	client
leap indicator:		00
stratum:		2
log2 precision:		-25
root delay:		28.354
root dispersion:	17.871
reference ID:		193.134.29.11
reference time:		ead5d1ab.458a0f98 Wed, Nov
6 2024 12:29:47.271
system jitter:		7.714009
clock jitter:		1.837
clock wander:		0.333
broadcast delay:	-50.000
symm. auth. delay:	0.000
ntpq> quit
$>