initial commit

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Allan Christensen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,59 @@
+# NTP Client for Ubuntu 24.04 Server
+[![OS](https://img.shields.io/badge/ubuntu-24.04-E95420)](#)
+[![Shell](https://img.shields.io/badge/shell-bash-121011)](#)
+[![App](https://img.shields.io/badge/app-ntp_client-0098D4)](#)
+[![License](https://img.shields.io/badge/License-MIT-green)](./LICENSE)
+
+Automated Bash installer script for configuring an **NTP client** on Ubuntu 24.04 Server.
+
+This is a **production-focused installer**, not a demo.
+
+---
+
+### Preparing
+Update your package index before running the installer:
+
+```
+sudo apt update -y
+```
+
+### Download the Script
+Clone the repository from your Git server:
+
+```
+git clone https://git.x-files.dk/server/ntp-client-ubuntu.git
+```
+
+```
+cd ntp-client-ubuntu
+```
+
+### Usage
+Run the script using:
+
+```
+sudo ./ntp-client-install
+```
+
+### Check if it's Working
+Use the following command to verify synchronization with NTP servers:
+
+```
+ntpq -p
+```
+
+### Post-install
+Nothing to do.
+
+---
+
+### More Information
+
+More guides and documentation can be found on [wiki.x-files.dk](https://wiki.x-files.dk)
+
+---
+
+### License
+Licensed under the [MIT License](./LICENSE).
+
+---

last-tested

@@ -0,0 +1,4 @@
+------------------------------------
+Last tested: 15-10-2025 (DD-MM-YYYY)
+Environment: Ubuntu Server 24.04 LTS
+------------------------------------

ntp-client-install

@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+
+# Author        : Allan Christensen
+# First Created : 05012022 (DD-MM-YYYY)
+# Description   : Installs Ntp client on Ubuntu 24.04
+# License       : MIT License (see LICENSE file for details)
+
+#
+# Are we root
+#
+if [[ $(id -u) -ne 0 ]]; then echo "" && echo "Must be root or use sudo" && echo ""; exit 1; fi
+
+#
+# Install and enable NTP
+#
+apt install -y ntp ntpdate && systemctl enable ntp
+
+#
+# Disable systemd-timesyncd NTP
+#
+timedatectl set-ntp off
+
+#
+# Sync time once
+#
+ntpdate -u 0.pool.ntp.org
+
+#
+# Determine which NTP config file to use
+#
+# Default NTP config file
+conf_file="/etc/ntp.conf"
+
+#
+# If ntpsec is installed, override with ntpsec's config file
+#
+if [ -f /etc/ntpsec/ntp.conf ]; then conf_file="/etc/ntpsec/ntp.conf" ; fi
+
+#
+# Backup existing config file
+#
+backup_file="${conf_file}.bak"; cp "$conf_file" "$backup_file"
+
+# 
+# Define NTP servers
+# 
+ntp_servers="server 0.pool.ntp.org
+server 1.pool.ntp.org
+server 2.pool.ntp.org
+server 3.pool.ntp.org"
+
+#
+# Comment out existing pool servers
+#
+sed -i '/pool.ntp.org/ s/^/# /g' "$conf_file"
+
+#
+# Add the new defined servers
+tmp_file="/tmp/ntpconf" ; printf "%s\n" "$ntp_servers" > "$tmp_file"
+
+# Insert after a line containing "Specify one" if it exists else append at the end
+if grep -q "Specify one" "$conf_file"; then
+    sed -i "/Specify one/r $tmp_file" "$conf_file"
+else
+    cat "$tmp_file" >> "$conf_file"
+fi
+
+#
+# Restart NTP service
+#
+systemctl restart ntp
+
+#
+# Clean up
+#
+rm -f "$tmp_file"
+
+#
+# All done
+#
+printf "\nAll Done...\n"
+
+#
+# End of script
+#