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https://github.com/bradsec/debmotd
Debian Ubuntu Raspberry Pi Linux Message of the Day (MOTD) banner with system information
https://github.com/bradsec/debmotd
debian motd motd-login-banner motd-message raspberry-pi raspberrypi ubuntu
Last synced: 9 days ago
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Debian Ubuntu Raspberry Pi Linux Message of the Day (MOTD) banner with system information
- Host: GitHub
- URL: https://github.com/bradsec/debmotd
- Owner: bradsec
- License: mit
- Created: 2022-05-15T02:05:30.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2023-08-20T03:36:02.000Z (over 1 year ago)
- Last Synced: 2024-11-10T13:12:05.954Z (2 months ago)
- Topics: debian, motd, motd-login-banner, motd-message, raspberry-pi, raspberrypi, ubuntu
- Language: Shell
- Homepage:
- Size: 38.1 KB
- Stars: 0
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## Debian Ubuntu Raspberry Pi Linux Message of the Day (MOTD) banner with system information
### Tested with the following systems
* Debian 11
* Ubuntu 22.04 LTS
* FreeBSD 13 (currently limited display options)
### Sample output
```terminal
╔═════════════════════════════════════════════╗
║ YOU HAVE ACCESSED A PRIVATE SYSTEM ║
║ AUTHORISED USER ACCESS ONLY ║
║ ║
║ Unauthorised use of this system is strictly ║
║ prohibited and may be subject to criminal ║
║ prosecution. ║
║ ║
║ ALL ACTIVITIES ON THIS SYSTEM ARE LOGGED. ║
╚═════════════════════════════════════════════╝
System Hostname...: debian01
System Date/Time..: Mon, 14 August 2023, 12:05:45 PM
System Uptime.....: 3 hours, 34 minutes
System OS.........: Debian GNU/Linux 12 (bookworm)
System Kernel.....: 6.1.0-11-amd64
System Arch.......: x86_64
System Proc.......: 13th Gen Intel(R) Core(TM) i7-13700K
Memory Usage......: 2199MB/64068MB (3%)
Storage /.........: 380GB/982GB (36%)
Storage /boot.....: 183MB/478MB (35%)
Storage /boot/efi.: 37MB/536MB (7%)
Network eth0......: 192.168.1.10
Ext. IP Address...: 12.34.56.78
Ext. IP Location..: City Region CountryCode
Ext. IP ORG/ISP...: Provide / ISP Information
Raspberry Pi will display processor as follows -
System Proc.......: Raspberry Pi 4 Model B Rev 1.1
```
### Usage Quick Install
The following applies to Debian and Raspberry Pi
```terminal
# Download `motd.sh` as `00-motd` into `/etc/update-motd.d/` directory and set permissions.
sudo wget -qO /etc/update-motd.d/00-motd https://raw.githubusercontent.com/bradsec/debmotd/main/motd.sh &&\
sudo chmod 755 /etc/update-motd.d/00-motd
# Rename default motd (applies to Debian and Raspberry Pi not Ubuntu)
sudo mv /etc/motd /etc/motd.original
# Disable any other scripts in `/etc/update-motd.d/` apart from the new `00-motd`
sudo chmod -x /etc/update-motd.d/* &&\
sudo chmod +x /etc/update-motd.d/00-motd &&\
# Update the SSH config to prevent last user login information being displayed.
sudo sed -i 's/#PrintLastLog yes/PrintLastLog no/' /etc/ssh/sshd_config &&\
sudo sed -i 's/PrintLastLog yes/PrintLastLog no/' /etc/ssh/sshd_config &&\
sudo systemctl restart ssh
```
### Notes / Troubleshooting
- The ipinfo.io lookup delays the execution and login slightly.
- Comment out in the `sys_info()` function to disable this function.
- Ubuntu by default may be missing `ifconfig` and no display network interface IP information.
- Simply install net-tools using `sudo apt install net-tools`