This is my checklist (in progress) for installing Ubuntu.
The important thing for me right now is to get it all in one place; I’ll make it pretty and presentable later.
Ubuntu in a VM
Install the distribution
Make sure the network adapter is enabled and in bridged mode
Before installing guest additions make sure to install the following packages:
sudo apt-get update sudo apt-get upgrade sudo apt-get install build-essential gcc make perl dkms linux-headers-$(uname -r) net-tools ssh nfs-common nfs-kernel-server samba
and then reboot and install the guest additions.
Make df output more friendly by creating a system-wide alias for it:
echo "alias df='df -h -x squashfs -x tmpfs -x devtmpfs'" >> /etc/profile.d/aliases.sh
Make sure to set the “always_set_home” variable in the sudoers file (using visudo)
View video resolution capabilities – xrandr -q
List installed packages – sudo apt list –installed
Helpful Web Pages
Finally! The solution to get the “right” VNC setup
Ubuntu 18.04 switched from LightDM to GDM3. Connecting to the login screen with VNC while using GDM3 is currently not possible. The easiest way to get this VNC functionality back is to simply switch back from GDM3 to LightDM.
LightDM is still being actively developed and used by many Linux distributions including some other flavors of Ubuntu. So no worries there.
apt install lightdm
Should you for some reason come to regret switching to LightDM:
Once you have LightDM installed and configured as your default greeter..
Install x11vnc from packages
apt install x11vnc
Create the file /lib/systemd/system/x11vnc.service
# Description: Custom Service Unit file # File: /lib/systemd/system/x11vnc.service [Unit] Description="x11vnc" Requires=display-manager.service After=display-manager.service [Service] ExecStart=/usr/bin/x11vnc -loop -nopw -shared -xkb -repeat -noxrecord -noxfixes -noxdamage -forever -rfbport 5900 -display :0 -auth guess ExecStop=/usr/bin/killall x11vnc Restart=on-failure Restart-sec=2 [Install] WantedBy=multi-user.target
Enable the x11vnc service
systemctl enable x11vnc.service
This assumes screen :0 represents your monitor and binds x11vnc to that monitor instead of a session. If you do not have a monitor (headless) I believe it is possible to install a fake monitor driver and bind x11vnc to that.
- Incase you are using virt-manager (which also enables VNC on 127.0.0.1:5900) you may want to bind x11vnc to your LAN IP (-listen 10.0.0.1)
- The parameters used to start x11vnc tell it not to ask for an additional password (-nopw)
Lets Encrypt/OpenVPN information
Customizing the MOTD
Put any customization data into /etc/motd
Installing apache and php
sudo apt update sudo apt install apache2 sudo apt install php libapache2-mod-php sudo apt install php-mysql php-gd php-xml sudo apt install phpmyadmin php-mbstring php-gettext
Reference this guide.
User profile changes
- If desired, disable the screen saver lock and screen blanking (see below)
Other things to document
Listing all installed packages
apt list –installed
Searching for available packages
apt-cache search <keyword>
Changing default editor for visudo
sudo update-alternatives –config editor
Disable screen lock
Settings -> Privacy -> Screen Lock
Disable screen blanking
Settings -> Power -> Blank Screen
Create Samba User
smbpasswd -a <username>
View Samba Users
Add domains to the DNS Search Suffix list
Edit /etc/systemd/resolved.conf and add domains after Domains=
Finding largest files/directories
du -a /dir/ | sort -n -r | head -n 20 (replace 20 with the # of lines you wish to have returned)
Disable colors in the vi editor by default
Create (or edit, if it exists) ~/.vimrc; into this file add the command syntax off, and save the file.