Linux Ubuntu 16 Server Installation
- You have downloaded the install ISO from ubuntu.com.
- You have determined the core system configuration items:
- Hostname and FQDNS
- IP\Netmask\Gateway or DHCP
- Name Servers (AKA DNS Servers)
- You have allocated the minimum resources or better for enterprise environment:
- CPUs\Cores (2)
- RAM: 2gb
- Disk Space: 50gb
- Interface (1gb)
Installation Cheat Sheet
Select Language: English Select Install Ubuntu Server
Language & Keyboard
Select a language: English Select your location: United States Detect Keyboard: No Configure Keyboard: English (US) Configure Keyboard layout: English (US)
Select the Primary network interface: eth0: Intel Corporation 8254OEM Gigabit Ethernet Controller eth1: Intel Corporation 8254OEM Gigabit Ethernet Controller If not using DHCP (or it is not detected) select: Configure network manually: - IP Address: 192.168.56.71 - Netmask: 255.255.255.0 - Gateway: 192.168.0.1 - Name Server Address: <Space Separated DNS Server IPs [3 Max]> Enter Hostname: ubuntu1 Domain name: mycompany.local
Full name for user: lnxuser Username for your account: lnxuser Password: ******** Encrypt Home Directory: No Process runs... Select\confirm your time zone: Eastern or America/New_York
Partition Disks: [Guided - use entire disk and set up LVM] Select disk partition: SCSI3 (0,0,0) (sda) - nnnn GB ATA VBOX HARDISK Write the changes to disk and configure LVM? Yes Amount of volume group to use for guided partitioning (use all available): Continue Write the changes to disk? Yes Process runs...
Enter http proxy info if needed (leave blank): Continue Process runs... How do you want to manage upgrades on this system? [No automatic updates] Software selection: (Arrow to move - space bar to select), then: Continue The default is fine with just [*] standard system utilities selected. Process runs... Install the GRUB boot loader on a hard disk: Yes Finish the installation: Continue System reboots...
Post Install Tasks
sudo chmod 666 /etc/apt/sources.list sudo apt-get update sudo apt-get upgrade sudo -i shutdown -r now
Installs GUI Desktop Lite
sudo tasksel install lubuntu-desktop sudo -i shutdown -r now
Full Ubuntu 14 Desktop install requires access to FaceBook! The above lite version does not.
This enables putty access.
sudo apt-get install openssh-server
timesyncd & NTP
Ubuntu’s default install now uses timesyncd instead of ntpd. timesyncd connects to the same time servers and works in roughly the same way, but is more lightweight and more integrated with systemd and the low level workings of Ubuntu.
Controlling timesyncd with timedatectl
timedatectl ... Network time on: yes NTP synchronized: yes If timesyncd isn’t enabled, turn it on with timedatectl: sudo timedatectl set-ntp on
Switching to ntpd
Though timesyncd is fine for most purposes, some applications that are very sensitive to even the slightest perturbations in time may be better served by ntpd, as it uses more sophisticated techniques to constantly and gradually keep the system time on track.
Before installing ntpd, we should turn off timesyncd:
sudo timedatectl set-ntp no
Verify that timesyncd is off:
Look for Network time on: no in the output. This means timesyncd has been stopped.
We can now install the ntp package with apt-get:
sudo apt-get install ntp
ntpd will be started automatically after install.
You can query ntpd for status information to verify that everything is working:
sudo ntpq -p
To Use Your Local NTP Server
1. sudo vi /etc/ntp.conf 2. Comment out pool 0-n entries. 3. Add entry to your ntp server as so: pool 10.2.0.10 iburst 4. Enable & Test sudo systemctl restart ntp sudo systemctl status ntp sudo ntpq -p
Virtual Box (if used)
sudo apt-get install perl sudo apt-get install build-essential gcc make perl dkms
Install Guest Additions
VM Menu: Devices -> Optical Drives -> Install Guest Additions mkdir -p /media/cdrom sudo mount /dev/sr0 /media/cdrom sudo sh /media/cdrom/VBoxLinuxAdditions.run Process runs... sudo -i shutdown -r now
GUI Apps (running from putty)
cd /usr/share/applications pcmanfm -> System Settings -> Network
Open a Terminal
Ctrl - Alt - T
sudo -i shutdown -r now 🠈 reboots sudo -i shutdown -h now 🠈 halts
root Password, Setting
sudo passwd root