Differences

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--- distros:ubuntu_server [2019/06/03 20:40] – [Timer] Sean Rhone
+++ distros:ubuntu_server [2020/06/12 03:03] – Sean Rhone
@@ Line 2: / Line 2: @@
   * Ubuntu Server ((http://www.ubuntu.com/server))
-  * 18.04.1 LTS
+  * 20.04 LTS
+====== Known Issues ======
+  * None
 ====== Download ======
@@ Line 11: / Line 15: @@
 ====== Installation Notes ======
-  * :!: Either use the Alternate or Network installer images to avoid cloud-init stuff
   * During installation, allow network autoconfig to occur, and then go back once prompted for a hostname; this will allow setting a static IPv4 address and custom DNS settings
-====== Software ======
+====== Repositories ======
-===== Repositories =====
-=== Additional Ubuntu ===
+===== Additional Ubuntu =====
   * https://help.ubuntu.com/community/Repositories/Ubuntu
@@ Line 29: / Line 30: @@
   sudo add-apt-repository 'restricted'
+====== Software ======
 ===== Update =====
+==== System ====
 ****
@@ Line 36: / Line 41: @@
   sudo apt update && sudo apt full-upgrade -y && sudo apt autoremove -y && sudo apt clean && sync
-===== CPU Microcode =====
+==== Snaps ====
-==== Intel ====
 ****
-  intel-microcode
+  sudo snap refresh
-==== AMD ====
+===== General =====
-  * Kraityn can't use this ((AMD Athlon(tm) 64 X2 Dual Core Processor 5600+))
+==== Bare-metal ====
-  * TODO Oak ((AMD Phenom(tm) II X4 965 Processor))
-  amd64-microcode
+****
-====== Settings ======
+  sudo apt install lm-sensors
-===== Cloud-Init =====
+===== Keybase =====
-  * https://cloudinit.readthedocs.io/en/latest/topics/boot.html#generator
+  * https://keybase.io
-  * This disabled Cloud-Init
+  * TODO: Figure out backup script
-  * :!: Can avoid this by using the Alternative or Network installer images to install instead of the default image
-  sudo touch '/etc/cloud/cloud-init.disabled'
+  wget -O '/tmp/keybase_amd64.deb' 'https://prerelease.keybase.io/keybase_amd64.deb' && sudo dpkg --install '/tmp/keybase_amd64.deb' && sudo apt install -f && rm '/tmp/keybase_amd64.deb' && sync && run_keybase
-===== systemd-networkd =====
+====== Settings ======
-  * This prevents the 2-minute start-up delay that happens for some unknown reason
+===== OpenSSH =====
-  * :!: This would theoretically pose a potential problem if there really is no internet connectivity ((But then again, I'm not sure what would happen without the mask even without an internet connection))
-  sudo systemctl mask 'systemd-networkd-wait-online.service' --now
+  * See [[clients:secure_shell|OpenSSH Client]] notes to generate/restore public key
+  * See [[servers:secure_shell|OpenSSH Server]] notes to force public key auth and to further secure the OpenSSH server
-===== Secure Shell =====
+===== Sensors =====
-  * See [[Clients:Secure Shell]]
+==== Detect ====
-===== Timezone =====
+****
-  * Show list of available timezones with ''timedatectl''
+  sudo sensors-detect --auto
-  sudo timedatectl set-timezone 'America/New_York'
+==== Watch ====
-===== TRIM =====
+****
-==== Swap ====
-  * Add ''discard'' after ''defaults'' for the ''swap'' mountpoint ((defaults,discard))
-  sudo -e '/etc/fstab'
-  ,discard
-==== Service ====
-  * ''fstrim.timer'' is already enabled out-the-box, but this is useful for historical purposes
-  * TODO: Verify
-  sudo systemctl enable 'fstrim.timer' --now && sudo systemctl start 'fstrim' && sync && sudo systemctl status 'fstrim' -l
+  sudo watch -n0.1 sensors
 ===== Uncomplicated Firewall =====
   * Allows SSH
+  * :!: Does not limit SSH ((this caused issues; better to just secure SSH))
+  * See [[notes:ufw|ufw]] for more notes
   sudo ufw reset && sudo ufw default deny && sudo ufw logging off && sudo ufw allow 'ssh' && sudo ufw enable && sudo systemctl enable 'ufw'