Setup
# install sudo apt-get install -y strongswan # Left (Peer client, behind NAT) Ubuntu Client IP: 212.8.9.10 Ubuntu net: 192.168.178.0/24 OpenStack VPN IP: 217.50.60.70 OpenStack Net: 10.0.1.0/24
Create OpenStack VPN endpoint
http://www.panticz.de/openstack/vpnaas
/etc/ipsec.conf
Schedule
https://wiki.ubuntu.com/FocalFossa/ReleaseSchedule
ReleaseNotes
https://wiki.ubuntu.com/FocalFossa/ReleaseNotes
Known issues
https://wiki.ubuntu.com/FocalFossa/ReleaseNotes#Known_issues
Download
Releases: http://releases.ubuntu.com/20.04/
Cloud image (minimal): https://cloud-images.ubuntu.com/minimal/daily/focal/current/focal-minimal-cloudimg-amd64.img
Netboot: http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/images/netboot/mini.iso
Torrent: http://releases.ubuntu.com/20.04/ubuntu-20.04-desktop-amd64.iso.torrent
Repository
Show default mime
https://wiki.ubuntuusers.de/xdg-utils/
file --mime script1.sh xdg-mime query filetype script1.sh xdg-mime query default text/x-shellscript xdg-mime query default inode/directory xdg-mime query default text/html xdg-mime query default x-scheme-handler/mailto xdg-mime query default text/plain xdg-mime query default image/jpeg xdg-mime query default application/pdf # set default browser? https://askubuntu.com/questions/1161752/how-can-i-configure-a-domain-specific-default-browser gio mime x-scheme-handler/http gio mime x-scheme-handler/https xdg-settings set default-web-browser chromium-browser.desktop
Configure user default MIME-Type application
#xdg-mime default code.desktop text/plain xdg-mime default code_code.desktop text/plain xdg-mime default code_code.desktop application/x-shellscript
# old
https://wiki.selfhtml.org/wiki/MIME-Type/%C3%9Cbersicht#T
by user
sudo apt-get install -y tinyproxy sed -i 's|#Allow 192.168.0.0/16|Allow 192.168.0.0/16|g' /etc/tinyproxy.conf sed -i 's|Port 8888|Port 8080|g' /etc/tinyproxy.conf Port 80 Allow 10.0.0.0/8 FilterExtended On FilterURLs On FilterDefaultDeny Yes Filter "/etc/tinyproxy/whitelist" #Filter "/etc/tinyproxy/filter" service tinyproxy restart
# deb download
# https://code.visualstudio.com/docs/setup/linux
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo install -o root -g root -m 644 microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main" > /etc/apt/sources.list.d/vscode.list'
sudo apt-get install apt-transport-https
sudo apt-get update
sudo apt-get install code # or code-insiders
# manual download
wget -q https://update.code.visualstudio.com/latest/linux-deb-x64/stable -O /tmp/code.deb
Install
sudo apt install -y snapd
CLI
snap find
snap install
Configure proxy
sudo mkdir -p /etc/systemd/system/snapd.service.d/
echo -e '[Service]\nEnvironment="http_proxy=http://proxy.example.com:3128/"' | sudo tee /etc/systemd/system/snapd.service.d/http-proxy.conf
echo -e '[Service]\nEnvironment="https_proxy=http://proxy.example.com:3128/"' | sudo tee /etc/systemd/system/snapd.service.d/https-proxy.conf
sudo systemctl daemon-reload
sudo systemctl restart snapd
# debug proxy
systemctl show snapd | grep proxy
Ubuntu
https://cloud-images.ubuntu.com/releases/
https://cloud-images.ubuntu.com/minimal/releases/
# latest
https://cloud-images.ubuntu.com/trusty/current/trusty-server-cloudimg-amd64-disk1.img
https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img
https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img
https://cloud-images.ubuntu.com/cosmic/current/cosmic-server-cloudimg-amd64.img
https://cloud-images.ubuntu.com/disco/current/disco-server-cloudimg-amd64.img
# allow root login
Homepage
https://github.com/teejee2008/polo
Installation
https://github.com/teejee2008/polo/wiki/Installation
sudo apt-add-repository multiverse
sudo apt-add-repository -y ppa:teejee2008/ppa
sudo apt-get update
sudo apt-get install polo-file-manager
Ansible
https://github.com/panticz/ansible/tree/master/roles/polo/
sudo apt install -y qemu-kvm cloud-image-utils
wget https://cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.img
# cat seed
#cloud-config
password: ubuntu
chpasswd: { expire: False }
ssh_pwauth: True
ssh_import_id: ${USER}
cloud-localds seed.img seed
sudo kvm-spice -m 2048 -drive file=ubuntu-18.04-server-cloudimg-amd64.img,if=virtio,cache=writeback -cdrom seed.img -net nic,model=virtio -net user,hostfwd=tcp::222-:22
# -balloon virtio
# login credentials:
user: ubuntu
pass: ubuntu
ssh ubuntu@localhost:2222
Install from repository
sudo apt-get install -y prometheus
# optional
sudo apt-get install -y prometheus-node-exporter
sudo apt-get install -y prometheus-alertmanager
sudo apt-get install -y prometheus-pushgateway
Ansible installation
https://github.com/panticz/ansible/tree/master/roles/prometheus
- hosts: localhost
roles:
- prometheus
Login
http://SERVER_IP:9090/
Commands
avg_over_time(node_memory_MemAvailable[5m])/1024/1024
Repositroy