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

https://yt-dl.org/update
https://github.com/ytdl-org/youtube-dl/releases

Installation
https://github.com/ytdl-org/youtube-dl#installation

wget -q https://yt-dl.org/downloads/latest/youtube-dl -O ~/.local/bin/youtube-dl
sudo chmod a+x ~/.local/bin/youtube-dl

# download audio (mp3) only
youtube-dl --extract-audio --audio-format mp3 -o "%(uploader)s/%(title)s.%(ext)s" https://www.youtube.com/watch?v=XXX

# download whole channel starting from 3 months
youtube-dl --extract-audio --audio-format mp3 -o "%(uploader)s/%(upload_date)s_%(title)s.%(ext)s" --dateafter now-3months -v https://www.youtube.com/user/OpenStackFoundation/videos

# update
sudo youtube-dl -U

# output template
https://github.com/ytdl-org/youtube-dl/blob/master/README.md#output-template

Install tftp server package
sudo apt-get install -y xinetd tftpd tftp

Create xinetd tftp configuration

cat < /etc/xinetd.d/tftp
service tftp
{
protocol        = udp
port            = 69
socket_type     = dgram
wait            = yes
user            = nobody
server          = /usr/sbin/in.tftpd
server_args     = /tftpboot
disable         = no
}
EOF

Create /tftpboot folder

sudo mkdir /tftpboot
sudo chmod -R 777 /tftpboot
sudo chown -R nobody /tftpboot

Restart the xinetd service

sudo service xinetd restart

Testing our tftp server

ip a add 192.168.1.1/24 dev eth0:1
echo foo > /tftpboot/testfile
tftp 192.168.1.1
get testfile
quit

Links
https://askubuntu.com/questions/201505/how-do-i-install-and-run-a-tftp-server

Download rescure iso
wget https://download.grml.org/grml64-small_2022.11.iso

Create rescure system

openstack image create systemrescuecd \
  --file grml64-small_2022.11.iso \
  --disk-format iso \
  --container-format bare \
  --min-ram 512 \
  --property hw_cdrom_bus=scsi

# show image
openstack image list --name systemrescuecd

Attach rescure system

openstack server rescue --image systemrescuecd ${SERVER_ID}

# Login to VM console and fix issues
Detach rescure system

openstack server unrescue ${SERVER_ID}

Links
https://help.switch.ch/engines/documentation/rescue-vm/
https://grml.org/

Install from snap repository

# install
sudo snap install code --classic

Install from APT repository

# 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
sudo dpkg -i /tmp/code.deb

# create starter
cat << EOF> /usr/share/applications/code.desktop
[Desktop Entry]
Name=Visual Studio Code
Exec=/snap/bin/code %U
Icon=/snap/code/current/usr/share/pixmaps/com.visualstudio.code.png
Type=Application
StartupNotify=false
Categories=Utility;TextEditor;Development;IDE;
Actions=new-empty-window;
EOF

Configure Visual Studio Code as default text editor

xdg-mime default code.desktop text/html
# xdg-mime default code.desktop text/plain
xdg-mime default code_code.desktop text/plain

# old
mkdir -p ~/.local/share/applications
cat <> ~/.local/share/applications/mimeapps.list
[Default Applications]
text/plain = code.desktop
text/x-shellscript = code.desktop
EOF

sed -i 's|text/plain = .*|text/plain = code.desktop|g' ~/.local/share/applications/mimeapps.list

Keyboard shortcuts for Linux
https://code.visualstudio.com/shortcuts/keyboard-shortcuts-linux.pdf

Oracle SQL Developer Extension for VSCode
https://marketplace.visualstudio.com/items?itemName=Oracle.sql-developer

ext install Oracle.sql-developer

Extensions
https://github.com/viatsko/awesome-vscode

Terraform
# code fromatting works only when directory is opened?
https://medium.com/nerd-for-tech/how-to-auto-format-hcl-terraform-code-in-visual-studio-code-6fa0e7afbb5e
https://marketplace.visualstudio.com/items?itemName=HashiCorp.terraform
https://github.com/hashicorp/vscode-terraform

Install Mellanox CLI tools (MFT)
http://www.mellanox.com/page/management_tools

#URL=https://www.mellanox.com/downloads/MFT/mft-4.15.0-104-x86_64-deb.tgz
URL=https://www.mellanox.com/downloads/MFT/mft-4.16.3-12-x86_64-deb.tgz

# install requirements
apt update
apt install -y gcc make dkms linux-headers-$(uname -r)

# download mft
wget -qO- ${URL} | tar xvz -C /tmp

# install mft
/tmp/mft-*-deb/install.sh

Enable UEFI and PXE boot

mst start
#for MST in $(ls /dev/mst/* | egrep -v '\.1'); do
for MST in $(ls /dev/mst/*); do
    echo ${MST}
    mlxconfig -d ${MST} -y set EXP_ROM_UEFI_x86_ENABLE=1
    mlxconfig -d ${MST} -y set EXP_ROM_PXE_ENABLE=1
    mlxconfig -d ${MST} q | egrep "EXP_ROM"
done

Debug: Show device state

mst status

for MST in $(ls /dev/mst/*); do
    mlxconfig -d ${MST} q
    echo
done