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

cat <<EOF> /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

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

sudo service xinetd restart

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

wget http://releases.libreelec.tv/LibreELEC-RPi2.arm-9.1.002.img.gz -O /tmp/LibreELEC-RPi2.arm-9.1.002.img.gz
zcat /tmp/LibreELEC-RPi2.arm-9.1.002.img.gz | sudo dd of=/dev/mmcblk0
sync

user: root
pass: libreelec

# show VPN objects
openstack vpn ipsec site connection list
openstack vpn endpoint group list
openstack vpn service list
openstack vpn ipsec policy list
openstack vpn ike policy list
 
# show IP
openstack vpn service list --long
openstack vpn service list -c ID -f value | xargs -i openstack vpn service show {}
openstack vpn ipsec site connection list -c ID -f value | xargs -L1 openstack vpn ipsec site connection show

# List your volumes
openstack volume list
 
openstack volume type list --public --long
openstack volume backend pool list
cinder --os-volume-api-version 3.50 attachment-delete <attachment_id>
 
openstack volume set --non-bootable <VOLUME_ID>

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

openstack server rescue --image systemrescuecd ${SERVER_ID}

openstack server unrescue ${SERVER_ID}