a) the most recent DVD of my writing is in the DVD drive of the large Windows 10 computer which you gave me a few years ago. This machine is on the south facing desk in the 1st floor east bedroom. It password is simply a space. This computer contains no significant data. b) The Dell Laptop on the kitchen table: The laptop on the kitchen table and the accessory 250 Gb harddrive coupled to it contain, my website and my presently active writing. This machine is accessible also from the Internet with the URL ernstjmeyer.ddns.net Access to the website is by http:// (read only), Access to all files is by ssh and sftp, read and write. The password for both local and internet access is e5ts71beil%$? The (Debian) operating system is located in the usb stick, which should boot when the electrical switch on the keyboard is turned on. On failure to boot, the computer may be recycled by transiently interrupting all power by disconnecting the battery (opening and closing the battery compartment - accessible from the bottom of the computer while the cable from the power supply is also disconnected. The USB stick with the operating system and a 250 GB external accessory hard drive is connected via an external USB hub. On booting only the file system on the USB stick is engaged, the base system directory "/" and the base user directory "/home/meyer". The external hard drive is primarily detected at /dev/hdc1 . When having been intitially detected as /dev/hdc1, the external hard drive connection is transiently broken, (as frequently occurs from the poor USB connection) then the hard drive is detected not as /dev/hdc1, but as /dev/hdd1, or /dev/hde1 ... etc. The external hard drive can be mounted only by root. The command e.g. from /home/meyer is "su", password "wurzel". The relevant commands are: "umount /dev/sdc1", "mount -t ext4 /dev/sdc1" or "umount /dev/sdd1", "mount -t ext4 /dev/sdd1" or "umount /dev/sde1", "mount -t ext4 /dev/sde1" etc. When the mount command fails, the file system is repaired with e2fsck -y /dev/sdc1 ... etc the command "df" displays mounted file systems; this command however may be misleading, since it does not necessarily indicate file systems which are defective or have been (accidentally) disconnected. Whenever the Debian computer is rebooted, the ddns.net proxy must be initialized by root with the commands: su (password) wurzel noip2 The command "noip2 -S" will display the status of the ddns.net connection The apache website is found on the USB stick at /var/www/html the command ln -s /disk/var/www/html /var/www/html links the large website directory tree /disk/var/www/html on the external hard drive to the apache website /var/www/html on the USB stick. Users accessing the website through http://ernstjmeyer.ddns.net, through http://192.168.0.4, or through the present dynamic address, 73.253.254.96 (which is subject to change) will be presented with the protocol of /disk/var/www/html/index.html By opening /disk/var/www/html/index.html with a text editor one can explore and modify this directory and acsertain thw structure of the html-tree which it defines. =============== The Asus Aspire 5336-2634 laptop in the east bedroom of the second floor of the Addition is programmed with mirror images of the Dell-Debian laptop on the kitchen, with the following differences: The password is mut12z. The Asus Aspire 5336-2634 laptop is booted from a USB stick programmed with Ubuntu mounted as "/" on /dev/sdb1 The external 250 Gb attached to the Dell-Debian laptop is replaced by /dev/sda1 which is mounted not on /disk but on /sda Its local area access address (192.168.0.7) can be accessed only by the LAN =============== The laptop in the East room on the 3rd floor of the Addition password "mut12z" is booted from a USB stick with Ubuntu, and is connected to an accessory external 250 Gb hard drive. If I remember correctly, it's programming is identical with the Debian-Dell in the kitchen, except for the Ubuntu operating system, and for the circumstance that the external drive is almost empty of all but the most recent backed up writing. At this time, I can't climb the stairs to ascertain the programming details.