vnc server install ubuntu

tight vnc server install

apt -y install  tightvncserver

 

service file for tightvnc 

https://gist.github.com/spinxz/1692ff042a7cfd17583b

 

tutorial ubuntu 20 tightvnc

https://www.youtube.com/watch?v=oHm7B3hRSP0 

vnc on ubuntu 24

https://www.reddit.com/r/Ubuntu/comments/1i45x1u/how_to_set_up_vnc_server_on_ubuntu_2404_with/

 

various vnc on ubuntu 22

https://help.ubuntu.com/community/VNC/Servers

 

 

telnetd installation on linux

install with

sudo apt -y install telnetd

if not started automatically on install check

/etc/inetd.conf 

for telnet enabled being commented out.

remove commenting which disables inetd handling the service and run

sudo systemctl restart inetutils-inetd.service

example discussed for raspberrypi os

https://forums.raspberrypi.com/viewtopic.php?t=369500

Yahoo / Thunderbird login changes / notes

Note / announcement about yahoo / thunderbird login

Apparently related to having more than one account logged into from a Thunderbird instance using this authentication method.  Need to set up multiple "cookies" for use on appropriate platform.

Using IMAP to access

https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo

You may have been asked in Thunderbird to log in your Yahoo, ATT or AOL accounts, or seen a notice with the title Upcoming Account Change. This is the result of Thunderbird, as of version 148.0 on February 22, 2026, switching to a more secure authorization protocol known as OAuth2 with PKCE. Below are instructions to assist you in the log in process.

In addition to enhanced security, this update also allows you to access Yahoo, AOL, and ATT calendars and address books in Thunderbird, which is a major new benefit to users. If you need more information, see OAuth2 Authorization below.

You have only one account

If you have only one account, then no change is needed in Thunderbird for PKCE to work. You just log in ("authenticate") by providing your email account and account password (App passwords do not work with OAuth2), and then confirm that Thunderbird may access data on the provider's servers (AOL, ATT, Yahoo, etc). This is a normal and safe process. If you have difficulty, please see Detailed Troubleshooting Steps below.

You have more than one account

If you have more than one account, such as one AOL account and one Yahoo account, to allow PKCE to work you must:

--30--

WSL notes on Win 11

 using notes from 

https://learn.microsoft.com/en-us/windows/wsl/install

Ways to run multiple Linux distributions with WSL

WSL supports running as many different Linux distributions as you would like to install. This can include choosing distributions from the Microsoft Store, importing a custom distribution, or building your own custom distribution.

There are several ways to run your Linux distributions once installed:

From Windows Terminal (Recommended) Using Windows Terminal supports as many command lines as you would like to install and enables you to open them in multiple tabs or window panes and quickly switch between multiple Linux distributions or other command lines (PowerShell, Command Prompt, Azure CLI, etc). You can fully customize your terminal with unique color schemes, font styles, sizes, background images, and custom keyboard shortcuts. 

Learn more.

You can directly open your Linux distribution by visiting the Windows Start menu and typing the name of your installed distributions. For example: "Ubuntu". This will open Ubuntu in its own console window.

From PowerShell, you can enter the name of your installed distribution. For example: ubuntu

From PowerShell, you can open your default Linux distribution inside your current command line, by entering: wsl.exe.

From PowerShell, you can use your default Linux distribution inside your current command line, without entering a new one, by entering:wsl [command]. Replacing [command] with a WSL command, such as: wsl -l -v to list installed distributions or wsl pwd to see where the current directory path is mounted in wsl. From PowerShell, the command Get-Date will provide the date from the Windows file system and wsl date will provide the date from the Linux file system.

The method you select should depend on what you're doing. If you've opened a WSL command line within a PowerShell window and want to exit, enter the command: exit.

Installing Archivebox

Archivebox allows quick saving of web pages.  Uses a plugin, currently using chrome version.

https://www.howtogeek.com/the-internet-is-disappearing-so-i-repurposed-an-old-laptop-to-save-it/

It uses for what I installed, a Docker container

Install with

curl -fsSL 'https://get.archivebox.io' | bash

Command line archive of a page

archivebox add --depth=1 'https://howtogeek.com'.

Install the extension in Chrome, add URL of the server

http://192.168.1.xxx:8000

Must use unencrypted page URL, the server doesn't redirect 443 to the 8000 server port

The extension has two modes: Allowlist and BlockList. In Allowlist mode, it won't archive anything unless you specify a web domain (like howtogeek.com) as ones you "allow" to be automatically archived by ArchiveBox when you visit them. 

referral in article to Kiwix

--30--

Install and enable telnet daemon on Raspberry Pi

Telnetd isn't enabled by default.

sudo apt -y install telnetd

Edit /etc/inetd.conf and uncomment line 23 (line number is just a co-incidence).

Code: Select all

#:STANDARD: These are standard services.

telnet  stream  tcp     nowait  root    /usr/sbin/tcpd  /usr/sbin/telnetd

Restart the inetd service

Code: Select all

sudo systemctl restart inetutils-inetd.service

--30-- 

Bulk application installer utility

 

https://tuxmate.com/

--30--

Transfer package list from one linux system to new install

 

Open the terminal on your old machine and enter this command. It creates a list of all packages you manually installed.

apt-mark showmanual > packages.txt

Transfer the packages.txt file to the PC with the new installation. Open a terminal in the that navigate to the folder where you kept the packages.txt file. Then run this command.

sudo xargs apt install -y

--30--

disable windows 10, 11 activity history storage on local device

 

Activity history going to MS should be off by default.  To disable it use this

 

Stop saving activity history locally on your device

1. Select Start , then select Settings > Privacy > Activity history.

2. Clear the Store my activity history on this device checkbox.

    

https://support.microsoft.com/en-us/windows/-windows-activity-history-and-your-privacy-2b279964-44ec-8c2f-e0c2-6779b07d2cbd 

 

angry ip scanner notes

angry ip scanner program on windows looses the preferences upon exit, which sucks.

the settings can be copied and pasted from here if need be

ports:

,9090,21,22,23,3389,2022

change display to hosts with open ports

Generated by Angry IP Scanner 3.9.2

https://angryip.org

Scanned 192.168.1.0 - 192.168.1.255

Nov 10, 2025, 10:36:07 AM

IP              Ping            Hostname                Ports           

192.168.1.1     12 ms           OpenWrt.lan             80,443          

192.168.1.100   5 ms            raspberrypi52-2.lan     22,80,3389,9090 

192.168.1.104   5 ms            nas-EA-E5-98.lan        21,22,80,443    

192.168.1.105   1881 ms         DESKTOP-S4BMUVT-2.lan   3389            

192.168.1.109   61 ms           HP3A0D26.lan            80,443,8080     

192.168.1.110   5 ms            [n/a]                   9090            

192.168.1.113   49 ms           vmnu2.lan               22,80,3389,9090 

192.168.1.116   1791 ms         DESKTOP-LDFC81I.lan     3389            

192.168.1.140   5 ms            debian12.lan            22,80,3389,9090 

192.168.1.142   69 ms           LWIP-3.lan              8080            

192.168.1.152   1 ms            DESKTOP-MF0DK11.lan     3389            

192.168.1.153   577 ms          jws-Latitude-D520.lan   22,80,3389,9090 

192.168.1.158   1932 ms         DESKTOP-DEKG3G4.lan     3389            

192.168.1.161   5 ms            raspberrypi52.lan       22,80,3389,9090 

192.168.1.162   4 ms            cubox-i.lan             22,80,3389,9090 

192.168.1.174   38 ms           acer1.lan               22,80,3389,8080,9090

192.168.1.176   66 ms           rpi32b.lan              22              

192.168.1.177   59 ms           rpi16a.lan              22,80,3389,9090 

192.168.1.181   47 ms           raspberrypi401.lan      22,80,3389,9090 

192.168.1.182   9 ms            vmnu6.lan               22,23,80,3389,9090

192.168.1.183   9 ms            [n/a]                   22,80,443       

192.168.1.190   380 ms          rpi81.lan               22,3389,9090    

192.168.1.195   6 ms            nas-C1-5F-52.lan        22,80,443       

192.168.1.200   5 ms            ubuntu1804.lan          22,80,3389,8080,9090

192.168.1.205   5 ms            rpi16-2.lan             22,80,3389,9090 

192.168.1.206   116 ms          rpi02.lan               22,80,3389,9090 

192.168.1.207   4 ms            rpi16.lan               22,80,3389,9090 

192.168.1.208   5 ms            jws-Latitude-E7450-2.lan22,80,3389,9090 

192.168.1.210   4 ms            MiniSys.lan             3389            

192.168.1.220   336 ms          rbw-Latitude-D520.lan   22,80,3389      

192.168.1.223   44 ms           win10.lan               3389            

192.168.1.226   5 ms            rpi5-2.lan              22,80,3389,9090 

192.168.1.227   8 ms            rpi5.lan                22,80,3389,9090 

192.168.1.245   54 ms           raspberrypi64.lan       22,80,3389,9090 

192.168.1.253   5 ms            HT802.lan               80              

192.168.1.254   4 ms            DESKTOP-CU96QH6.lan     3389            

--30--

run windows "run" tasks with elevated privileges

One can run tasks from the "Windows" button, run line w/o finding the executable and using that method to launch as administrator.

Alternatively, press Win + R, type taskschd.msc, and press Ctrl + Shift + Enter to launch with elevated privileges. 

--30--

Windows antimalware executable task running as cpu hog

 

This shows how to reduce the priority of this task, which can run very long for no reason to be at high priority.

It's the windows cache maintenance.

https://learn.microsoft.com/en-us/answers/questions/3230441/high-cpu-usage-because-of-antimalware-service-exec

1. Press Windows key + R. This will open Run. Alternatively, you can go to Start and search for Run.
2. In Run dialog box, type taskschd.msc and hit enter.
3. Navigate to Task Scheduler Library > Microsoft > Windows > Windows Defender.
4. On the right hand pane, double-click on Windows Defender Scheduled Scan.
5. On the General tab, uncheck the option Run with highest privileges.
6. Click on Conditions tab and uncheck all the options.
7. Click on OK.

right click the task to change the privileges off

--30--

vtclock block letter ascii clock runs interminal

 

vtclock

https://github.com/dse/vtclock/

also note on piclock.  Too much extra, but graphical

https://github.com/n0bel/PiClock/blob/master/Documentation/Overview.md

https://webonastick.com/vtclock/

--030--

vnc server security problem with Raspberry pi builtin vnc

 

https://www.cpmspectrepi.uk/raspberry_pi/MoinMoinExport/RealVNC_RaspiPIOS_Bullseye.html

https://forums.raspberrypi.com/viewtopic.php?t=352458

vncserver -Encryption PreferOff -Authentication VncAuth

--30--

installing angry ipscanner on Ubuntu 18.04

 

Ubuntu 18.04 is released in 2018, so need down rev java and angry ip scanner to match

sourceforge had a page with revisions as or 1/14/2026

https://sourceforge.net/projects/ipscan/files/ipscan3-binary/

apt -y install rpm fakeroot

apt install openjdk-21-jdk

 dpkg --install ipscan_3.5.3_amd64.deb

deb file is in projects/local-systems/angry-ip/ubuntu18

ports for configuration.  Not retained on linux

 

80,443,8080,9090,3389,5900,5901,5902,5903,4200,21,22,23