BullDog Notes

this page is junk, but useful for me for now

=================al servers ========================

VNC/Servers - Community Help Wiki

   *>url  https://help.ubuntu.com/community/VNC/Servers

============== vino ============================

vino - Enable remote VNC from the commandline? - Ask Ubuntu

   *>url  https://askubuntu.com/questions/4474/enable-remote-vnc-from-the-commandline

Just running

/usr/lib/vino/vino-server should do the job.

Once you have access to your server, I would recommend that you add it to Autostarted Apps so it is always started.

You'll probably like change some settings with :

vino-preferences be very careful when you run vino-preference on a remote machine, if you uncheck "Allow other users to control your desktop", you won't be able to check it back.

or to edit :

~/.gconf/desktop/gnome/remote_access/%gconf.xml Here a sample file :

<?xml version="1.0"?> <gconf>

   <entry name="vnc_password" mtime="1289267042" type="string">
       <stringvalue>cXdlcnR5</stringvalue>
   </entry>
   <entry name="view_only" mtime="1289262982" type="bool" value="false"/>
   <entry name="prompt_enabled" mtime="1254965869" type="bool" value="false"/>
   <entry name="authentication_methods" mtime="1289267034" type="list" ltype="string">

<stringvalue>vnc</stringvalue>

</entry> <entry name="enabled" mtime="128926

Just a few scribbled links

• ubuntu enable nas access - Google Search
• ubuntu enable nfs access - Google Search
• [ubuntu How do I access a NAS on my home network? ]
• Mount samba shares with utf8 encoding using cifs
• Howto: Fix Windows share browsing issues
• Editing BullDog Notes - OpenCircuits

VNC SSH

• Using VNC with SSH

• How to Configure a VNC Server to Use an SSH Tunnel on Ubuntu 14.04 LTS | Liquid Web Knowledge Base
• HOWTO: Tunnel VNC through SSH from a windows machine [Archive - Ubuntu Forums ]

• gnome - How do I set up an encrypted SSH tunnel for VNC? - Ask Ubuntu

misc vnc notes

Goal

I would like to use VNC to access a Ubuntu 18.04 system from windows like I do with the Raspberry Pi.

• Connect to the existing desktop
• Keep the connection secure

This has been a bit of a struggle for a number of gotchas.

Overview

As I understand it ( may not have figured it out all the way )

• VNC has a server ( run on the machine you wish to view ) and viewer ( run on the machine you wish to access).
• In addition to having several components there are many versions of VNC. Directions for each differ, and differ across versions of Linux.
• I will focus on Tiger VNC and Ubuntu 18.04
• To get VNC working there seem to be various components.
  • VNC server
  • Desktop software ( there are many different ones, you may need to install -- however here I want to run on the default Ubuntu 18.04 desktop so no install is necessary )
  • A way to connect to the VNC server -- many servers will only connect to localhost 127.0.0.1 so we will use vnc tunnelling to make a remote connection appear to be on localhost

Other Software Used

before installs

• sudo apt update

• sudo apt upgrade

Process viewer (htop)

• Why This will let you see what vnc software is running.
• Install >> sudo apt -install htop
• Run >> htop
• Exit >> ctrl-c

IfConfig

• Why see your server's tcp ip address
• Install >> sudo apt -install ??
• Run >> ifconfig
• Exit >> just ends

SSH

• Install >> sudo apt install openssh-server

what

might this help gconf-editor

Ubuntu text editor ( gedit )

• Install >> apt-get -install ??
• Run >> htop

Tiger VNC

• Note: there may already be vncserver software installed perhaps vineo ??

• Install >> sudo apt-get install tigervnc-scraping-server

• Install ( may not be needed ) >> sudo apt install tigervnc-standalone-server tigervnc-viewer

• Set password >>vncpasswd << gotcha, if run server with no password set. If this does not run find an install -- perhaps full tiger vnc to get it.

• Run gotcha >> x0tigervncserver << but gotcha, needs to be pointed to password file so
• Run >> x0tigervncserver -PasswordFile ~/.vnc/passwd

• Run gotcha this is not the scraping server may not be installed >> tigervncserver -xstartup /usr/bin/xterm

• Set password >>vncpasswd << gotcha, if run server with no password set.

• edit configuration file >> use file browser but .vnc is hidden so turn on hidden file abillity ( one of its menus )

• Manual Page: may not be the best >> https://man.cx/x0tigervncserver(1)

• set password with >> vncpasswd
• see running servers >> vncserver -list
• what runs with command vncserver >> which vncserver

    right answer is ?? 

/usr/bin/vncserver

• what about owner of the .Xauthority file, https://askubuntu.com/questions/772090/how-can-i-resolve-x11-problem-with-putty-if-i-have-this-error-putty-x11-proxy

PuTTY X11 proxy: Unsupported authorisation protocol

How to start a vnc server for the actual display (scraping) with TigerVNC https://www.howtoforge.com/tutorial/how-to-start-a-vnc-server-for-the-actual-display-scraping-with-tigervnc/

3

no keyboard untill 1 - > 4 gig memory still running slugish??

spyder

tiger vnc

sudo apt install tigervnc-standalone-server tigervnc-viewer

start in terminal with

vncserver

vncviewer

russ@UbuntuBase-VB:~$ vncserver

New 'UbuntuBase-VB:1 (russ)' desktop at :1 on machine UbuntuBase-VB

Starting applications specified in /etc/X11/Xvnc-session Log file is /home/russ/.vnc/UbuntuBase-VB:1.log

Use xtigervncviewer -SecurityTypes VncAuth -passwd /home/russ/.vnc/passwd :1 to connect to the VNC server.

russ@UbuntuBase-VB:~$ vncserver

loopback IP address is 127.0.0.1

---

not done yet ------

Start TigerVNC vncserver at boot

The ubuntu install package also registers a system service, making it easy to define listening vnc servers on startup. Edit the file /etc/default/vncserver and add the display number and user to start as:

sudo gedit /etc/default/vncserver

VNCSERVERS="1:myusername"

Then enable the service at boot with:

sudo update-rc.d vncserver defaults

---

end not done

vncserver in terminal to start

Use xtigervncviewer -SecurityTypes VncAuth -passwd /home/russ/.vnc/passwd :1 to connect to the VNC server.

---

more installs --------------------

remmina

sudo apt install openssh-server

---

done ------------------

https://linuxize.com/post/how-to-install-webmin-on-ubuntu-18-04/

sudo apt install software-properties-common apt-transport-https wget

sudo add-apt-repository "deb [arch=amd64] http://download.webmin.com/download/repository sarge contrib"

etting up libauthen-pam-perl (0.16-3build5) ... Setting up apt-show-versions (0.22.7ubuntu1) ...

• • initializing cache. This may take a while **

Processing triggers for ureadahead (0.100.0-21) ... Setting up webmin (1.910) ... Webmin install complete. You can now login to https://UbuntuBase-VB:10000/ as root with your root password, or as any user who can use sudo to run commands as root. Processing triggers for systemd (237-3ubuntu10.21) ... Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Processing triggers for ureadahead (0.100.0-21) ... russ@UbuntuBase-VB:~$

---

what is running tiger?? ----------------

sudo apt-get install htop htop

---

start with

tigervncserver -xstartup /usr/bin/xterm

remania connccts ok with 127.0.0.1:5904 password password

590 desktop number may get the desktop number whhen start tigervnc with the command

vncserver ??

how do I know so little

see what is going on with htop

   vncserver -kill :1

vnc viewerr is also installed

this seems pretty good

How to remotely display and control a Linux desktop from a Windows or Linux system using VNC https://www.linuxtopia.org/HowToGuides/VNC_setup_Linux_Windows.html

ls ~ -a to see home hidden files there is a .vnc

sudo gedit ~/.vnc/default.tigervnc

How to list VNC server sessions on Ubuntu Linux $ vncserver -list

ifconfig -a. ip addr (ip a)

---

sudo apt-get install openssh-server

Input your password (no visual feedback while typing) when it prompts and hit Enter.

openssh-server-bionic

3. Once installed, SSH starts automatically in background. And you can check its status via command:

sudo systemctl status ssh.service

---

x0tigervncserver Ubuntu Manpage: x0tigervncserver - TigerVNC Server for X displays http://manpages.ubuntu.com/manpages/bionic/man1/x0tigervncserver.1.html

x0tigervncserver -PasswordFile ~/.vnc/default.tigervnc

gedit ~/.vnc/default.tigervnc