Connection reset by peer (104) #99

PedroCoelhho · 2019-07-30T18:17:05Z

PedroCoelhho
Jul 30, 2019

When i conect from my cliente on server, his disconect and show on the log this mensage: main: read: Connection reset by peer (104).
I need little help, because i don't understand what the connection keeps falling.
Server: Ubuntu 18.04

Epoptes was instaled on package ltsp-server-standalone

alkisg · 2019-08-04T06:21:49Z

alkisg
Aug 4, 2019
Maintainer

What is the output of this command, both on the server and the client?

dpkg-query -W epoptes epoptes-client

Also, which desktop environment are you running, e.g. MATE, GNOME, KDE?

Finally, are you using thin or fat LTSP clients?

0 replies

PedroCoelhho · 2019-08-06T13:22:45Z

PedroCoelhho
Aug 6, 2019
Author

command exit:
dpkg-query -W epoptes epoptes-client

Client
epoptes 1.0.1-2+t201812111158ubuntu18.04.1
epoptes-client 1.0.1-2+t201812111158ubuntu18.04.1

Server
epoptes 1.0.1-2+t201812111158ubuntu18.04.1
epoptes-client 1.0.1-2+t201812111158ubuntu18.04.1

MATE environment
FAT CLIENTS

0 replies

alkisg · 2019-08-06T14:18:36Z

alkisg
Aug 6, 2019
Maintainer

Open a terminal on the server, and run:

epoptes

Then open a terminal on a client, and run:

/usr/sbin/epoptes-client

Wait until the problem happens, then copy/paste all the output of both terminals here.

0 replies

PedroCoelhho · 2019-08-06T17:56:18Z

PedroCoelhho
Aug 6, 2019
Author

Enswer Client

atendimento7@ltsp230:~$ /usr/sbin/epoptes-client
Epoptes-client connecting to server:789... ...done
###############################################################
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
#@ @#
#@ ** WARNING ** WARNING ** WARNING ** WARNING ** @#
#@ @#
#@ YOU ARE RUNNING X11VNC WITHOUT A PASSWORD!! @#
#@ @#
#@ This means anyone with network access to this computer @#
#@ may be able to view and control your desktop. @#
#@ @#
#@ >>> If you did not mean to do this Press CTRL-C now!! <<< @#
#@ @#
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
#@ @#
#@ You can create an x11vnc password file by running: @#
#@ @#
#@ x11vnc -storepasswd password /path/to/passfile @#
#@ or x11vnc -storepasswd /path/to/passfile @#
#@ or x11vnc -storepasswd @#
#@ @#
#@ (the last one will use ~/.vnc/passwd) @#
#@ @#
#@ and then starting x11vnc via: @#
#@ @#
#@ x11vnc -rfbauth /path/to/passfile @#
#@ @#
#@ an existing ~/.vnc/passwd file from another VNC @#
#@ application will work fine too. @#
#@ @#
#@ You can also use the -passwdfile or -passwd options. @#
#@ (note -passwd is unsafe if local users are not trusted) @#
#@ @#
#@ Make sure any -rfbauth and -passwdfile password files @#
#@ cannot be read by untrusted users. @#
#@ @#
#@ Use x11vnc -usepw to automatically use your @#
#@ ~/.vnc/passwd or ~/.vnc/passwdfile password files. @#
#@ (and prompt you to create ~/.vnc/passwd if neither @#
#@ file exists.) Under -usepw, x11vnc will exit if it @#
#@ cannot find a password to use. @#
#@ @#
#@ @#
#@ Even with a password, the subsequent VNC traffic is @#
#@ sent in the clear. Consider tunnelling via ssh(1): @#
#@ @#
#@ http://www.karlrunge.com/x11vnc/#tunnelling @#
#@ @#
#@ Or using the x11vnc SSL options: -ssl and -stunnel @#
#@ @#
#@ Please Read the documention for more info about @#
#@ passwords, security, and encryption. @#
#@ @#
#@ http://www.karlrunge.com/x11vnc/faq.html#faq-passwd @#
#@ @#
#@ To disable this warning use the -nopw option, or put @#
#@ 'nopw' on a line in your ~/.x11vncrc file. @#
#@ @#
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
###############################################################
06/08/2019 13:14:26 x11vnc version: 0.9.13 lastmod: 2011-08-10 pid: 8510
06/08/2019 13:14:26 Using X display :7.0
06/08/2019 13:14:26 rootwin: 0x106 reswin: 0x2600001 dpy: 0xff3cfcd0
06/08/2019 13:14:26
06/08/2019 13:14:26 ------------------ USEFUL INFORMATION ------------------
06/08/2019 13:14:26 X DAMAGE available on display, using it for polling hints.
06/08/2019 13:14:26 To disable this behavior use: '-noxdamage'
06/08/2019 13:14:26
06/08/2019 13:14:26 Most compositing window managers like 'compiz' or 'beryl'
06/08/2019 13:14:26 cause X DAMAGE to fail, and so you may not see any screen
06/08/2019 13:14:26 updates via VNC. Either disable 'compiz' (recommended) or
06/08/2019 13:14:26 supply the x11vnc '-noxdamage' command line option.
06/08/2019 13:14:26
06/08/2019 13:14:26 Wireframing: -wireframe mode is in effect for window moves.
06/08/2019 13:14:26 If this yields undesired behavior (poor response, painting
06/08/2019 13:14:26 errors, etc) it may be disabled:
06/08/2019 13:14:26 - use '-nowf' to disable wireframing completely.
06/08/2019 13:14:26 - use '-nowcr' to disable the Copy Rectangle after the
06/08/2019 13:14:26 moved window is released in the new position.
06/08/2019 13:14:26 Also see the -help entry for tuning parameters.
06/08/2019 13:14:26 You can press 3 Alt_L's (Left "Alt" key) in a row to
06/08/2019 13:14:26 repaint the screen, also see the -fixscreen option for
06/08/2019 13:14:26 periodic repaints.
06/08/2019 13:14:26
06/08/2019 13:14:26 XFIXES available on display, resetting cursor mode
06/08/2019 13:14:26 to: '-cursor most'.
06/08/2019 13:14:26 to disable this behavior use: '-cursor arrow'
06/08/2019 13:14:26 or '-noxfixes'.
06/08/2019 13:14:26 using XFIXES for cursor drawing.
06/08/2019 13:14:26 GrabServer control via XTEST.
06/08/2019 13:14:26
06/08/2019 13:14:26 Scroll Detection: -scrollcopyrect mode is in effect to
06/08/2019 13:14:26 use RECORD extension to try to detect scrolling windows
06/08/2019 13:14:26 (induced by either user keystroke or mouse input).
06/08/2019 13:14:26 If this yields undesired behavior (poor response, painting
06/08/2019 13:14:26 errors, etc) it may be disabled via: '-noscr'
06/08/2019 13:14:26 Also see the -help entry for tuning parameters.
06/08/2019 13:14:26 You can press 3 Alt_L's (Left "Alt" key) in a row to
06/08/2019 13:14:26 repaint the screen, also see the -fixscreen option for
06/08/2019 13:14:26 periodic repaints.
06/08/2019 13:14:26
06/08/2019 13:14:26 XKEYBOARD: number of keysyms per keycode 7 is greater
06/08/2019 13:14:26 than 4 and 195 keysyms are mapped above 4.
06/08/2019 13:14:26 Automatically switching to -xkb mode.
06/08/2019 13:14:26 If this makes the key mapping worse you can
06/08/2019 13:14:26 disable it with the "-noxkb" option.
06/08/2019 13:14:26 Also, remember "-remap DEAD" for accenting characters.
06/08/2019 13:14:26
06/08/2019 13:14:26 X FBPM extension not supported.
06/08/2019 13:14:26 X display is capable of DPMS.
06/08/2019 13:14:26 --------------------------------------------------------
06/08/2019 13:14:26
06/08/2019 13:14:26 initialize_xdisplay_fb: vis_str set to: TrueColor:32

Visual Info:
set_visual("TrueColor:32")
visual_depth: 32
visual: 4
initialize_xdisplay_fb()
Visual*: 0x55d2ff3d1a20
visualid: 0x63
screen: 0
depth: 32
class: 4
red_mask: 0x00ff0000 00000000111111110000000000000000
green_mask: 0x0000ff00 00000000000000001111111100000000
blue_mask: 0x000000ff 00000000000000000000000011111111
cmap_size: 256
bits b/rgb: 8

06/08/2019 13:14:26 Default visual ID: 0x63
06/08/2019 13:14:26 initialize_screen: fb_depth/fb_bpp/fb_Bpl 32/32/5120
06/08/2019 13:14:26
06/08/2019 13:14:26 X display :7.0 is 32bpp depth=32 true color
06/08/2019 13:14:26
06/08/2019 13:14:26 Autoprobing TCP port
06/08/2019 13:14:26 Autoprobing selected TCP port 5900
06/08/2019 13:14:26 Autoprobing TCP6 port
06/08/2019 13:14:26 Autoprobing selected TCP6 port 5900
06/08/2019 13:14:26 listen6: bind: Address already in use
06/08/2019 13:14:26 Not listening on IPv6 interface.
06/08/2019 13:14:26
06/08/2019 13:14:26 Xinerama is present and active (e.g. multi-head).
06/08/2019 13:14:26 Xinerama: number of sub-screens: 1
06/08/2019 13:14:26 Xinerama: no blackouts needed (only one sub-screen)
06/08/2019 13:14:26
06/08/2019 13:14:26 fb read rate: 77 MB/sec
06/08/2019 13:14:26 The X server says there are 10 mouse buttons.
06/08/2019 13:14:26 screen setup finished.
06/08/2019 13:14:26
06/08/2019 13:14:26 WARNING: You are running x11vnc WITHOUT a password. See
06/08/2019 13:14:26 WARNING: the warning message printed above for more info.
06/08/2019 13:14:26

The VNC desktop is: ltsp230:0

Have you tried the x11vnc '-ncache' VNC client-side pixel caching feature yet?

The scheme stores pixel data offscreen on the VNC viewer side for faster
retrieval. It should work with any VNC viewer. Try it by running:

x11vnc -ncache 10 ...

One can also add -ncache_cr for smooth 'copyrect' window motion.
More info: http://www.karlrunge.com/x11vnc/faq.html#faq-client-caching

06/08/2019 13:14:26 Making connection to client on host server port 58979
06/08/2019 13:14:26 other clients:
06/08/2019 13:14:26 Normal socket connection
06/08/2019 13:14:26 Disabled X server key autorepeat.
06/08/2019 13:14:26 to force back on run: 'xset r on' (3 times)
06/08/2019 13:14:26 incr accepted_client=1 for 200.189.61.38:58979 sock=14
06/08/2019 13:14:26 reverse_connect: server:58979/200.189.61.38 OK
06/08/2019 13:14:26 reverse_connect: turning on auth for 200.189.61.38
06/08/2019 13:14:26 Client Protocol Version 3.8
06/08/2019 13:14:26 Protocol version sent 3.8, using 3.8
06/08/2019 13:14:26 client progressed=1 in 0/4 0.001032 s
06/08/2019 13:14:26 rfbProcessClientSecurityType: executing handler for type 1
06/08/2019 13:14:26 rfbProcessClientSecurityType: returning securityResult for client rfb version >= 3.8
06/08/2019 13:14:26 Pixel format for client 200.189.61.38:
06/08/2019 13:14:26 8 bpp, depth 6
06/08/2019 13:14:26 true colour: max r 3 g 3 b 3, shift r 4 g 2 b 0
06/08/2019 13:14:26 Enabling full-color cursor updates for client 200.189.61.38
06/08/2019 13:14:26 Enabling NewFBSize protocol extension for client 200.189.61.38
06/08/2019 13:14:26 Using ZRLE encoding for client 200.189.61.38
06/08/2019 13:14:27 created xdamage object: 0x2600002
06/08/2019 13:14:27 client useCopyRect: 200.189.61.38 -1
06/08/2019 13:14:27 client_set_net: 200.189.61.38 0.0001
06/08/2019 13:14:27 copy_tiles: allocating first_line at size 41
06/08/2019 13:14:28 Pixel format for client 200.189.61.38:
06/08/2019 13:14:28 32 bpp, depth 24, little endian
06/08/2019 13:14:28 true colour: max r 255 g 255 b 255, shift r 16 g 8 b 0
06/08/2019 13:14:28 Enabling full-color cursor updates for client 200.189.61.38
06/08/2019 13:14:28 Enabling NewFBSize protocol extension for client 200.189.61.38
06/08/2019 13:14:28 Switching from ZRLE to hextile Encoding for client 200.189.61.38
06/08/2019 13:14:29 client 1 network rate 77.3 KB/sec (1427.2 eff KB/sec)
06/08/2019 13:14:29 client 1 latency: 100.5 ms
06/08/2019 13:14:29 dt1: 0.0737, dt2: 0.8952 dt3: 0.1005 bytes: 71049
06/08/2019 13:14:29 link_rate: LR_BROADBAND - 100 ms, 77 KB/s
06/08/2019 13:14:35 created selwin: 0x2600003
06/08/2019 13:14:35 called initialize_xfixes()
caught XIO error:
06/08/2019 13:14:40 deleted 40 tile_row polling images.

=======================================

Answer Sever

Tue Aug 6 13:14:26 2019
CConn: Accepted connection from 0.0.0.0::48912
CConnection: Server supports RFB protocol version 3.8
CConnection: Using RFB protocol version 3.8
TXImage: Using default colormap and visual, TrueColor, depth 24.
CConn: Using pixel format depth 6 (8bpp) rgb222
CConn: Using ZRLE encoding

Tue Aug 6 13:14:28 2019
CConn: Throughput 20000 kbit/s - changing to hextile encoding
CConn: Throughput 20000 kbit/s - changing to full colour
CConn: Using pixel format depth 24 (32bpp) little-endian rgb888
CConn: Using hextile encoding

Tue Aug 6 13:14:40 2019
main: read: Connection reset by peer (104)

0 replies

alkisg · 2019-08-06T18:22:29Z

alkisg
Aug 6, 2019
Maintainer

So this happens only when you try to monitor the client?
If so, it sounds like an issue with x11vnc, not epoptes...

0 replies

PedroCoelhho · 2019-08-06T20:32:30Z

PedroCoelhho
Aug 6, 2019
Author

would you have any suggestions on how to proceed?

0 replies

alkisg · 2019-08-07T06:29:38Z

alkisg
Aug 7, 2019
Maintainer

On the server, close epoptes, open a terminal, and run:

xvnc4viewer -listen

On the client, run:

x11vnc -connect server

If this crashes too, file a bug report in x11vnc telling them the errors you see from this minimal test.

By the way, what's the output of this command on the server?

dpkg-query -W x11vnc

0 replies

PedroCoelhho · 2019-08-08T11:46:52Z

PedroCoelhho
Aug 8, 2019
Author

Server

user@ltsp-admin:~$ xvnc4viewer -listen

VNC Viewer Free Edition 4.1.1 for X - built Feb 25 2015 22:57:51
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.

Wed Aug 7 13:53:07 2019
main: Listening on port 5500

Wed Aug 7 13:56:30 2019
CConn: Accepted connection from 0.0.0.0::39258
CConnection: Server supports RFB protocol version 3.8
CConnection: Using RFB protocol version 3.8

Wed Aug 7 13:56:31 2019
TXImage: Using default colormap and visual, TrueColor, depth 24.
CConn: Using pixel format depth 6 (8bpp) rgb222
CConn: Using ZRLE encoding

Wed Aug 7 13:56:37 2019
CConn: Throughput 20142 kbit/s - changing to hextile encoding
CConn: Throughput 20142 kbit/s - changing to full colour
CConn: Using pixel format depth 24 (32bpp) little-endian rgb888
CConn: Using hextile encoding

Wed Aug 7 13:56:43 2019
CConn: Throughput 20000 kbit/s - changing to raw encoding
CConn: Using raw encoding

=================================================================
Client

atendimento7@ltsp230:~$ x11vnc -connect 200.189.61.38
###############################################################
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
#@ @#
#@ ** WARNING ** WARNING ** WARNING ** WARNING ** @#
#@ @#
#@ YOU ARE RUNNING X11VNC WITHOUT A PASSWORD!! @#
#@ @#
#@ This means anyone with network access to this computer @#
#@ may be able to view and control your desktop. @#
#@ @#
#@ >>> If you did not mean to do this Press CTRL-C now!! <<< @#
#@ @#
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
#@ @#
#@ You can create an x11vnc password file by running: @#
#@ @#
#@ x11vnc -storepasswd password /path/to/passfile @#
#@ or x11vnc -storepasswd /path/to/passfile @#
#@ or x11vnc -storepasswd @#
#@ @#
#@ (the last one will use ~/.vnc/passwd) @#
#@ @#
#@ and then starting x11vnc via: @#
#@ @#
#@ x11vnc -rfbauth /path/to/passfile @#
#@ @#
#@ an existing ~/.vnc/passwd file from another VNC @#
#@ application will work fine too. @#
#@ @#
#@ You can also use the -passwdfile or -passwd options. @#
#@ (note -passwd is unsafe if local users are not trusted) @#
#@ @#
#@ Make sure any -rfbauth and -passwdfile password files @#
#@ cannot be read by untrusted users. @#
#@ @#
#@ Use x11vnc -usepw to automatically use your @#
#@ ~/.vnc/passwd or ~/.vnc/passwdfile password files. @#
#@ (and prompt you to create ~/.vnc/passwd if neither @#
#@ file exists.) Under -usepw, x11vnc will exit if it @#
#@ cannot find a password to use. @#
#@ @#
#@ @#
#@ Even with a password, the subsequent VNC traffic is @#
#@ sent in the clear. Consider tunnelling via ssh(1): @#
#@ @#
#@ http://www.karlrunge.com/x11vnc/#tunnelling @#
#@ @#
#@ Or using the x11vnc SSL options: -ssl and -stunnel @#
#@ @#
#@ Please Read the documention for more info about @#
#@ passwords, security, and encryption. @#
#@ @#
#@ http://www.karlrunge.com/x11vnc/faq.html#faq-passwd @#
#@ @#
#@ To disable this warning use the -nopw option, or put @#
#@ 'nopw' on a line in your ~/.x11vncrc file. @#
#@ @#
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
###############################################################
07/08/2019 13:56:29 x11vnc version: 0.9.13 lastmod: 2011-08-10 pid: 5380
07/08/2019 13:56:29 Using X display :7.0
07/08/2019 13:56:29 rootwin: 0x106 reswin: 0x2600001 dpy: 0x716efc00
07/08/2019 13:56:29
07/08/2019 13:56:29 ------------------ USEFUL INFORMATION ------------------
07/08/2019 13:56:29 X DAMAGE available on display, using it for polling hints.
07/08/2019 13:56:29 To disable this behavior use: '-noxdamage'
07/08/2019 13:56:29
07/08/2019 13:56:29 Most compositing window managers like 'compiz' or 'beryl'
07/08/2019 13:56:29 cause X DAMAGE to fail, and so you may not see any screen
07/08/2019 13:56:29 updates via VNC. Either disable 'compiz' (recommended) or
07/08/2019 13:56:29 supply the x11vnc '-noxdamage' command line option.
07/08/2019 13:56:29
07/08/2019 13:56:29 Wireframing: -wireframe mode is in effect for window moves.
07/08/2019 13:56:29 If this yields undesired behavior (poor response, painting
07/08/2019 13:56:29 errors, etc) it may be disabled:
07/08/2019 13:56:29 - use '-nowf' to disable wireframing completely.
07/08/2019 13:56:29 - use '-nowcr' to disable the Copy Rectangle after the
07/08/2019 13:56:29 moved window is released in the new position.
07/08/2019 13:56:29 Also see the -help entry for tuning parameters.
07/08/2019 13:56:29 You can press 3 Alt_L's (Left "Alt" key) in a row to
07/08/2019 13:56:29 repaint the screen, also see the -fixscreen option for
07/08/2019 13:56:29 periodic repaints.
07/08/2019 13:56:29
07/08/2019 13:56:29 XFIXES available on display, resetting cursor mode
07/08/2019 13:56:29 to: '-cursor most'.
07/08/2019 13:56:29 to disable this behavior use: '-cursor arrow'
07/08/2019 13:56:29 or '-noxfixes'.
07/08/2019 13:56:29 using XFIXES for cursor drawing.
07/08/2019 13:56:29 GrabServer control via XTEST.
07/08/2019 13:56:29
07/08/2019 13:56:29 Scroll Detection: -scrollcopyrect mode is in effect to
07/08/2019 13:56:29 use RECORD extension to try to detect scrolling windows
07/08/2019 13:56:29 (induced by either user keystroke or mouse input).
07/08/2019 13:56:29 If this yields undesired behavior (poor response, painting
07/08/2019 13:56:29 errors, etc) it may be disabled via: '-noscr'
07/08/2019 13:56:29 Also see the -help entry for tuning parameters.
07/08/2019 13:56:29 You can press 3 Alt_L's (Left "Alt" key) in a row to
07/08/2019 13:56:29 repaint the screen, also see the -fixscreen option for
07/08/2019 13:56:29 periodic repaints.
07/08/2019 13:56:29
07/08/2019 13:56:29 XKEYBOARD: number of keysyms per keycode 7 is greater
07/08/2019 13:56:29 than 4 and 195 keysyms are mapped above 4.
07/08/2019 13:56:29 Automatically switching to -xkb mode.
07/08/2019 13:56:29 If this makes the key mapping worse you can
07/08/2019 13:56:29 disable it with the "-noxkb" option.
07/08/2019 13:56:29 Also, remember "-remap DEAD" for accenting characters.
07/08/2019 13:56:29
07/08/2019 13:56:29 X FBPM extension not supported.
07/08/2019 13:56:29 X display is capable of DPMS.
07/08/2019 13:56:29 --------------------------------------------------------
07/08/2019 13:56:29
07/08/2019 13:56:29 Default visual ID: 0x21
07/08/2019 13:56:29 Read initial data from X display into framebuffer.
07/08/2019 13:56:29 initialize_screen: fb_depth/fb_bpp/fb_Bpl 24/32/5120
07/08/2019 13:56:29
07/08/2019 13:56:29 X display :7.0 is 32bpp depth=24 true color
07/08/2019 13:56:29
07/08/2019 13:56:29 Autoprobing TCP port
07/08/2019 13:56:29 Autoprobing selected TCP port 5900
07/08/2019 13:56:29 Autoprobing TCP6 port
07/08/2019 13:56:29 Autoprobing selected TCP6 port 5900
07/08/2019 13:56:29 listen6: bind: Address already in use
07/08/2019 13:56:29 Not listening on IPv6 interface.
07/08/2019 13:56:29
07/08/2019 13:56:29 Xinerama is present and active (e.g. multi-head).
07/08/2019 13:56:29 Xinerama: number of sub-screens: 1
07/08/2019 13:56:29 Xinerama: no blackouts needed (only one sub-screen)
07/08/2019 13:56:29
07/08/2019 13:56:29 fb read rate: 151 MB/sec
07/08/2019 13:56:29 fast read: reset -wait ms to: 10
07/08/2019 13:56:29 fast read: reset -defer ms to: 10
07/08/2019 13:56:29 The X server says there are 10 mouse buttons.
07/08/2019 13:56:29 screen setup finished.
07/08/2019 13:56:29
07/08/2019 13:56:29 WARNING: You are running x11vnc WITHOUT a password. See
07/08/2019 13:56:29 WARNING: the warning message printed above for more info.
07/08/2019 13:56:29

The VNC desktop is: ltsp230:0
PORT=5900

Have you tried the x11vnc '-ncache' VNC client-side pixel caching feature yet?

The scheme stores pixel data offscreen on the VNC viewer side for faster
retrieval. It should work with any VNC viewer. Try it by running:

x11vnc -ncache 10 ...

One can also add -ncache_cr for smooth 'copyrect' window motion.
More info: http://www.karlrunge.com/x11vnc/faq.html#faq-client-caching

07/08/2019 13:56:30 Making connection to client on host 200.189.61.38 port 5500
07/08/2019 13:56:30 other clients:
07/08/2019 13:56:30 Normal socket connection
07/08/2019 13:56:30 Disabled X server key autorepeat.
07/08/2019 13:56:30 to force back on run: 'xset r on' (3 times)
07/08/2019 13:56:30 incr accepted_client=1 for 200.189.61.38:5500 sock=11
07/08/2019 13:56:30 reverse_connect: 200.189.61.38/200.189.61.38 OK
07/08/2019 13:56:30 reverse_connect: turning on auth for 200.189.61.38
07/08/2019 13:56:30 client progressed=0 in 15/10 0.015308 s
07/08/2019 13:56:30 Client Protocol Version 3.8
07/08/2019 13:56:30 Protocol version sent 3.8, using 3.8
07/08/2019 13:56:30 rfbProcessClientSecurityType: executing handler for type 1
07/08/2019 13:56:30 rfbProcessClientSecurityType: returning securityResult for client rfb version >= 3.8
07/08/2019 13:56:30 created xdamage object: 0x260002c
07/08/2019 13:56:30 copy_tiles: allocating first_line at size 41
07/08/2019 13:56:31 client useCopyRect: 200.189.61.38 0
07/08/2019 13:56:31 client_set_net: 200.189.61.38 0.0020
07/08/2019 13:56:31 Pixel format for client 200.189.61.38:
07/08/2019 13:56:31 8 bpp, depth 6
07/08/2019 13:56:31 true colour: max r 3 g 3 b 3, shift r 4 g 2 b 0
07/08/2019 13:56:31 Enabling full-color cursor updates for client 200.189.61.38
07/08/2019 13:56:31 Enabling NewFBSize protocol extension for client 200.189.61.38
07/08/2019 13:56:31 Using ZRLE encoding for client 200.189.61.38
07/08/2019 13:56:36 cursor_noshape_updates_clients: 0
07/08/2019 13:56:37 Pixel format for client 200.189.61.38:
07/08/2019 13:56:37 32 bpp, depth 24, little endian
07/08/2019 13:56:37 true colour: max r 255 g 255 b 255, shift r 16 g 8 b 0
07/08/2019 13:56:37 no translation needed
07/08/2019 13:56:37 Enabling full-color cursor updates for client 200.189.61.38
07/08/2019 13:56:37 Enabling NewFBSize protocol extension for client 200.189.61.38
07/08/2019 13:56:37 Switching from ZRLE to hextile Encoding for client 200.189.61.38
07/08/2019 13:56:37 cursor_noshape_updates_clients: 0
07/08/2019 13:56:42 cursor_noshape_updates_clients: 0
07/08/2019 13:56:42 created selwin: 0x260002d
07/08/2019 13:56:42 called initialize_xfixes()
07/08/2019 13:56:42 cursor_noshape_updates_clients: 0
07/08/2019 13:56:43 Enabling full-color cursor updates for client 200.189.61.38
07/08/2019 13:56:43 Enabling NewFBSize protocol extension for client 200.189.61.38
07/08/2019 13:56:43 Switching from hextile to raw Encoding for client 200.189.61.38
07/08/2019 13:56:45 client 1 network rate 10433.6 KB/sec (10433.6 eff KB/sec)
07/08/2019 13:56:45 client 1 latency: 6.3 ms
07/08/2019 13:56:45 dt1: 0.4599, dt2: 0.0458 dt3: 0.0063 bytes: 5242892
07/08/2019 13:56:45 link_rate: LR_LAN - 6 ms, 10433 KB/s
07/08/2019 13:57:08 cursor_noshape_updates_clients: 0
07/08/2019 13:57:15 rfbProcessClientNormalMessage: read: Connection reset by peer
07/08/2019 13:57:15 client_count: 0
07/08/2019 13:57:15 Restored X server key autorepeat to: 1
07/08/2019 13:57:15 viewer exited.
07/08/2019 13:57:15 deleted 40 tile_row polling images.

=================================================================
user@ltsp-admin:~$ dpkg-query -W x11vnc
x11vnc 0.9.13-6

0 replies

alkisg · 2019-08-08T13:40:50Z

alkisg
Aug 8, 2019
Maintainer

To sum up:

I knew that x11vnc 0.9.13-3 had issues, so I copied the newer x11vnc 0.9.13-6 in the Greek schools PPA.
You have the fixed one though.
The problem happens without epoptes, by just running xvnc4viewer on the server and x11vnc on a client.

So, the problem is in x11vnc; file a bug report against that e.g. in launchpad or elsewhere.
I'm closing this issue as it cannot be fixed from the Epoptes code.

Also note that if you have a firewall, it might affect things, try to temporarily disable it.

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Connection reset by peer (104) #99

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Connection reset by peer (104) #99

PedroCoelhho Jul 30, 2019

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