[X2Go-User] line editing not enabled, Connection Failed (Xiki)

[Karl A. Woelfer]

We have a user who is unable to launch X2go, receiving the following errors:


Conection Failed

~/Xiki/bin/.xsh line (...) bind : warning : line editing not enabled


Is this maybe a known conflict between key mappings ? I am not very familiar 
with the Xiki shell.

Are there any workarounds people can offer?


Thanks for your collective expertise,

- Karl
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Re: [X2Go-User] X2Go Client: Kex error : no match for method server host key alog: server [ssh-rsa], client [ssh-ed25519]

[KARL A. WOELFER]

Hello -


Here is a link with some background, which describes two workarounds :

http://permalink.gmane.org/gmane.linux.terminal-server.x2go.user/2368


You would add this to your sshd_config file on the client (Linux) machine, then 
restart ssh

#  KexAlgorithms
curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1


I hope this helps.

- Karl



De : x2go-user-boun...@lists.x2go.org  de la 
part de jmmec2...@yahoo.com 
Envoyé : mardi 14 février 2017 10:30:43
À : x2go-user@lists.x2go.org
Objet : [X2Go-User] X2Go Client: Kex error : no match for method server host 
key alog: server [ssh-rsa], client [ssh-ed25519]

Hey everyone,

Any advice on the problem below?  I hit it consistently with X2Go Client, but 
it does not happen with the Pyhoca client.

Error:

Kex error : no match for method server host key alog: server [ssh-rsa], client 
[ssh-ed25519].

Client computer:

* Windows 8.1 connecting to Linux Mint 17.1 (Ubuntu 14.04.1) running the MATE 
desktop.

* X2Go client software v4.0.5.2.  The problem does not happen with the Pyhoca 
software (I downloaded the latest version).

Server:

Linux Mint 17.1 (Ubuntu 14.04.1) running the MATE desktop.

X2Go Server:
 Server Core:
x2goserver (4.0.1.19)
x2goagent (3.5.0.31)

Server Extensions:
x2goserver-extensions (4.0.1.19)
x2goserver-xsession (4.0.1.19)

X2Go Server Add-ons:
x2gomatebindings (0.0.1.3)

X2Go Server Features:
X2GO_CLIPBOARD_MODES
X2GO_LIST_DESKTOPS
X2GO_MATEBINDINGS
X2GO_MOUNTDIRS
X2GO_MOUNT_UNCPATHS
X2GO_PUBLISHED_APPLICATIONS
X2GO_RUN_EXTENSIONS
X2GO_SERVERSIDE_DESKTOPCOMMANDS
X2GO_SET_KEYBOARD
X2GO_UMOUNTSESSION_ALL
X2GO_UMOUNTSESSION_ONLYPATH
X2GO_XSESSION

Additional Information:

Usually I use X2Go without ssh keys, so just type in my userid & password when 
connecting to the Linux desktop.   This has worked fine.

When the problem above started to happen, I tried generating RSA keys on my 
Windows machine and transferred them to my Linux machine, but this didn't help. 
 I also tried with DSA and also ED22519 keys, but no-go on X2Go.

I installed Pyhoca and authenticate using my userid & password.  I can then 
connect to the suspended session that was originally created with the X2Go 
client.

For now I am using the Pyhoca client, but would also like to get the X2Go 
client working again.

Thanks!

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[X2Go-User] Transport endpoint is not connected? RE: Shared Folders, from Windows to Debian8

[KARL A. WOELFER]

Thank you again Stefan for the more detailed instructions, I am ~closer.

I selected automount for one folder on my WIndows client, "Benchmarking"

>From X2go, on the Debian 8 server side I see :


lrwxrwxrwx1 kw* kw*   25 Jan 25 12:49 media -> /tmp/.x2go-kw*/media

kw*@chdd:~/media$ cd disk
kw*@chdd:~/media/disk$ ls -alrt


ls: cannot access 
_mnt_home_kw*_.x2go_ssh_key.Ja4672__cygdrive_C_Users_KARLWO1_DOCUME1_BENCHM1: 
Transport endpoint is not connected
total 8
d? ? ??   ?? 
_mnt_home_kw*_.x2go_ssh_key.Ja4672__cygdrive_C_Users_KARLWO1_DOCUME1_BENCHM1

(??? above are the Unix file attributes)
This directory entry then goes away.

kw*@chdd:~/media/disk$ ls -alrt /tmp/.x2go-kw*/media/disk
total 8
drwx-- 5 kw* kw* 4096 Jan 25 13:03 ..
drwx-- 2 kw* kw* 4096 Jan 25 13:04 .

Transport endpoint not connected doesn't sound good, but I don't know what  to 
do with this information.

I also don't know the significance of the
_mnt_home_kw*_.x2go_ssh_key.Ja4672__


which precedes the _cygdrive_ name that we are expecting.


Is there something more I should have installed/running (Cygwin for example) on 
my Windows 7 laptop?

X2go client is version 4.0.5.0 (Qt 4.8.6)


Thanks for any and all help with this,
- Karl


De : Stefan Baur <x2go-m...@baur-itcs.de>
Envoyé : mercredi 25 janvier 2017 11:08
À : x2go-user@lists.x2go.org
Objet : Re: [X2Go-User] Shared Folders, from Windows to Debian8

Am 24.01.2017 um 22:49 schrieb KARL A. WOELFER:
> Thanks for the quick reply Stefan,
>
> My Windows 7 is running X2Go Client v 4.0.5.0 (Qt - 4.8.6)
>
>
> I am taking the defaults in Shared Folders (did not check the Automount box,
>
> or the Filename Encoding box.
>
>
> Where will I expect to find the shared C:\Users\Karl ...  Windows folder
> I am sharing on the Linux side?


Well, if you don't check the automount box - nowhere until you mount them?
How you mount them manually depends on what checkboxes you checked under
Options/Settings/General.

1a) If you set X2GoClient to minimize into the system tray, then you
right-click that icon, select the session name, then "Share folder ...".

1b) If, instead, you have the X2GoClient window on your screen even with
an active connection, click on the small folder icon, that's the left of
the three icons "Folder, Pause, Power".

>From there, the steps are the same again for both variants.
2) Click the name of the share in the window that has opened now
3) Click the "share" button.

If you either performed these steps or had the automount box checked,
your mountpoint will be somewhere under ~/media/disk/, with a name
starting with _cygdrive_.


> My Windows laptop has a single-user authentication, whereas we use LDAP
> on Linux, is this a potential problem?

I do not believe so. The mount is performed by FUSE through a tunneled
SSH connection, with the Cygwin SSHD spawning on your client, so it's
your server connecting back to the client, using a temporary SSH key
pair, so there's no exchange of your individual password involved.

I'll try to come up with a HowTo with a few screenshots, but at present,
my only Windows machine that has a US-English GUI is busy spinning its
hourglass over the Windows Update window ... which is not surprising, as
this was the first time since Mid-2014 that I powered it up.

-Stefan

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[X2Go-User] Shared Folders, from Windows to Debian8

[KARL A. WOELFER]

I have had success with Debian to Debian shared folders,

now we have users who would like to share Windows folders using X2go, to a 
Debian 8 system.

X2go client running on a Windows laptop, connecting to Debian 8 server.


I am not at all sure how the file path mapping will work, or where to look on 
the Debian server for this shared

C:\Users\...   folder.


Where would I expect to see the Windows folder that I am sharing ?

Is there a special configuration to set up the Windows-to-Linux filename 
translation?


Thanks for your expertise,

-= Karl


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Re: [X2Go-User] kex error

[KARL A. WOELFER]

Thank you for the quick response Stefan. 
I did pursue Option #2, but only adding a KexAlgorithms section to 
/etc/ssh/sshd_config on the server.

Here is my sshd_config (with KexAlgorithms commented out, to re-enable regular 
ssh connections)

# Package generated configuration file
# See the sshd_config(5) manpage for details

# What ports, IPs and protocols we listen for
Port 22
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes

# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 3600
ServerKeyBits 1024

# Logging
SyslogFacility AUTH
LogLevel INFO

# Authentication:
LoginGraceTime 120
PermitRootLogin without-password
StrictModes yes

#  KexAlgorithms 
#  
curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1

RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile %h/.ssh/authorized_keys

# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
#IgnoreUserKnownHosts yes

# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no

# Change to no to disable tunnelled clear text passwords
#PasswordAuthentication yes

# Kerberos options
#KerberosAuthentication no
#KerberosGetAFSToken no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes

X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
#UseLogin no

#MaxStartups 10:30:60
#Banner /etc/issue.net

# Allow client to pass locale environment variables
AcceptEnv LANG LC_*

Subsystem sftp /usr/lib/openssh/sftp-server

# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes


Thank you again for your time and expertise.
- Karl

De : x2go-user-boun...@lists.x2go.org <x2go-user-boun...@lists.x2go.org> de la 
part de Stefan Baur <x2go-m...@baur-itcs.de>
Envoyé : vendredi 29 janvier 2016 08:50
À : x2go-user@lists.x2go.org
Objet : Re: [X2Go-User] kex error

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Am 29.01.2016 um 17:37 schrieb KARL A. WOELFER:
> Thank you Klaus - I added the workaround, on the Debian 8 x2go
> server workstation, but now all ssh connections are refused.
>
> x2go client says "Connection refused".
>
> Is there something more to do?

I see two options/workarounds listed at
http://permalink.gmane.org/gmane.linux.terminal-server.x2go.user/2368
 - I'm assuming you went for the second option, is that correct?

If so, a copy of your /etc/ssh/sshd_config would greatly aid in
helping you resolve this.

- -Stefan


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[X2Go-User] Debian 8.3 - packages cannot be installed

[KARL A. WOELFER]

Hello all -


   I am not able to install x2go on the latest Debian 8.3 (amd64). Is this a 
known problem?

Any workarounds would be greatly appreciated.

Thanks,

- Karl


Here are the dependency/broken packages messages:

root# apt-get install x2goserver
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
Reading package lists... 0%
The following packages have unmet dependencies:
 x2goserver : Depends: libconfig-simple-perl but it is not installable
  Depends: pwgen but it is not installable
  Depends: libdbd-pg-perl but it is not installable
  Depends: libdbd-sqlite3-perl but it is not installable
  Depends: libfile-which-perl but it is not installable
  Depends: libcapture-tiny-perl but it is not installable
  Recommends: sshfs but it is not installable
  Recommends: x11-xfs-utils but it is not installable
  Recommends: x2goserver-extensions (= 
4.0.1.19-0x2go2+git20160126.1064+jessie.main.1) but it is not going to be 
installed
  Recommends: x2goserver-xsession (= 
4.0.1.19-0x2go2+git20160126.1064+jessie.main.1) but it is not going to be 
installed
E: Unable to correct problems, you have held broken packages.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 x2goserver : Depends: libconfig-simple-perl but it is not installable
  Depends: pwgen but it is not installable
  Depends: libdbd-pg-perl but it is not installable
  Depends: libdbd-sqlite3-perl but it is not installable
  Depends: libfile-which-perl but it is not installable
  Depends: libcapture-tiny-perl but it is not installable
  Recommends: sshfs but it is not installable
  Recommends: x11-xfs-utils but it is not installable
  Recommends: x2goserver-extensions (= 
4.0.1.19-0x2go2+git20160126.1064+jessie.main.1) but it is not going to be 
installed
  Recommends: x2goserver-xsession (= 
4.0.1.19-0x2go2+git20160126.1064+jessie.main.1) but it is not going to be 
installed
E: Unable to correct problems, you have held broken packages.


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[X2Go-User] kex error RE: Debian 8.3 - packages cannot be installed

[KARL A. WOELFER]

> maybe you enabled security.debian.org, but not ftp.debian.org? 
that was indeed what prevented installation, thank you !

Now, is there some new configuration with keys?

My previous X2go clients (V4.0.3.0, running on Debian 7) cannot connect to this 
new server, giving the following.

kex error : did not find one of algos diffie-hellman-group1-sha1 in list 
curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
 for kex algos

Thank you again for your time and expertise.
- Karl

De : x2go-user-boun...@lists.x2go.org <x2go-user-boun...@lists.x2go.org> de la 
part de Stefan Baur <x2go-m...@baur-itcs.de>
Envoyé : jeudi 28 janvier 2016 12:27
À : x2go-user@lists.x2go.org
Objet : Re: [X2Go-User] Debian 8.3 - packages cannot be installed

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Am 28.01.2016 um 20:51 schrieb KARL A. WOELFER:

> I am not able to install x2go on the latest Debian 8.3 (amd64). Is
> this a known problem?

Unable to reproduce. Works just fine here.

You did run apt-get update before running apt-get install x2goserver,
right?

If not, please do so, and try again.

If you did, or if the problem persists, please post the content of
your sources.list.

Your error messages might hint at missing Debian repositories (maybe
you enabled security.debian.org, but not ftp.debian.org? - your
sources.list will tell us more).

Kind Regards,
Stefan Baur

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[X2Go-User] Shared Folders?

[KARL A. WOELFER]

I am not able to get the basic Shared Folder capability to run.

Debian 7 Linux OS on client and server, X2go V 4.0.3.0, and XFCE Desktop.


Is there something fundamental preventing this from working?

Thanks in advance,

- KarlW
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