One new update on this issue:

Updated x2gosever on one of the servers that was showing the issue to x2goserver-4.0.1.22-2.el7.x86_64. After the update, access through that server started working again.

Any guidance to understand the root cause would still be greatly appreciated.

Thanks,

Ivan G.

From: x2go-user [mailto:x2go-user-bounces@lists.x2go.org] On Behalf Of Ivan Gomez
Sent: Wednesday, March 28, 2018 8:58 AM
To: Mihai Moldovan <ionic@ionic.de>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go Client suddenly failing to connect

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Hi Mihai,

Here is output from rpm -qa | grep -iE '(nx|x2go)'

libNX_X11-3.5.0.32-3.el7.x86_64

libNX_Xcomposite-3.5.0.32-3.el7.x86_64

libNX_Xdamage-3.5.0.32-3.el7.x86_64

libNX_Xdmcp-3.5.0.32-3.el7.x86_64

libNX_Xext-3.5.0.32-3.el7.x86_64

libNX_Xfixes-3.5.0.32-3.el7.x86_64

libNX_Xinerama-3.5.0.32-3.el7.x86_64

libNX_Xpm-3.5.0.32-3.el7.x86_64

libNX_Xrandr-3.5.0.32-3.el7.x86_64

libNX_Xrender-3.5.0.32-3.el7.x86_64

libNX_Xtst-3.5.0.32-3.el7.x86_64

nxagent-3.5.0.32-3.el7.x86_64

nx-libs-3.5.0.32-3.el7.x86_64

x2goagent-3.5.0.32-3.el7.x86_64

x2goserver-4.0.1.20-1.el7.x86_64

One additional detail that we discovered after further troubleshooting:

We have multiple backend servers running X2go. All servers have identical output of rpm -qa | grep -iE '(nx|x2go)', but currently 2 of them present are stuck in this state where applications won’t launch while a third identical sever is not showing issues.

Thanks!

Ivan

-----Original Message-----
From: Mihai Moldovan [mailto:ionic@ionic.de]
Sent: Tuesday, March 27, 2018 3:26 PM
To: Ivan Gomez <igomez@zencos.com>; x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] X2Go Client suddenly failing to connect

* On 03/27/2018 03:09 PM, Ivan Gomez wrote:

> *Environment:*

>

> *Server:*

>

> Red Hat Enterprise Linux Server release 7.3 (Maipo)

>

> x2goagent: 3.5.0.32

>

> x2goserver: 4.0.1.20

>

> x2goserver-extensions: 4.0.1.20

>

> *Client:*

>

> *                *Windows 7 & Windows 10

>

>                

>

>  

>

> I have been using X2Go client in the current environment for quite a

> while now without issues. Seemingly all of sudden today an outage

> happened where X2Go will no longer launch any applications.

rpm -qa | grep -iE '(nx|x2go)'

Mihai