Am 25.06.2015 um 21:12 schrieb Mihai Moldovan:

On 25.06.2015 08:51 PM, Real, Elizabeth (392K) wrote:

...

So we found out that the tcp_wrapper banner on /etc/hosts.allow on the RHEL7.1 X2go server was breaking the x2go client connection. Kept getting the ŒProtocol Mismatch¹ error on the client. Once we modified the /etc/hosts.allow file: FROM sshd: 137.78. 137.79. 137.228. 128.149. 127.0.0.1 : banners /etc/banners

TO sshd: 137.78. 137.79. 137.228. 128.149. 127.0.0.1

The x2go client was able to connect to the server.

This seems to be a bug in X2go.

Oh, very likely... well, not a bug in X2Go, but libssh.

What is the content of your /etc/banners file?

I'll need to look into what the tcp_wrapper banner actually does (i.e., when exactly it's being printed.)

Just a quick ping from my side here,

@Mihai - any update on this? Still a pending issue or already reported upstream/fixed?

@Liz - are you able to use X2Go now, or is the workaround you found not acceptable for your production environment?

Kind Regards, Stefan

-- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243