Re: [opensuse-factory] ssh -X failing in 20180116

On Thursday 2018-01-18 16:16, Petr Cerny wrote:

H.Merijn Brand wrote:

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On Thu, 18 Jan 2018 15:40:00 +0100, Petr Cerny wrote:

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not using X11 forwarding? What should I tell a newby when he/she asks *WHY* it should not be used?

I'll bite, not for war's, but to get as much info as possible on why I should or should not use X11 versus VNC

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1) security - application can only grab inputs it gets from its X server. If you run it in a Xvnc, it only gets input that it is sent by the VNC client.

A legit reason, but somewhat void if on an internal network behind big firewalls

The key word is "somewhat". The question is not whether there are attackers on your network, but how many.

But SSH's security mechanisms win over VNC. And running VNC through ssh -L gets into the realm of "more security means less usability". Hrrm - probably pick RDP over VNC?

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2) speed - the X protocol is usually much more verbose when compared to VNC, since it carries requests to draw things, while VNC only transports bitmaps (compressed). Try running Firefox via ssh -X and through VNC. I've also seen things that just didn't work via SSH-forwarded X11.

With 100+ synchronous networks on both end, who will notice?

Out of curiosity: have you actually tried?

I had the fun of experiencing SunRays 15 years ago. Worked like X11 - which means it only worked well so long as the line was neither congested nor latent. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org