Hi Loris, yes, I am using "-X"; it's aliased and I forgot to wrote "\ssh -X" in the tests.
I forgot also that: all servers are running CentOs 7.5; I've updated from 17.11.9-2 (not tested, only checked the installation procedure) Thanks! Luca Il giorno lun 17 set 2018 alle ore 07:51 Loris Bennett < loris.benn...@fu-berlin.de> ha scritto: > Luca Cenzato <luca.cenz...@gmail.com> writes: > > > Hi, > > > > I'm trying to deploy slurm scheduler but I'm facing some issue with x11; > I got this error : > > srun: error: Cannot forward to local display. Can only use X11 > forwarding with network displays. > > when I try to launch a job from a slurm login to a slurm node. > > > > Here some tests: > > > > from notebook [NB] -> slurm login server [SLS] -> slurm node server > [SNS] > > > > ### > > ssh > > ### > > > > [NB] : ssh -> [SLS] : xeyes > > Shouldn't you be using -X when connecting from NB to SLS? > > > OK > > > > [NB] : ssh -> [SLS] : \ssh -X [SNS] : xeyes > > OK > > > > [NB] : ssh -> [SLS] : srun --x11 --pty bash -> [SNS] : xeyes > > X11 connection rejected because of wrong authentication. > > Error: Can't open display: localhost:59.0 > > > > #### > > x2go > > #### > > > > [NB] : x2go -> [SLS] : xeyes > > OK > > > > [NB] : x2go -> [SLS] : srun --x11 --pty bash > > srun: error: Cannot forward to local display. Can only use X11 > forwarding with network displays. > > > > [NB] : x2go -> [SLS] : srun --pty bash -> [SNS] : xeyes > > Error: Can't open display: :50 > > > > [NB] : x2go -> [SLS] : srun --pty bash -> [SNS] : export > DISPLAY=[SLS]:50 ; xeyes > > OK > > > > {same behaviour as X2go for VNC.} > > > > Any hints please ? > > > > Thanks, > > Luca > > > -- > Dr. Loris Bennett (Mr.) > ZEDAT, Freie Universität Berlin Email loris.benn...@fu-berlin.de > >