[Fiware-lab-help] CentOS-7-x64 Image on Lannion2 does not allow ssh logins

Carlos Falquez falquez at nuberisim.de
Wed Jul 8 16:01:43 CEST 2015


Dear all,

The Image "CentOS-7-x64" on Region "Lannion2" does NOT allow ssh login with the configured identity keypair.

Currently our instance

Name:  nuberisim-compute-node
ID:  17c940ac-abb6-4fff-bf9e-55f7b8489f2c
Status:  ACTIVE
node-int-net-01: 192.168.1.206
Image Name:  CentOS-7-x64
region:  Lannion2

does not allow logins over ssh (Permission denied) - and does not even present a password prompt -
despite correct identity keypair configuration.

Any help with this problem would be appreciated.

Kind regards,

Carlos Falquez


On Monday 29 June 2015 10:09:48 Dr.-Ing. Iris Pantle wrote:
> Dear all,
> 
> thank you!
> 
> Best regards,
> 
> Iris
> 
> Am Montag, 29. Juni 2015, 09:04:00 schrieben Sie:
> >  	FW External User commented on  FLUA-1208
> > 
> > FIWARE LAB Upgrade Account /  FLUA-1208
> > Assign Resources and Status for: NUBERISIM
> > Hi,
> > I created you a flavor (m1.large.NUBERISIM) with 4 vCPUs.
> > About your problem of token for object storage, please send a mail to
> > fiware-lab-help at lists.fi-ware.org BR,
> > Anthony
> > Issue Type:	 AccountUpgradeByNode
> > Assignee:	Lannion Node Helpdesk
> > Attachments:	 authenticated_step3.json,
> 
> Nuberisim_Logo_CMYK_300_ppi.png,
> 
> > Nuberisim_Logo_RGB_150_ppi.png Components:	 FI-PPP
> > Created:	 22/Jun/15 12:50 PM
> > Reporter:	FW External User
> > Status:	 Done
> > Nuberisim = Numerical High Performance Simulations for fluid flow and
> 
> noise
> 
> > prediction as Cloud-based web application. Project
> > Fluid flow is noisy, annoying and health critical for people continuously
> > exposed to it. Examples are aircraft, wind turbines, automobiles,
> > climatization, household devices like hovers or kitchen hoods. For the
> > latter low noise devices are a competitive advantage. For others like
> 
> wind
> 
> > turbines restrictive noise regulations are in place, particularly when
> > operated close to settlements. Low noise design principles need
> 
> integration
> 
> > in the design and construction phase of devices as early as possible, in
> > order to reduce costs, failures, and improve energetic impact. This can
> > only be reached by numerical simulations. So far the computational
> 
> demand
> 
> > of fluid flow simulations coupled directly with acoustical predictions
> > inhibited establishing appropriate and efficient workflows. Particularly,
> > engineering houses (simulation service suppliers) or SMEs require
> 
> access to
> 
> > appropriate flow and noise prediction software plus high performance
> > computing architecture. In contrast to available solutions the Nuberisim
> > platform is solving both issues: providing specialized software for
> 
> coupled
> 
> > fluid flow and noise prediction as a web application with intuitive access
> > to a high performance computing infrastructure (provided by computing
> > centers or Cloud). Urgent Need of FIWARE Lab and Generic Enablers
> > This project is both in need and ideally suited for running on the FIWARE
> > Cloud. The start-up Falquez, Pantle and Pritz GbR (founded in 2014) has
> > developed the Nuberisim platform concept. Nuberisim consists of the
> > software for fluid flow and noise simulation, largely developed at the
> > Karlsruhe Institute of Technology (KIT), and the platform environment.
> > After successful deployment of the prototype (see URL of proof of
> 
> concept
> 
> > and "Success stories" below in this box), three elements are required,
> > where the FIWARE Cloud and the FIWARE Enablers will leverage
> 
> significantly
> 
> > development time and time-to-market. The latter is expected to be
> 
> performed
> 
> > within the next weeks instead of the next half year. The three elements
> > are: Use 3 different Generic Enablers (see box "Additional Comments");
> > Use the FIWARE Lab Cloud for free test accounts for our professional
> 
> pilot
> 
> > customers; Expand the service drastically at a second stage after
> 
> testing
> 
> > through professional customers. The Enablers are needed to integrate
> > efficient 3D visualisation of the simulation data (grids, results), to
> > efficiently render them for the customers and stream them to their
> > browsers. Next to testing the Enablers, the FIWARE Lab Cloud is urgently
> > needed at this moment for offering free test accounts for professional
> > first time customers. Only recently a successful "mass test" with
> 
> students
> 
> > of the basic Nuberisim functions (login, configuration of simulations,
> > starting parallelized simulations through 30 people at the same time,
> > receiving convergence data streamed plots) has been performed and
> 
> first
> 
> > pilot customers are currently testing Nuberisim. However, since the
> > prototype is running on AWS instances which need to be kept online for
> > testing, this causes substantial costs per month. The limited resources
> 
> of
> 
> > the start-up limit heavy customer testing and therefore delay the
> > time-to-market significantly. Technology
> > The software is a Navier-Stokes solver for compressible Computational
> 
> Fluid
> 
> > Dynamics coupled with fieldwise (acoustic perturbation equations) and
> > integral (Ffowcs Williams and Hawkings) acoustic prediction. The
> 
> platform
> 
> > environment consists of web servers, data bases, cluster scheduling
> 
> and
> 
> > management along with dynamically allocated virtual computing
> 
> instances.
> 
> > Flow induced noise and its prediction is in comparison to other
> 
> simulation
> 
> > methods the most challenging in terms of demand of computing
> 
> resources
> 
> > (mainly CPU power). This demand is met by using external High
> 
> Performance
> 
> > Computing (HPC) infrastructure as Cloud service. The Nuberisim
> 
> prototype is
> 
> > running on the HPC instances of the Amazon Web Services (AWS) and
> 
> can
> 
> > easily be transferred to FIWARE. IP
> > The platform was developed by the founders and the IP fully belongs to
> 
> them.
> 
> > Part of the software was developed freely by the founders and the IP
> 
> fully
> 
> > belongs to them. Other parts of the software are developed by the
> 
> founders
> 
> > and third parties within their employment at the KIT. Here the KIT holds
> > the legal user rights. A license agreement between KIT and the founders
> 
> has
> 
> > been signed in 2015. Success Stories
> > EXIST founders' fellowship (EXIST-Gründerstipendium) 05/2013-05/2014;
> 
> April
> 
> > 2014 presentation of first prototype on HannoverMesse as co-presenter
> 
> of
> 
> > the German Ministry of Economics and Energy (BMWi); February 2015
> 
> signing
> 
> > the licence contract with the KIT for the software and becoming official
> > KIT Spin-Off; March 2015 presentation of second, strongly improved
> > prototype at HPSC conference; May 2015 "mass test" with 30 students
> 
> at
> 
> > State University of Cooperative Education Baden-Württemberg in
> 
> Karlsruhe
> 
> > (Duale Hochschule BW); Ongoing/scheduled tests of the Nuberisim
> 
> platform by
> 
> > professionals (June/July 2015 ++) from KSB/Bosch/Harman-Becker.
> 
> Reporter:
> > Iris Pantle
> > E-mail: pantle at nuberisim.de
> > 
> > This email was generated by the FIWARE JIRA following a request for
> 
> account
> 
> > upgrade to community status. If you need information on the status of
> 
> your
> 
> > process, you can reply to this email.
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