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Configuring SSH

How to login Using ssh keys

In order to simplify SSH access to remote hosts we recommend CNCA users to adopt the following re...

Updated 1 month ago by Jorge Gomes

Create a ssh key

How to login Using ssh keys

Access to the CNCA computing clusters is performed via SSH and requires the use of SSH keys for a...

Updated 1 month ago by Jorge Gomes

How to apply to use the CNCA infrastructure?

Frequently Asked Questions Applying

Please apply via the FCT Calls for Advanced Computing Projects (CPCA). FCT CPCA calls

Updated 1 month ago by Jorge Gomes

How to contact us?

Frequently Asked Questions Applying

You can contact us via e-mail to the CNCA Computing Services helpdesk address: helpdesk at acnc...

Updated 1 month ago by Jorge Gomes

How much time will it take to gain access?

Frequently Asked Questions Applying

Depends on the size and specificities of the request. If you have an FCT or European research pr...

Updated 1 month ago by Jorge Gomes

Can researchers from foreign organizations apply to use the CNCA infrastructure?

Frequently Asked Questions Applying

Researchers from foreign organizations can be eligible to use CNCA when they cooperate with Port...

Updated 1 month ago by Jorge Gomes

Who can apply to use the CNCA infrastructure?

Frequently Asked Questions Applying

CNCA is open to researchers from Portuguese scientific and academic organizations in all areas of...

Updated 1 month ago by Jorge Gomes

Information

User Support Information - RNCA / FCT c... CPCA

How to use allocated resources User Access User access must be done using an ssh client, for that...

Updated 1 month ago by Jorge Gomes

Acceptable Use Policy

Getting Started

This Acceptable Use Policy (AUP) for the cloud and distributed computing services has been update...

Updated 1 month ago by Jorge Gomes

Login and network access

Getting Started

Access to the CNCA cloud and distributed computing infrastructure is available only to registered...

Updated 1 month ago by Jorge Gomes

INDICO - events management tool

Openstack users manual OpenStack Services

INDICO is a open-source tool for events management. It was developed at CERN (European Organizati...

Updated 1 month ago by Jorge Gomes

Cloud Tutorials

Cloud Service

Openstack Tutorials An Openstack Horizon/Dashboard tutorial can be found in these slides The Open...

Updated 1 month ago by Jorge Gomes

Time synchronization

Cloud Service

Recommendations for NTP configuration For stratus.a.acnca.pt use the CNCA provided NTP servers: s...

Updated 1 month ago by Jorge Gomes

Stratus technical overview

Architecture and technical information

The CNCA Stratus cloud computing service is a IaaS cloud infrastructure based on Openstack. OpenS...

Updated 1 month ago by Jorge Gomes

Platforms

Virtual Machine Specs and Information

CNCA enables long term and short term platforms to enable data sharing and data processing in the...

Updated 1 month ago by Jorge Gomes

User Portal

User Support

For specific user portal issues please use the following contact: portal (at) acnca.pt

Updated 1 month ago by Jorge Gomes

Helpdesk

User Support

To contact the CNCA user support please send email to: helpdesk (at) acnca.pt For other instituti...

Updated 1 month ago by Jorge Gomes

Virtual machine specs

Virtual Machine Specs and Information

The list of Virtual Machine flavors available to general users in the Stratus cloud computing ser...

Updated 1 month ago by Jorge Gomes

2025

Scientific Publications

International articles with referee Storti, B. C., Sinval, J., Munro, Y. L., Diaz, F. J. M., & S...

Updated 1 month ago by Jorge Gomes

2026

Scientific Publications

International articles with referee Almeida, Gabriel, et al. "Universality, robustness, and limi...

Updated 1 month ago by João Pina