# Frequently Asked Questions

## General
* [I'm a new CSC user. How to get started?](how-to-get-started-at-CSC.md)
* [X11 remote graphics does not work](x11-graphics.md)
* [How to get access to Roihu](how-to-get-roihu-access.md)
* [How to cite CSC in a paper?](how-to-cite-csc.md)
* [Can I still use CSC services if I'm moving abroad?](can-i-use-csc-services-abroad.md)
* [How can I move data between CSC and my local computer?](../../data/moving/index.md)
* [Disk quota exceeded](disk-quota-exceeded.md)
* [I need a Database, where can I deploy it?](database.md)
* [Is there a glossary of the acronyms you keep using?](is-there-a-glossary-of-the-acronyms-you-keep-using.md)
* [How to write good support requests to CSC Service Desk](../support-howto.md)
* [My SSH keys do not work](ssh-keys-not-working.md)
* [I have questions about the Billing Unit renewal (2025)](bu-renewal.md)
* [Connecting to CSC supercomputers using VS Code fails with out-of-memory error](vscode-out-of-memory.md)
* [WARNING: connection is not using a post-quantum key exchange algorithm.](ssh-post-quantum.md)

## Roihu
* [How to get access to Roihu](how-to-get-roihu-access.md)
* [Frequently asked questions about Roihu](roihu.md)

## Batch jobs
* [Why does my batch job fail?](why-does-my-batch-job-fail.md)
* [Why is my job queuing so long?](why-is-my-job-queueing-so-long.md)
* [How to estimate how much memory my job needs?](how-much-memory-my-job-needs.md)
* [When will my batch job run?](when-will-my-job-run.md)
* [How can I change which project is billed for my usage?](how-can-i-change-billing-project.md)
* [Sending email when a job starts/finishes is not working](email_not_working.md )

## Accounts
* [I cannot login. What to do?](i-cannot-login.md)
* [I forgot MyCSC password. How do I get a new one?](new-password.md)
* [How to solve issues with multi-factor authentication (MFA)](issues-with-mfa.md)
* [How to create a CSC user account?](how-to-create-CSC-user-account.md)
* [How can I find information about my projects?](how-to-find-information-about-projects.md)
* [Why is a user called 'system' using our resources](who-unknown-is-using-our-resources.md)
* [How can I change which project is billed for my usage?](how-can-i-change-billing-project.md)
* [I have moved to a new university/organization. Can I keep my present user account and join it to some new project under the new organization?](how-to-change-organization.md)
* [A foreign researcher is joining our research group as a visiting scientist. Can they receive an academic CSC user account?](can-visitors-get-user-accounts.md)

## Computing
* [How is the computing time calculated?](how-is-the-computing-time-calculated.md)
* [Where should I put my data?](where-should-i-put-my-data.md)
* [How can I share my data with other users?](how-can-i-share-my-data-with-others.md)
* [How do I know how much computing resources I have left?](how-do-i-know-how-much-resources-i-have-left.md)
* [Which directory should I use to analyze many small files?](local_scratch_for_data_processing.md)
* [How do the project and scratch file permissions work?](how-do-the-project-file-permissions-work.md)
* [How does LUMI-C differ from Mahti?](../../computing/lumi-vs-mahti.md)
* [Frequently asked questions about Roihu](roihu.md)

## Python on supercomputers
* [How do I install missing Python packages to CSC-provided modules?](../tutorials/python-usage-guide.md#installing-python-packages-to-existing-modules)
* [How do I create my own Python environment?](../tutorials/python-usage-guide.md#creating-your-own-python-environments)
* [How to troubleshoot Python installation problems?](python-package-trouble.md)
* [How to avoid Python pip cache filling up my home directory](python-pip-cache.md)

## Allas

* [How to move data from Roihu to Allas and vice versa?](how-to-move-data-between-roihu-and-allas.md)
* [Can I have a personal project or bucket in Allas?](can-i-have-a-personal-project-or-bucket-in-allas.md)
* Export data
    * [How to download data from Allas with rclone?](../../data/Allas/using_allas/rclone.md#download-objects)
    * [How to download data from Allas with s3cmd?](../../data/Allas/using_allas/s3_client.md#download-objects-and-buckets)
    * [How to download data from Allas with Python using S3?](../../data/Allas/using_allas/python_boto3.md#download-an-object)
    * [How to download data from Allas with swift?](../../data/Allas/using_allas/swift_client.md#download-or-delete-projects)
* [Is it possible to move data in Allas to new project?](is-it-possible-to-move-data-in-allas-to-new-project.md)
* [Is it possible to make data in Allas read-only?](is-it-possible-to-make-data-in-allas-read-only.md)
* [What to do for data in Allas after project ends?](what-to-do-for-data-in-allas-after-project-ends.md)
* [How to make a bucket public?](how-to-make-a-bucket-public.md)

## Pouta

* [Can I access MyCSC home/wrkdir/scratch/project directories from Pouta?](how-to-access-home-wrkdir-projdir-from-cpouta.md)
* [Can I run MPI applications on pouta?](can-i-run-mpi-applications-on-pouta.md)
* [Do you offer SSL certificates?](do-you-offer-ssl-certificates.md)
* Export data and images
    * [How to download an instance snapshot?](../../cloud/pouta/snapshots.md#downloading-an-instance-snapshot)
    * [How to download a volume snapshot?](../../cloud/pouta/snapshots.md#downloading-a-volume-snapshot)
    * [How to download a backup or snapshot image file?](../../cloud/pouta/qemu-vm.md#1-downloading-a-backup-or-snapshot)
* [How can I give access to other people to my VM in Pouta?](how-can-I-give-access-to-other-people-to-my-vm-in-pouta.md)
* [How can I store data on Pouta?](how-to-store-data-in-pouta.md)
* [How fast is the Pouta network?](how-fast-is-the-pouta-network.md)
* [How to create default network and router in a Pouta project](how-to-create-default-network-and-router-in-pouta.md)
* [How to get Allas S3 credentials](how-to-get-Allas-s3-credentials.md)
* [How to mount my Allas S3 bucket to a VM running in cPouta](how-to-mount-os-bucket-for-cpouta.md)
* [How to rescue a Pouta instance](pouta-openstack-rescue-mode.md)
* [How to resize an instance or volume in Pouta?](how-to-resize-in-pouta.md)
* [How to use cPouta for Remote Desktop](how-to-use-cpouta-for-remote-desktop.md)
* [How to use cPouta GPU for rendering](how-to-use-cpouta-gpu-for-rendering.md)
* [Is nested virtualization supported on Pouta?](is-nested-virtualization-supported.md)
* [Is Pouta backed up?](is-pouta-backed-up.md)
* [What does it cost to use Pouta?](what-does-it-cost-to-use-pouta.md)
* [What are volumes? How do I use them?](what-are-volumes-and-how-to-use.md)
* [Why can't I connect to my VM in Pouta?](why-cant-i-connect-to-my-vm-in-pouta.md)
* [Do you provide Windows Virtual Machines?](do-you-provide-windows-vms.md)

## Pukki

* Export data and backup
    * [How to export a PostgreSQL database?](../tutorials/pukki_data_migration.md#step-2-export-your-current-postgresql-database)
    * [How to export a MariaDB database?](../../cloud/dbaas/mariadb-accessing.md#export-your-current-mariadb-database)
    * [How to create a manual backup?](../../cloud/dbaas/backups.md#manual-backups)

## Rahti

* [Rahti FAQ – common tasks and UI usage](../../cloud/rahti/reference/faq.md)
* [Do you offer in Rahti SSL certificates?](rahti-ssl-certificates.md)
* [Does Rahti support UDP connections?](rahti-udp.md)
* Export data and images
    * [How to back up volume data to Allas?](../../cloud/rahti/usage/storage/object-storage.md#backup-to-allas)
    * [How to backup a Postgres DB into Allas](backup-postgres-allas.md)
    * [How to export container images?](../../cloud/rahti/usage/images/integrated-registry.md#pulling-images-from-rahti)
    * [How to share images between projects?](../../cloud/rahti/tutorials/basic/allow-pull-from-other-projects.md)
* [How to add docker hub credentials to a project](docker_hub_login.md)
* [How to automatically scale up and down replicas](addHorizontalAutoscaler.md)
* [How to debug a container?](oc-debug.md)
* [How to open a terminal to a Pod?](terminal-rahti-pod.md)
* [How to package a Kubernetes application with Helm](helm.md)
* [How to run an ad-hoc interactive container](oc-run.md)
* [How to transfer data to Rahti?](transfer_data_rahti.md)
* [Protecting against DDoS Attacks](DDos.md)
* [Why my SSH key does not work in Rahti?](ssh-clone.md)
* [Why Rahti cannot find this docker image?](get-image-format.md)
* [Why this container report permission denied errors?](why-this-container-does-not-work.md)

## Satama

* [Satama Known issues](../../cloud/satama/known_issues.md) 
* [How to manage labels](satama-manage-labels.md)
* [How to add description to repositories](satama-add-description.md)

## Applications

* [How to install my own software on CSC supercomputers?](how-to-install-own-software.md)
* [An application CSC used to provide has disappeared. Where did it go?](deprecated-apps.md)

## Sensitive Data Services for research

### Access and authentication

* [Are CSC Sensitive Data services accessible through the public internet?](sensitive-data-access.md)
* [How I can start using CSC Sensitive Data services?](sensitive-data-access.md#how-can-i-start-using-csc-sensitive-data-services)
* [Does CSC provide Multi-Factor Authentication (MFA)?](sensitive-data-access.md#does-csc-provide-multi-factor-authentication-mfa)

### Collaborative projects

* [How can I share sensitive data with my collaborators?](sensitive-data-collaborative.md)


### General characteristics of the services

* [Are CSC Sensitive Data services suitable for any research professional?](sensitive-data-general.md) 
* [Are CSC Sensitive Data services suitable for any research project?](sensitive-data-general.md#are-csc-sensitive-data-services-suitable-for-any-research-project) 
* [I am not an expert on cloud services and computing, where should I start?](sensitive-data-general.md#i-am-not-an-expert-on-cloud-services-and-computing-where-should-i-start) 
* [What type of data can I process using the services?](sensitive-data-general.md#what-type-of-data-can-i-process-using-the-services)
* [Do you provide a backup service?](sensitive-data-general.md#do-you-provide-a-backup-service) 
* [Are CSC Sensitive Data service free of charge?](sensitive-data-general.md#are-csc-sensitive-data-service-free-of-charge) 
* [Do I need any particular expertise to set up a private workspace with SD Connect and SD Desktop?](sensitive-data-general.md#do-i-need-any-particular-expertise-to-set-up-a-private-workspace-with-sd-connect-and-sd-desktop) 
* [How long does it take to set up a private workspace with SD Connect and SD Desktop?](sensitive-data-general.md#how-long-does-it-take-to-set-up-a-private-workspace-with-sd-connect-and-sd-desktop) 

### Encryption

* [Why do I need to encrypt my data?](sensitive-data-encryption.md)
* [Do sensitive data always need to be encrypted during data transfer e.g. using an  SSH connection?](sensitive-data-encryption.md#do-sensitive-data-always-need-to-be-encrypted-during-upload-or-data-transfer-eg-using-an-ssh-connection)
* [What data formats can be encrypted using SD Connect?](sensitive-data-encryption.md#what-data-formats-can-be-encrypted-using-sd-connect)
* [What is the new extension that was added to my files after upload with SD Connect?](sensitive-data-encryption.md#what-is-the-new-extension-added-to-my-files-after-upload-with-sd-connect)
* [Do CSC Sensitive Data services allow the use of customers' own encryption keys?](sensitive-data-encryption.md#do-csc-sensitive-data-services-allow-the-use-of-customers-encryption-keys)


### Sensitive Data and GDPR

* [What type of data is sensitive?](sensitive-data-legal.md)
* [What is personal data?](sensitive-data-legal.md#what-is-personal-data)
* [What is the difference between sensitive personal data and personal data?](sensitive-data-legal.md#what-is-the-difference-between-sensitive-personal-data-and-personal-data)
* [What is the GDPR?](sensitive-data-legal.md#what-is-the-gdpr)
* [What are the roles of CSC and its service users under GDPR?](sensitive-data-legal.md#what-are-the-roles-of-csc-and-its-service-users-under-gdpr)
* [I am not sure if the data I am working with is sensitive or not. Where can I find support?](sensitive-data-legal.md#i-am-not-sure-if-the-data-i-am-working-with-is-sensitive-or-not-where-can-i-find-support)
* [What type of sensitive data can I process with CSC Sensitive Data Services?](sensitive-data-legal.md#what-type-of-sensitive-data-can-i-process-with-csc-sensitive-data-services)
* [What kind of documentation do I need to provide to use CSC Sensitive Data Services?](sensitive-data-legal.md#what-type-of-documentation-do-i-need-to-provide-to-use-csc-sensitive-data-services)

### SD Connect

* [What are the technical specifications of the service?](sensitive-data-connect.md)
* [How long can I store data in SD Connect for?](sensitive-data-connect.md#how-long-can-i-store-data-in-sd-connect)
* [What is the difference between SD Connect and Allas?](sensitive-data-connect.md#what-is-the-difference-between-sd-connect-and-allas)
* [Can I use SD connect from command line](sensitive-data-connect.md#can-i-use-sd-connect-from-command-line)?

### SD Desktop

* [Can I access/analyse encrypted data stored in SD Connect using SD Desktop?](sensitive-data-desktop.md)
* [Can I edit/annotate data using SD Desktop?](sensitive-data-desktop.md#can-i-editannotate-data-using-sd-desktop)
* [Does CSC provide SD Desktop operating system, software, and security updates?](sensitive-data-desktop.md#does-csc-provide-sd-desktop-operating-system-software-and-security-updates)
* [What are the technical specifications of the service?](sensitive-data-desktop.md#what-are-the-technical-specifications-of-the-service)
* [What type of file can I analyze using SD Desktop?](sensitive-data-desktop.md#what-type-of-file-can-i-analyze-using-sd-desktop)
* [What software is available on SD Desktop?](sensitive-data-desktop.md#what-software-is-available-on-sd-desktop)
* [Who can access my private computing environment in SD Desktop?](sensitive-data-desktop.md#who-can-access-my-private-computing-environment-in-sd-desktop)
* [What is the difference between SD Desktop and ePouta?](sensitive-data-desktop.md#what-is-the-difference-between-sd-desktop-and-epouta)
* [Can I have root or sudo access to a virtual machine running in SD Desktop?](sensitive-data-desktop.md#can-i-have-root-or-sudo-access-to-a-virtual-machine-running-in-sd-desktop)
* [Why do I see the word guacamole in the URL next to sd-desktop.CSC.fi?](sensitive-data-desktop.md#why-do-i-see-the-word-guacamole-in-the-url-next-to-sd-desktopcscfi)

### SD Desktop for secondary use of health and social data (register data)

* [What is SD Desktop for secondary use?](sensitive-data-desktop-audited.md#what-is-the-sd-desktop-for-secondary-use)
* [How does processing secondary use data on SD Desktop differ from standard use of Sensitive Data services?](sensitive-data-desktop-audited.md#how-does-processing-secondary-use-data-on-sd-desktop-differ-from-standard-use-of-sensitive-data-services)
* [How can I access register data with SD Desktop?](sensitive-data-desktop-audited.md#how-can-i-access-register-data-with-sd-desktop)
* [Can I combine my own data with register data on SD Desktop?](sensitive-data-desktop-audited.md#can-i-combine-my-own-data-with-register-data-on-sd-desktop)
* [Is it possible to install software to SD Desktop when processing secondary use data?](sensitive-data-desktop-audited.md#is-it-possible-to-install-software-to-sd-desktop-when-processing-secondary-use-data)
* [How can I export my results from the Desktop?](sensitive-data-desktop-audited.md#how-can-i-export-my-results-from-sd-desktop)
* [What will happen to my data after the secondary use data permit expires?](sensitive-data-desktop-audited.md#what-will-happen-to-my-data-after-the-secondary-use-data-permit-expires)
