All IT4Innovations clusters are accessed by the SSH protocol via login nodes at the address **cluster-name.it4i.cz**. The login nodes may be addressed specifically, by prepending the loginX node name to the address.
All IT4Innovations clusters are accessed by the SSH protocol via login nodes at the address **cluster-name.it4i.cz**. The login nodes may be addressed specifically, by prepending the loginX node name to the address.
!!! note "Workgroups Access Limitation"
!!! note "Workgroups Access Limitation"
Projects from the **PRACE** workgroup can only access the **Barbora**and **Salomon**clusters.<br>Projects from the **EUROHPC** workgroup can only access the **Karolina** cluster.
Projects from the **PRACE** workgroup can only access the **Barbora** cluster.<br>Projects from the **EUROHPC** workgroup can only access the **Karolina** cluster.
!!! important "Karolina and Barbora updated security requirements"
!!! important "Karolina and Barbora updated security requirements"
Due to updated security requirements on Karolina and Barbora,
Due to updated security requirements on Karolina and Barbora,
...
@@ -31,16 +31,6 @@ All IT4Innovations clusters are accessed by the SSH protocol via login nodes at
...
@@ -31,16 +31,6 @@ All IT4Innovations clusters are accessed by the SSH protocol via login nodes at
Barbora and Salomon have identical SSH fingerprints on all login nodes.
Barbora has identical SSH fingerprints on all login nodes.
### Private Key Authentication:
### Private Key Authentication:
...
@@ -139,7 +113,7 @@ On **Windows**, use the [PuTTY SSH client][2].
...
@@ -139,7 +113,7 @@ On **Windows**, use the [PuTTY SSH client][2].
After logging in, you will see the command prompt with the name of the cluster and the message of the day.
After logging in, you will see the command prompt with the name of the cluster and the message of the day.
!!! note
!!! note
The environment is **not** shared between login nodes, except for [shared filesystems][3].
The environment is **not** shared between login nodes, except for shared filesystems.
## Data Transfer
## Data Transfer
...
@@ -149,7 +123,6 @@ Data in and out of the system may be transferred by SCP and SFTP protocols.
...
@@ -149,7 +123,6 @@ Data in and out of the system may be transferred by SCP and SFTP protocols.
| -------- | ---- | --------- |
| -------- | ---- | --------- |
| Karolina | 22 | SCP, SFTP |
| Karolina | 22 | SCP, SFTP |
| Barbora | 22 | SCP |
| Barbora | 22 | SCP |
| Salomon | 22 | SCP, SFTP |
Authentication is by [private key][1] only.
Authentication is by [private key][1] only.
...
@@ -187,8 +160,6 @@ $ man sshfs
...
@@ -187,8 +160,6 @@ $ man sshfs
On Windows, use the [WinSCP client][c] to transfer data. The [win-sshfs client][d] provides a way to mount the cluster filesystems directly as an external disc.
On Windows, use the [WinSCP client][c] to transfer data. The [win-sshfs client][d] provides a way to mount the cluster filesystems directly as an external disc.
More information about the shared file systems is available [here][4].
## Connection Restrictions
## Connection Restrictions
Outgoing connections from cluster login nodes to the outside world are restricted to the following ports:
Outgoing connections from cluster login nodes to the outside world are restricted to the following ports:
...
@@ -281,8 +252,6 @@ Now, configure the applications proxy settings to `localhost:6000`. Use port for
...
@@ -281,8 +252,6 @@ Now, configure the applications proxy settings to `localhost:6000`. Use port for
Welcome to the IT4Innovations documentation. The IT4Innovations National Supercomputing Center operates the [Karolina][2],[Barbora][3], and [Salomon][1] supercomputers. The supercomputers are [available][4] to the academic community within the Czech Republic and Europe, and the industrial community worldwide. The purpose of these pages is to provide comprehensive documentation of the hardware, software, and usage of the computers.
Welcome to the IT4Innovations documentation. The IT4Innovations National Supercomputing Center operates the [Karolina][2] and[Barbora][3] supercomputers. The supercomputers are [available][4] to the academic community within the Czech Republic and Europe, and the industrial community worldwide. The purpose of these pages is to provide comprehensive documentation of the hardware, software, and usage of the computers.