Difference between revisions of "Introduction to Linux in HPC/SSH Connections"

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Introduction to Linux in HPC/SSH Connections
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| REAL-NAME    = HPC.NRW
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| image  =  Hpc.nrw_small.png ‎
 
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| Feldnamehead1 = Other HPC Courses
 
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| Feldname2 = GPU      | Daten3 = Introduction to GPU Programming
 
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| Feldname3 = GPROF    | Daten4 = [https://hpc-wiki.info/hpc/GPROF_Tutorial Gprof Tutorial]
 
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| Feldnamehead2 = Introduction to Linux in HPC
 
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| Feldname5 = 1. | Daten6 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Historical_Background Historical Background]
 
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| Feldname6 = 2. | Daten7 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/The_Command_Line The Command Line]
 
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| Feldname7 = 3. | Daten8 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Directory_structure Directory structure]
 
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| Feldname8 = 4. | Daten9 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Files Files]
 
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| Feldname9 = 5. | Daten10 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Text_display_search Text display search]
 
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| Feldname10 = 6. | Daten11 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Processes_and_permissions Processes and permissions]
 
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| Feldname11 = 7. | Daten12 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/The_vim_text_editor The vim text editor]
 
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| Feldname12 = 8. | Daten13 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Shell_scripting_environment_variables Shell scripting environment variables]
 
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| Feldname13 = 9. | Daten14 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/System_configuration_files System configuration files]
 
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| Feldname14 = 10. | Daten15 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Various_tips Various tips]
 
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| Feldname15= 11. | Daten16 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Beyond_the_cluster Beyond the cluster]
 
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| Feldname16= 12. | Daten17 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/Linux_in_HPC Linux in HPC]
 
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| Feldname17= 13. | Daten18 = [https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/SSH_Login SSH Login]
 
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=== Video === <!--T:5-->
 
=== Video === <!--T:5-->

Revision as of 13:15, 26 October 2020



HPC.NRW
HPC.NRW
Other HPC Courses
1. Gprof Tutorial
2. OpenMP in Small Bites
Introduction to Linux in HPC
1. Background and History
2. The Command Line
3. Directory structure
4. Files
5. Text display and search
6. Users and permissions
7. Processes
8. The vim text editor
9. Shell scripting
10. Environment variables
11. System configuration
12. SSH Connections
13. SSH: Graphics and File Transfer
14. Various tips


Video


Quiz

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1. Does it cause a security problem to share an SSH public key with your friends?

Yes
No


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Which authentication for SSH login is more secure?

password authentication
public key authentication


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When generating the SSH public/private key pair, is it secure to use empty passphrase?

Yes
No


Info:  Verify the fingerprint of remote host, before the first login.
User the SSH public key authentication for login.
Never use an empty passphrase for the SSH keys.
Use strong passphrase to generate the SSH keys.
Keep your private SSH key as top secret.
Create, configure and use different SSH keys for different remote hosts.
If no X11 application is required, disable X11 forwarding. Otherwise, only enable the untrusted X11 forwarding.


Warning:  lots of tips are given, no warning.

Note: Exercises in Terminal: no exercises in this section

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