Documents & Guides for Students
On this page, students of our courses (B.Sc. Biology – Bioinformatics (Bio V), M.Sc. Computational Biology – C1: Population Genetics and Molecular Evolution, and C3: Statistical Genetics in Research and Practice) will find a collection of guides, documents and troubleshooting tips for working with our LESBOS server and related tools.
The documents are organised by topic. If you have questions or run into problems, please contact the course instructors or the michael.nothnagel [at] uni-koeln [dot] de (StatGen team).
LESBOS Server – Access & Setup
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Access to LESBOS server
General information about the LESBOS server: purpose, prerequisites, who gets access and how registration works.
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SSH Access to LESBOS – WinSCP / Cyberduck Quick Guide for Students
Step-by-step guide to setting up SSH access on Windows (WinSCP) and macOS (Cyberduck), including hostname, port and key file.
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TROUBLESHOOTING: When students cannot log in to the LESBOS server
Common causes and solutions for login problems – from »Permission denied« to expired accounts and incorrect key files.
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WinSCP: Private key not displayed (convert SSH key to PuTTY
.ppk)Why WinSCP does not list your OpenSSH key, and how to convert it to
.ppkformat using PuTTYgen.
- All guides are written as HTML pages and can be read directly in the browser.
- To work on the LESBOS server in production you need an active university account (Uni-Kennung / RRZK account) and a current course enrolment.
- For technical issues not covered in the guides, please contact us directly.