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Technical notes

5 posts

Some useful technical notes related to my work will be kept in this Tech section.

How to install IRAF and PyRAF on a M1/M2 (Apple Silicon) Mac?

Jan 20, 2024
5 minutes read

This tutorial is for installing IRAF Community Distribution and PyRAF on a M1/M2 (Apple Silicon) Mac. The following steps are tested on Mac OS Sonoma 14.......

Local port forwarding examples

Sep 14, 2022
2 minutes read

For more information, please see this SSH tutorial. 1. Forward agnkiaa:9000 to localhost:8080 The webpage running on agnkiaa:9000 cannot be accessed from remote clients.......

Create and manage SSH keys for authentication to a Linux server

Aug 2, 2022
One minute read

Say the hostname of the server is agnkiaa (e.g. set in your local /etc/hosts file), with its ip address being......

How to install and initiate IRAF in Ubuntu/Mac OS [deprecated]

Oct 14, 2019
6 minutes read

Note: This article is deprecated. Please refer to the new version for the latest tutorial. 0. Introduction to IRAF IRAF (Image Reduction and Analysis Facility) is a general purpose software system for the reduction and analysis of astronomical data.......

Extend disk volume with Ubuntu LVM

May 21, 2019
4 minutes read

Be careful with your disk when reading this note and similar ones. Think twice before you take action. Introduction to LVM LVM (Logical Volume Manager) is a powerful tool for logical volume management on Linux systems.......