Tutorials Index Page 21
How to check that a file or directory exists with Python?
For checking if a file exists with Python 3 you can use the Path python3 Path class from pathlib module. The Path class has the method exists and is\_file. We also give some examples with Python 2 using the os.path.isfile function.
Postgres query performance analysis and optimization
Learn how to analyze and optimize postgres query performance with an example.
How to add or resize swap partition on Ubuntu 16.04
Learn how to add more swap space to Ubuntu 16.04. Also learn how to resize a swap partition.
Scanning vulnerabilities on Ubuntu 16.04
Learn how to use the vuls scanner to scan for vulnerabilities in ubuntu 16.04 and other Linux systems.
How to install GO language
Easy steps to install GO lenguage in a Linux system.
Setup ssh keys for authentication
See all the details on how to setup and use ssh keys for authentication.
How to adjust NVIDIA GPU power usage on linux
If you are using a headless server with NVIDIA GPUs for scientific computing or crypto mining it's probably that you will notice high temperature close to about 80+ C. Also you will notice that fan speed is not at 100% when temperature is high. In this tutorial we explain how to manage to lower the temperature using nvidia commands.
Install nginx from source code
Learn how to setup up a nginx server from the source code.
Compiling gromacs 5.1.4 static for cluster usage
Learn how to compile gromacs 5 from source code with openmpi support statically for cluster usage. The compilation will be done on Ubuntu.