Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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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.
PostgreSQL Configuration Tuning
Learn how to tune PostgreSQL for optimal performance. Configure shared_buffers, work_mem, effective_cache_size and other key parameters.
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.
How to use nginx as a revese proxy with docker containers
Here we show how to improve python multi threading performance using grumpy to transpile python to go lenguage.