misuzu

Install NixOS on Oracle Cloud over Ubuntu 18.04 (make sure to use Ubuntu 18.04 or this may not work)

# install useful tools
sudo apt-get update
sudo apt-get install --no-install-recommends -y nano mc git

# prepare /boot
sudo umount /boot/efi
sudo mv /boot /boot.bak

graninas

Building network actors with Node Framework

Article topics:

• What is Node Framework?
• Sample nodes
• Node Framework languages structure
  • Core languages
  • Framework languages
• Node Framework design and architecture

mosquito

Docker compose as a systemd unit

Create file /etc/systemd/system/docker-compose@.service. SystemD calling binaries using an absolute path. In my case is prefixed by /usr/local/bin, you should use paths specific for your environment.

[Unit]
Description=%i service with docker compose
PartOf=docker.service
After=docker.service

miglen

List of Linux networking tools

netstat (ss)

Displays contents of /proc/net files. It works with the Linux Network Subsystem, it will tell you what the status of ports are ie. open, closed, waiting, masquerade connections. It will also display various other things. It has many different options. Netstat (Network Statistic) command display connection info, routing table information etc. To displays routing table information use option as -r.

Sample output:

Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)    
tcp4 0 0 127.0.0.1.62132 127.0.0.1.http ESTABLISHED