December 21, 2024

Things That I Discovered

1. Caddy Load-Balancing

• Turned to Caddy's Load Balancing capabilities to make sure a service stays up even if the server A goes down, and for that we can just declare a Reverse Proxy such that the server B is used when the server A goes down.

• Example:

  :80 {
      reverse_proxy {
          to 100.64.0.1:12345 100.64.0.2:12345
          health_uri /health
          health_interval 5s
          health_timeout 2s
          health_status 200
          health_passes 5
          fail_duration 30s
          lb_policy first
      }
  }

• Reference(s):

  • Caddy Server Documentation

  • Linux Training Academy

  • Greg Hilston Blog

2. Show Wi-Fi Networks in Ubuntu Server

• In order to show available WiFi Networks in Ubuntu Server, we can use iwlistcommand.

• Example:

  sudo iwlist <INTERFACE_NAME> scan | grep ESSID

• Reference(s):

  • LinuxBabe
  • Linux Uprising