devops-learning-go

Run SSH scenario

First generate private and public keys

go run ssh/keygen/main.go

It should output a mykey.pem and mykey.pub, copy into another set for server and name it server.pem and server.pub

Using server and client code

1. Start up ssh server on original terminal

go run ssh/server/main.go

2. Open a second terminal tab and execute client

go run ssh/client/main.go

3. Observe output from both terminal tabs

Using only server code and separate terminal invocation

1. Start up ssh server on original terminal

go run ssh/server/main.go

2. Open a second terminal tab and execute

ssh localhost -p 2022 -i mykey.pem 'whoami'

3. Observe output from both terminal tabs

Run DNS resolver scenario

1. On original terminal

go run dns/main.go

2. Open up second terminal tab and perform some dns commands

$> dig @127.0.0.1 google.com
$> dig @127.0.0.1 nba.com   

3. Observe output in original terminal

Testing DNS resolver with go test

go test -v ./dns/pkg