day-2-adhoc-commands.md

Day - 2 Adhoc Commands

Getting familiar with few basic commands/adhoc commands to work with Sometimes when the servers are not reponding in the way they are supposed to or there might be few quick commands that you might wanna run instantly like:

• Checking log file
• Rebooting your server
• Quickly remove the access from a particular resource,etc.

1. Start with setting up a system like following:

vagrant init geerlingguy/centos   #initialize Vagrant
code .                            #open the file in the editor,can also nvim <filename>

config.ssh.insert_key = false     #not inserting the private key, local system you know

config.vm.synced_folder = ".","/vagrant",disbled: true #disabling synced folders in case it causes issues

config.vm.provider = virtualbox do |v|
v.memory = 256
v.linked_clone = true

# Application server 1
 config.vm.define "app1" do |app|
 app.vm.hostname = "orc-app1.test"
 app.vm.network :private_network, ip: "192.168.60.4"
 end 

# Application server 2
config.vm.define "app2" do |app| 
app.vm.hostname = "orc-app2.test" 
app.vm.network :private_network, ip: "192.168.60.5"
end

# Database server
config.vm.define "db" do |db| 
db.vm.hostname = "orc-db.test" 
db.vm.network :private_network, ip: "192.168.60.6" 32
end

2. Starting Vagrant to load this structure along with it:

vagrant up

3. To connect to these servers, we'll now create an inventory file

touch inventory
#Application server
[app]
192.168.60.4
192.168.60.5

#Database server
[db]
192.168.60.6

#Super group/all servers
[multi:children]
app
db

#