Networking (continued)

Question 1

what does the file /etc/network/interfaces contain?

Answer 1

it contains network interface configuration info for ifup and ifdown commands. this is also where you configure how your system is connected to the network.

Question 2

what command can I use to configure network service to services at boot?

Answer 2

command : systemctl

Question 3

what is the syntax for the command : systemctl?

Answer 3

systemctl [options…] COMMMAND[UNIT….]

Question 4

How would I configure a http service to start at boot?

Answer 4

systemctl enable apache2

or more generally

systemctl enable ‘service’

Question 5

how would I configure the network card or specific connection to start at boot ?

Answer 5

1. I use the command: nmcli
2. $ nmcli connection modify [connection name eg eth01] connection.autoconnect yes

Question 6

how would i show what connections are active?

Answer 6

nmcli connection show –active

also great for getting the connection name

Question 7

what is one way to look up the current kernel IP routing table?

Answer 7

netstat -r