Basic Networking Part 1 Flashcards
What is a special virtual network interface that allows internal communication on a computer? What is the address?
Loopback Device
It has an address of 127.0..0.1
What command shows and manipulates routing, devices, policy routing, and tunnels? It replaces the now deprecated ifconfig and route commands.
IP
- It incorporates objects to manage the different aspects of networks.
What are some notable objects for the ip command?
-address
-link
-route
-can you ip -a, ip -r or ip -l
-changes made through this command will not persist through reboot
What displays addresses and their properties, add new addresses, and delete old ones?
address
What displays device attributes, add/delete devices and change device states?
link
What displays and manipulates entries in the kernel routing table?
route
What is a utility used to investigate network sockets and dump socket statistics? It is a replacement for the now deprecated netstat command
ss
What is the DNS lookup utility that provides flexibility for interrogating DNS name servers. It is most robust then predecessor nslookup and provides more functionality then the simpler host command.
dig
What command used to send ICMP echo requests
ping
To make IP commands permanent network config files must be updated directly through a command line utility the file locations are
/etc/network for debian
/etc/sysconfig/network for suse
/etc/sysconfig/network-scripts for red hat