TCP Port 443
SSH
TCP Port 22
DNS
TCP/UDP Port 53
HTTP
TCP Port 80
RDP
TCP Port 3389
SNMP
UDP Port 161
LDAP
,TCP/UDP Port 389
Network Layer
Layer 3
Data Link Layer
Layer 2
Presentation Layer
Layer 6
Transport Layer
Layer 4
Router
Device that connects different networks together
Switch
Device that forwards traffic within the same network
,Spanning Tree Protocol (STP)
Used to prevent loops in a switched network
ipconfig
Command that displays IP configuration on Windows
ping
Command that tests connectivity to another IP
tracert / traceroute
Command that traces the path packets take
nslookup
Command that queries DNS servers
netstat
Command that shows current network connections
, DHCP
Dynamic Host Configuration Protocol
DNS
Domain Name System
Private IP range for Class A
10.0.0.0 to 10.255.255.255
Private IP range for Class B
172.16.0.0 to 172.31.255.255
Private IP range for Class C
192.168.0.0 to 192.168.255.255
SCP
Protocol used to securely copy files over SSH