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Linux Administration
TCP/IP Concepts
Four Layers TCP/IP
Application Layer Protocol
TCP/IP Protocol
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IP Addressing Netmasks
Netmask Structure Usage
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TCP/IP Configuration
Configuration Process
Name Service Resolver
Name Service Methods
Configure network Interface
dmesg Command Output
Listing Configuration Interfaces
IP Address Netmask
Changing IP Address
Configuring Routing Table
What is ARP?
ARP - Quiz
Single Machine Host Names
TCP/IP Conclusion
Network Daemons
Clients Servers
TCP-UDP (L3)
Port Numbers
Known Port Numbers (L5)
Ephemeral Port Numbers
TPC/UDP Port Numbers-Quiz
Listening Server Process
Iterative Concurrent Servers
inetd Super Server
Stand Alone Servers
Remote Procedure Calls
Check Port Mapper Process
Survey Common Services
Telnet Clients Servers
FTP Bulk Data Transfer Service
Berkeley Commands rloginrsh
Domain Name Service
SMTP
NNTP
xprotocol Display
HTTP
Port Number Service Conclusion
Network Monitoring
ping command
Determining listening Servers
Determining Network Connections - Exercise
Using netstat to view active TCP connections (Linux)
Objective:
Use netstat to view active TCP connections.
Exercise Simulation
This exercise uses simulates a UNIX command line and allows you to practice entering commands.
Exercise scoring
This exercise is not scored. When you have completed the exercise, click the
Submit
button to continue with the course.
Instructions
In this exercise, you will use
netstat
to view active TCP connections on your machine. Start the simulation below and work through the situation presented. When you have completed the exercise, click the
Submit
button to review the exercise solution.
Submit