The moment you say "proceed to check out," you hit on the button "Proceed to check out" you are transferred from HTTP to HTTPs because at that point you have to log on to the server. A protocol with which we send and receive files on the network. It provides users with graphical interface to connect another computer over a network connection. This is one of the port numbers that has 4 digits in the syllabus so it's very important we know this, 3389 for RDP. SNMP, Simple Network Management Protocol, this is a protocol with which we gather configuration parameters from devices on the network. This is the protocol that allows emails to move from one server to another server. The Domain Name Service allows us to do name resolution across the internet. Your browser would actually make a query to the DNS and the DNS has tables of addresses for the IP addresses to all these servers. Now the browser knows how to get you to the website. If you were to move from one device to another device, your emails are no longer available on the server. I could even use the word Certification as a search factor while the emails are still on the server. The IP network services use, we use this for error reporting.
This is a protocol with which we do connections across the network to other computers on the network. We then look at some other protocols like SNMP and SMTP. The default configuration of POP3 is that it will retrieve the emails from the server and delete them on the server. Say I received the message from a friend 3 weeks ago about certification.
In its simplest form, where neither endpoint is multihomed, this results in the same four-tuple socket pair used with TCP.
However, when either of the endpoints of an association are multihomed, then multiple four-tuple sets (with different IP addresses but the same port numbers) may identify the same association.
Clients normally do not care about the value of the ephemeral port; the client just needs to be certain that the ephemeral port is unique on the client host.
The transport protocol code guarantees this uniqueness.
The (IANA) maintains a list of port number assignments.
Assignments were once published as RFCs; RFC 1700 [Reynolds and Postel 1994] is the last in this series.
[toggle_content title="Transcript"] I will now be talking about the common protocols and their port numbers. These are some protocols where we add SSH to improve the security. However if you go to some websites to do financial transactions, you need to secure your transmissions, your credentials, credit card numbers and passwords. We have different types of ping, ping floods that could be used to overwhelm your servers.
We discuss the functions of the protocols and we learn their associated port numbers. This is file transfer protocol and as the name implies this is the protocol with which we transfer files on the network. Let's take a look at some other protocols like HTTP. This is the protocol with which we navigate the internet. Some organizations actually could enable their firewalls to block a ping request as a preventive measure not putting themselves at risk of a flooding attack from a ping.