Linux Security for Beginners - Configuring Linux Services and Runlevels
Whilst the Firewall can be configured to block the ports used by the the various Linux services, if they are not required it is also good policy the disable any unused services on the Linux system. Not only does this provide an additional level of Linux security but it also avoids having unnecessary ...
TCP/IP Email
Your Email Program Does
Your email program uses different TCP/IP protocols:
* It sends your emails using SMTP
* It can download your emails from an email server using POP
* It can connect to an email server using IMAP
TCP/IP Protocols
A Family of Protocols
TCP/IP is a large collection of different communication protocols based upon the two original protocols TCP and IP.
TCP/IP Addressing
IP Addresses
Each computer must have an IP address before it can connect to the Internet.
Each IP packet must have an address before it can be sent to another computer.
This is an IP address: 192.68.20.50
This might be the same IP address: www.w3schools. ...
Introduction to TCP/IP
What is TCP/IP?
TCP/IP is the communication protocol for communication between computers on the Internet.
TCP/IP stands for Transmission Control Protocol / Internet Protocol.
TCP/IP defines how electronic devices (like computers) should be connected to the Inte ...
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