Home Page

Firewalls

Email & Spam

Security Terminology

Security Topics

VPN & Cryptography

Wireless

 

Protocol Terminology

FTP,SCP and SFTP

Ports Protocols and IP Addresses

Radius and TACACS

SSH and Telnet

SMTP POP3 and IMAP

 

 

Firewalls

Which Network Firewall

Which Home Firewall

Network Firewall Buyers Guide

 

Security Products Guide

Which Anti-Virus Software?

Which Firewall?

Which Spam Filter?

Which Internet Security Suite?

 

What is Guide

What is a Firewall?

What is a Virus?

What is Spam?

 

Essential Security Guides

Securing Windows XP Guide

Securing Windows Vista Guide

A Guide to Wireless Security

 

Other

Top 8 Internet Security Tips

Why both, Firewall and Anti Virus?

Free or purchased security - Which one?

 

 

 

Telnet and SSH

 

Telnet and FTP protocols are still used but a little less frequent today due to being insecure protocols. Basically you can see everything in clear text, as well as other security vulnerabilities.

The Telnet protocol which runs on port 23 is used for remote connectivity utility such as when remotely logging into a Linux box to run commands. The SSH protocol which runs on port 22 is the secure alternative for Telnet and is used by all security vendors to remotely connect to firewalls and other security solutions. It is also used by many in general to access their Linux OS due to corporate security policies or because of the fact that it is secure.