Security+ - Anything Over IP (Page 4)

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A collection of 84 posts

Configuring SPAN on a Cisco Switch

Configuring SPAN on a Cisco Switch

SPAN (Switch Port Analyzer) is a feature available on Cisco switches that allows you to mirror traffic from one or more source ports to a destination port for monitoring purposes. This is particularly useful for network troubleshooting, security monitoring, and traffic analysis. Understanding SPAN SPAN works by copying packets from

Configuring Syslog on Cisco Routers

Configuring Syslog on Cisco Routers

Syslog is a protocol used by network devices and other systems to send log messages to a central logging server. Cisco routers and switches can be configured to send their log messages to a syslog server, which helps network administrators monitor and troubleshoot their networks more effectively. What is Syslog?

Password Recovery Procedure for Cisco Routers

Password Recovery Procedure for Cisco Routers

One of the problems that you may find yourself in is that you are not able to access a router due to not knowing the password. This can happen in various scenarios, for example if a network engineer has left the company and has not divulged the password details, or

Cisco Router Login Lockdown

Cisco Router Login Lockdown

This post covers various security features built into Cisco IOS that help prevent unauthorized access to your Cisco router or switch. While these features won't stop a determined attacker with physical access to your device, they will provide some basic protection against network-based attacks and casual snooping. Login

'Login local' on a Cisco Router

'Login local' on a Cisco Router

When configuring access to a Cisco router, you have several options for authentication. One common method is using login local, which authenticates users against locally configured usernames and passwords stored on the router itself. What is Login Local? The login local command tells the router to authenticate users using the

Configuring SSH (Secure Shell) on a Cisco device

Configuring SSH (Secure Shell) on a Cisco device

SSH (Secure Shell) provides a secure way to connect to and manage network devices remotely. Unlike Telnet, which sends data in plain text, SSH encrypts all communication between the client and server, making it the preferred method for remote administration. This guide will show you how to configure SSH on

Setting the enable password and secret on a Cisco device

Setting the enable password and secret on a Cisco device

The enable password and enable secret are used to restrict access to privileged EXEC mode (also known as enable mode) on Cisco devices. Let's explore the differences between them and how to configure each. The difference between enable password and enable secret Both the enable password and enable

Hashing, What is it and how does it work?

Hashing, What is it and how does it work?

Hashing, often referred to as a hash function, is a fundamental concept in computer science and cryptography. It's a mathematical algorithm that takes an input (or 'message') of any size and produces a fixed-size string of characters, which appears random. This output is called a hash

How encryption works

How encryption works

Encryption is the process of converting readable information into a scrambled code that hides the information's true meaning. The purpose of encryption is to protect digital data confidentiality as it's stored on computer systems and transmitted using the internet or other computer networks. The outdated data