One of the most ever-present and ancient uses of the Internet and networking has been to provide remote access to networks or network resources.
Posts Tagged: Certification
A local area network (LAN) is a critical component of a modern data network. A LAN is comprised of one or more computers, a communication protocol, a network topology, and cabling or a wireless network to connect the systems.
No system or architecture will ever be completely secure; there will always be a certain level of risk.
Security Models of Control Security models of control are used to determine how security will be implemented, what subjects can access the system, and what objects they will have access to. Simply stated, they are a way to formalize security policy.
Although a robust architecture is a good start, real security requires that you have security mechanisms in place to control processes and applications. Some good security mechanisms are described in the following sections.
Computer System Architecture At the core of every computer system is the CPU and hardware that make it run.
Penetration testing is a series of activities undertaken to identify and exploit security vulnerabilities.
Tunneling, VPN, and IPSec
Single sign-on is an attempt to address a problem that is common for all users and administrators.
Data access controls are established to control how subjects can access data, what they can access with it, and what they can do with it once accessed. Three primary types of access control are discussed in this section. [bs_icon name=”glyphicon glyphicon-chevron-right”] Mandatory Access Control (MAC)
The two law systems that form the basis of legal systems in most countries are:
Kerberos is a network authentication protocol created by the Massachusetts Institute of Technology (MIT) that uses secret-key cryptography. Kerberos has three parts: a client, server, and trusted third party (KDC) to mediate between them.
[bs_icon name=”glyphicon glyphicon-chevron-right”] Types of Attacks Denial of Service (DoS) Smurf Fraggle SYN Flood Teardrop Distributed Denial of Service (DDoS) Ping Sweep Port Scan Salami attack Man-in-the-Middle Session or TCP Hijacking Replay Buffer Overflow Scareware and Ransomeware Password attack Covert channels [bs_icon name=”glyphicon glyphicon-chevron-right”] Web Attacks SQL Injection – An injection of SQL query through input… Read more »
Asymmetric Systems –Uses a pair of keys (private and public) for encryption and decryption
Common networking command-line tools include the following:
An IDS is designed to function as an access-control monitor. It can monitor network or host activity and record which users attempt to access specific network resources.
Get our complete tutorial in PDF Tip #1) Make sure as soon as you get into testing room, write all your IP subnet tables, since you have about 20 mins before the exam start
Follow @ASM_Educational Here are the configuration for Basic Router Configuration When You Open a new router you will see Router> This is called user mode; then you type en=enable to get to enable mode Router# This is called privilege mode
Follow @ASM_Educational Get our complete tutorial in PDF To Find Out If Link is UP Switch#show ip int brief
Follow @ASM_Educational Get our complete tutorial in PDF To Find out if link is up and has Ip address Router#show ip int brief
Follow @ASM_Educational Cisco CCNA-Extended access list In this Lab we will cover the concept of Extended ACL , make sure read another blogs about Standard ACL .
Authentication : The verification of a person’s identity – Helps protect against unauthorized access.
Optical disc drives use removable media to store and retrieve data, typically 5.25”.
No network connectivity?
Hard Disk Drives are nonvolatile (meaning they don’t lose data when power off) devices that store data, generally 3.5”. Types of HDD include: