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    • IP Address Spoofing

      IP Address Spoofing

      IP address spoofing denotes the action of generating IP packets with fake source IP addresses in order to impersonate other systems or to protect the identity of the sender. Spoofing can also refer to forging or using fake headers on emails or netnews to – again – protect the identity of the sender and to

    • Cisco VPN Error 412

      Cisco VPN Error 412

      The CISCO VPN Client is a popular software application that allows end-users to connect a computer to a VPN (virtual private network). Once connected, the client computer can leverage the resources of the remote network in a secure environment as if connected directly to the local network. Unfortunately, a common error that can arise for

    • How Firewall Protection Works

      How Firewall Protection Works

      Firewall protection works by blocking certain types of traffic between a source and a destination. All network traffic has a source, a destination, and a protocol. This protocol is usually TCP, UDP, or ICMP. If this protocol is TCP or UDP, there is a source port and a destination port. Most often the source port

    • IPsec

      IPsec

      IPSec (IP Security) is a suite of protocols which was designed by Internet Engineering Task Force (IETF) to protect data by signing and encrypting data before it is transmitted over public networks. The IETF Request for Comments (RFCs) 2401-2409 defines the IPSec protocols with regard to security protocols, security associations and key management, and authentication

    • LDAP Security Issues

      LDAP Security Issues

      RFC 2829 – Authentication Methods for LDAP defines the basic threats to an LDAP directory service: Unauthorized access to data via data-fetching operations, Unauthorized access to reusable client authentication information by monitoring others' access, Unauthorized access to data by monitoring others' access, Unauthorized modification of data, Unauthorized modification of configuration, Unauthorized or excessive use of

    • DMZ (DeMilitarized Zone)

      DMZ (DeMilitarized Zone)

      The majority of non-computer professionals think of a DMZ as the strip of land that serves as the buffer between North and South Korea along the 39th parallel north created as part of the Korean Armistice Agreement in 1953. In the computer security field; however, the DMZ (Demilitarized Zone) is either a logical or physical

    • Two Factor Authentication

      Two Factor Authentication

      Two factor authentication is term used to describe any authentication mechanism where more than one thing is required to authentate a user. The two components of two factor authentication are: Something you know Something you have Traditional authentication schemes used username and password pairs to authenticate users. This provides minimal security, because many user passwords

    • RADIUS Server

      RADIUS Server

      RADIUS (Remote Authentication Dial In User Service) is a system procedure that offers centralized entrance, approval, as well as accounting administration for individuals or computers to add and utilize a network service. Individuals often need “Authentication” when they try to fix to a network. People have to face far more problems while connecting their computers

    • Single Sign-On

      Single Sign-On

      Single Sign-On is a concept that allows an end-user to access multiple, related but independent, software applications using a single account. That is, an end-user logs into his/her account only once and then access multiple applications without needing to login again. Single Sign-On is often abbreviated SSO. One the same line, Single Sign-Off is a

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