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    • Denial of Service (DoS) Attacks

      Denial of Service (DoS) Attacks

      A Denial of Service (DoS) attack is one that attempts to prevent the victim from being able to use all or part of his/her network connection. A denial of service attack may target a user to prevent him/her from making outgoing connections on the network. It may also target an entire organization to either prevent

    • Access Control

      Access Control

      Access control is the execution of limitations and restrictions on whoever tries to occupy a certain protected property, thereby keeping people as safe as possible. As modern society moves further into the cyber age, these access control systems become almost completely computer controlled. This article will further explain what access control is, how it works,

    • Free Firewall Software

      Free Firewall Software

      Free firewalls have become very common and represent an excellent alternative to commercial firewall packages. Most of these firewalls run under some form of Linux, FreeBSD, or OpenBSD. Many of these free firewalls are front-ends for the lower-level firewall packages which ship with these operating systems, such as pf (Packet Filter), ipf (IPFilter), ipfw (IPFirewall),

    • 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

    • 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

    • 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

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