RADIUS (Remote Authentication Dial In User Service), defined in RFC 2865, is a protocol for remote user authentication and accounting. RADIUS enables centralized management of authentication data, such as usernames and passwords. When a user attempts to login to a RADIUS client, such as a router, the router send the authentication request to the RADIUS …
Consumers commonly mistake an intrusion detection system (IDS)with a computer firewall. Although both applications have a similar goal to protect end-users from nefarious hackers and computer malware, an IDS differs from a firewall in that it can be either a device or software program created to monitor an individual computer, computing device, or network for …
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 …
Understanding Network Attacks A network attack can be defined as any method, process, or means used to maliciously attempt to compromise network security. There are a number of reasons that an individual(s) would want to attack corporate networks. The individuals performing network attacks are commonly referred to as network attackers, hackers, or crackers. A few …
LDAP (Lightweight Directory Access Protocol) is a protocol for communications between LDAP servers and LDAP clients. LDAP servers store "directories" which are access by LDAP clients. LDAP is called lightweight because it is a smaller and easier protocol which was derived from the X.500 DAP (Directory Access Protocol) defined in the OSI network protocol stack. …
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 …
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 …
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 …
In most cases, disabling the firewall on a Netgear router is a really bad idea. In fact, it is such a bad idea that Netgear does not even make a button in their GUI that does this. Nevertheless, users can effectively disable a Netgear router firewall just by adding a rule or two to the …