What is 802.1X?

What Is 802.1x

The IEEE 802.1X standard operates at layer two of the OSI reference model and allows access control to cable-based or wireless local area networks (LANs and WLANs). It provides a secure authentication procedure and uses protocols and standards such as the Extensible Authentication Protocol (EAP) and RADIUS. In the WLAN environment, access control with this … Read more

What is a VLAN?

What is a VLAN

As computer networks continue to expand in size and complexity, new technologies are being developed to help manage and optimize data communication. One such technology is a VLAN, or Virtual Local Area Network. VLANs allow devices to be grouped together into logical networks, even if they are physically located on different parts of a larger … Read more

What Is Overlay Network?

Overlay networks have become increasingly popular in recent years, as they offer a unique way of connecting computers and devices across multiple networks. An overlay network is a virtual network that is built on top of an existing network, creating a layer of abstraction between the physical network and the applications that use it. This … Read more

What is a DMZ? Understanding Concept of Demilitarized Zone

What is a DMZ

What is a DMZ? The Demilitarized Zone (DMZ) is an independent network that acts as a buffer zone between an external network and the internal network. The buffer network contains, for example, web servers or mail servers whose communication is monitored by firewalls. As businesses and organizations become more dependent on technology and online presence, … Read more

What is LLDP (Link Layer Discovery Protocol)?

What is LLDP (Link Layer Discovery Protocol)

What is LLDP (Link Layer Discovery Protocol)? The Link Layer Discovery Protocol works on layer two of the OSI reference model and is specified in the IEEE 802.1AB standard. Neighboring devices in a network can use the protocol to exchange information. The devices store the information they receive in their Management Information Base. Typical applications … Read more

What Is a Proxy & How Does It Work?

What is a proxy

A proxy is a software instance or a server that acts as an intermediary in a network. It receives requests and forwards them by proxy. Proxies can be used, for example, to obfuscate communication between local end devices and web servers, to speed it up, or to secure it. Have you ever been restricted from … Read more

What is a Network Domain?

What is a network domain

A network domain is an administratively delimited network area that can be used to logically map the organizational structures of a company. Security policies, user rights, and user roles are managed centrally via a domain controller. A user logs on to a domain via the domain controller. Domains have unique names and are structured hierarchically. … Read more

How Does RADIUS Work?

How Does RADIUS Work

How does RADIUS work? RADIUS stands for Remote Authentication Dial-In User Service and describes a service that authenticates and authorizes users in a dial-in network. RADIUS can also be used for the accounting of services. In companies, RADIUS is often used for user logon in WLAN networks. Have you ever wondered how you connect to … Read more

What is an Information Security Management System (ISMS)?

Information Security Management System

An Information Security Management System (ISMS) defines rules and methods to ensure information security in a company or organization. The ISMS is process-oriented and follows a top-down approach starting from the company management. Protecting sensitive information has become paramount for organizations and individuals alike, and the increasing sophistication of cyber threats and the growing volume … Read more

What is Cross-Site Scripting (XSS)?

what is cross-site scripting

What is cross-site scripting? Cross-site scripting (XSS) is one of the most commonly used attack methods on the Internet. The goal of cross-site scripting is to obtain confidential data, hijack applications, or cause other damage. XSS embeds the attack code in a supposedly secure context. In today’s digital age, web applications are an integral part … Read more

What is a Security Operations Center (SOC)?

What is a Security Operations Center

The so-called Security Operations Center, abbreviated SOC, sees itself as the center for all security-relevant services in the IT environment of organizations or companies. It protects the IT infrastructure and data from internal and external threats. With the rapidly evolving landscape of cybersecurity, organizations face many threats and attacks on their digital assets. To combat … Read more

What is an Intrusion Prevention System (IPS)?

What is an Intrusion Prevention System IPS

An intrusion prevention system, abbreviated IPS, is able to detect attacks on networks or computer systems and to take automatic defensive measures. It provides additional protection compared to conventional firewall systems. An Intrusion Prevention System (IPS) clearly differs from an Intrusion Detection System (IDS) in some functions. Cybersecurity is of utmost importance to protect our … Read more

What Is An Intrusion Detection System (IDS)?

What Is An Intrusion Detection System IDS

An intrusion detection system, abbreviated IDS, is able to detect and inform about attacks directed at computers, servers, or networks. Often the Intrusion Detection System complements the usual functions of a firewall. Network security plays a critical role in safeguarding organizations from cyber threats. One essential component of network security is an Intrusion Detection System … Read more

What Is A Firewall in Computer Network & PC?

What is a Firewall

A firewall is a system that is capable of analyzing data traffic. It protects IT systems from attacks or unauthorized access. The firewall can be a dedicated hardware or software component. Literally translated, firewall means “firewall”. The term refers to an IT system that can analyze, forward, or block data traffic. This enables the firewall … Read more

What is WPA2 (Wi-Fi Protected Access 2)?

What is WPA2

WPA2 (Wi-Fi Protected Access 2) has been the successor to WPA since 2004. Among the most important changes compared to WPA is the use of the AES encryption method. WPA2 eliminates the vulnerabilities of WPA that were discovered and is still considered very secure when a strong password is used, despite known attacks. In our … Read more

What is BSI Standard 200-1?

What is BSI Standard 200-1?

BSI Standard 200-1, along with Standards 200-2 and 200-3, is an elementary component of the BSI’s IT-Grundschutz methodology. It defines the general requirements for information security management systems (ISMS – information security management systems) and is compatible with ISO standard 27001. The aim of the BSI standard is to make the business processes of companies … Read more

What is Stateful Packet Inspection (SPI)?

What is Stateful Packet Inspection SPI

Stateful Packet Inspection is a dynamic packet filtering technique for firewalls that, in contrast to static filtering techniques, includes the state of a data connection in the inspection of packets. It detects active TCP sessions and can allow or block data packets based on the session state. SPI provides higher security for firewall inspection and … Read more

What Is a Wireless Intrusion Prevention System (WIPS)?

What Is a Wireless Intrusion Prevention System WIPS

A wireless intrusion prevention system can detect and defend against attacks and unauthorized access to a WLAN. It provides additional protection for the wireless network environment. The WIPS consists of several components and uses sensors to monitor the wireless network. What is WIPS (Wireless Intrusion Prevention System)? The acronym WIPS stands for Wireless Intrusion Prevention … Read more

What is Endpoint Security: Protecting Your Digital Perimeter

What is a endpoint security

Endpoint Security protects the various endpoints in a network from various threats. Technical and organizational measures prevent unauthorized access to devices or the execution of malicious software. Endpoint protection ensures that the end devices achieve the desired level of security. Endpoint security refers to the measures and practices implemented to secure the various endpoints in … Read more

What is SASE (Secure Access Service Edge)?

What is Secure Access Service Edge SASE

Secure Access Service Edge (SASE) is an architectural concept that provides WAN services and security functions as a combined cloud-based solution. The security functions operate at the network edge. They replace centralized security concepts, for example, via virtual private networks. Identity- and context-based access mechanisms are in place for users, applications, and devices. What is … Read more