Zymitry

Network Devices for Security+ Certification

“Learn about essential network devices for network security and their significance in the Security+ Certification exam. Explore firewalls, routers, load balancers, proxy servers, IDPS, content filtering appliances, VPN concentrators, and other network technologies that play a crucial role in maintaining a secure network environment. Enhance your knowledge of security configurations, deployment scenarios, and best practices to protect against various threats. Prepare effectively for the Security+ Certification with insights into network devices and technologies.”

IDS / IDPS Detection Methods: Anomaly, Signature, and Stateful Protocol Analysis

“Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IDPS) are crucial for network security. Explore anomaly detection, signature detection, and stateful protocol analysis methods, their strengths, limitations, real-world applications, and best practices for effective deployment and management. Enhance your network security posture and mitigate risks.”

Domain Name System (DNS) Security Threats

DNS Security Threats The Domain Name System (DNS) is a service used on both the Internet and private networks to translate Internet Protocol (IP) addresses to Fully Qualified Domain Names. Example, this service allows someone to type a FQDN like www.zymitry.com to reach the Zymitry web site instead of having to type in the domains IP address. Regarding… Read More »

Zigbee IEEE 802.15.4 Internet of Things (IoT) Protocol

Zigbee IEEE 802.15.4 The improvement of wireless protocols is a major factor driving the development of newer Internet of Things (IoT) devices and systems. The Zigbee suite of communication protocols is used to create personal area networks with small, low-power digital radios, such as home automation, medical device data collection, and other low-power low-bandwidth needs. The Zigbee physical layer… Read More »

Fast Ethernet Specification – IEEE 802.3u

Fast Ethernet Specification – IEEE 802.3u 802.3, commonly known as Ethernet for Local Arena Network (LAN) operation, is a specification for speeds ranging from 1Mb/s to 100 Gb’s / sec using common Media Access Control specifications. IEEE 802.3u Fast Ethernet in the form of 100Base-T is one of the most widely used forms of Ethernet. It is often… Read More »

Compression of Network Data and Performance Issues

Network-Compression. Today’s networks will always have data limitations. Data sets continue to grow on pace with increasing bandwidth availability making network-compression an important service in improving network performance. The network-compression used is actually a combination of compression and caching. It has been found that TCP rate control combined with network-compression provides the best value in terms of optimizing… Read More »

Transmission Control Protocol (TCP) Hybla

Transmission Control Protocol (TCP) Hybla. A key component of TCP is a congestion-control mechanism. TCP does this by having each sender limit the rate based on perceived network congestion. If a TCP sender perceives that there is little congestion on the path between itself and the destination, it increases its send rate. If the sender perceives that… Read More »

Security Policy Example – IRT Access & Authorization Policy

Policy Example SunSpot Credit Union Computer Incident Response Team—Access & Authorization Policy 1.0 Policy Statement This policy applies to SunSpot Credit Union employees, temporary workers, contractors, and consultants who use or access SunSpot Credit Union information systems and computers. 2.0 Purpose/Objectives Definitions for this policy are as follows: SunSpot Credit Union: (SCU). Incident Response Team:… Read More »

Security Policy Example – Remote Access

Compliance and Security: Navigating Legal and Regulatory Requirements

SunSpot Health Care Provider Remote Access Policy for Remote Workers & Medical Clinics 1.0 Policy Statement It is SunSpot Health Care Provider (SHCP) policy to protect Information Resources based on risk against accidental or unauthorized disclosure, modification, or destruction, and assure the Confidentiality, Integrity, and Availability (CIA) of clinic and patient data. Apply appropriate physical and… Read More »

Security Policy Template for Hand-Held Devices

Hand-Held Device use has become common place in today’s business environment to include company owned assets, and personal “Bring Your Own Device” (BYOD)’s. Security of Hand Held Devices normally spans over many of the other standard domains making it practical to treat them as a separate domain.. The SANS Reading Room article; Security Policy for the use of… Read More »