ICMP | Internet Control Message Protocol | Comptia Security Plus

ICMP, Internet Control Message Protocol, Comptia Security Plus

The Internet Control Message Protocol (ICMP) is a network layer protocol used by network devices to diagnose network communication issues. ICMP is mainly used to determine whether or not data is reaching its intended destination in a timely manner.

Network monitoring solutions depend on ping. Ping is a central part of most network monitoring solutions on the market today. In network monitoring systems, the ping utility allows the Central Management Station (CMS) to quickly determine whether a monitored host or device is reachable. Other sensors configured for devices such as disk I/O, network bandwidth, etc. are often dependent on the ping sensor. If the ping sensor fails, the other sensors will likely be paused or taken offline to prevent alert storms.

Since ping has low overhead for both the CMS and network it is the preferred method of determining availability of monitored devices. Turning off ping typically involves re-architecting your network monitoring solution, increases administrative effort and complicates monitoring.

Network Security
Some network administrators disable ICMP and/or SNMP on network devices to improve security. Supporters of this position believe that it makes their network more secure by obscuring certain elements.




ICMP | Internet Control Message Protocol | Comptia Security Plus

ICMP, Internet Control Message Protocol, Comptia Security Plus

IPsecP | Protocols | Well-known Ports | Comptia Security Plus

IPsecP - Protocols - Well-known Ports, Comptia Security Plus

Security Information and Event Management (SIEM)

Security Information and Event Management (SIEM)

HOW TO ENHANCE CYBERSECURITY AS YOUR OFFICE REOPENS

How to enhance office cyber security, protect your office from ransomware

Protecting a Small Business Against Ransomware

Protecting a Small Business Against Ransomware, Basic Ransomware Defences

Security+: Cloud and Virtualization Concepts

The CompTIA Security+ certification has become a worldwide standard for recognizing competence in IT security and cloud and virtualization

Firewall and Switch Protection Mechanisms | Comptia Security Plus

Firewall and Switch Protection Mechanisms, CAM Overflow Attack

Ransomware Threats | Email Threat Simulation

Over 90% Of Ransomware Threats Are Initiated By Email

Comptia Security Plus | Access Control List

Comptia Security Plus | Access Control List

Network Security | Network Segmentation and Separation with VLANs

Network Security | Network Segmentation and Separation with VLANs