Network Security
Cisco Business CBS250-24T-4G Smart Switch
Cisco Business CBS250-24T-4G Smart Switch” refers to a specific model of managed Ethernet switch from Cisco Systems, Inc. The “CBS250” designates it as a part of the Cisco Business line of networking equipment, and the “24T-4G” indicates that it has 24 Gigabit Ethernet ports and 4 SFP uplink ports. “Smart Switch” indicates advanced features such...
Default Gateway Limitations: Impact on Connectivity and Performance
Hosts at the access layer of a hierarchical network take advantage of the alternate default gateways. If a gateway (router interface) fails, the hosts configured with that gateway are cut off from outside networks. A method is needed to provide alternate default gateways in switched networks where two or more routers are connected to the...
What is Malware and Malicious Software? (Updated 2025)
Updated: October 19, 2025—Includes latest threats and network defenses. Malware, or malicious software, is a program or file designed to disturb computer processes and operations or gain unauthorized entry to the computer system, often via network protocols like RDP or SMB, without the user’s knowledge or permission. Malware has become a common term for all...