Eric Njimegni's IT Blog

  Access Control Lists (ACLs) are a set of rules that can control incoming or outgoing traffic in a network. They are typically used to selectively admit or reject inbound traffic, thereby preventing access to a network or specific resources on a network.   ACLs can be implemented in routers and switches, and they work by examining the source and destination IP addresses, protocols, and network traffic ports. Based on the rules defined in the ACL, the router or switch can allow or deny traffic.   ACLs are a valuable tool for controlling traffic in a network, but there are better ways to do so. For example, firewalls can provide more granular control over network traffic by examining the contents of packets and applying more complex rules. Additionally, intrusion detection and prevention systems can detect and block malicious traffic. In summary, ACLs are a valuable tool for controlling network traffic, but there are better ways. The best...

  In computer networking,  static and dynamic routing are two   routing protocols. Static routing is a manual process where the network administrator manually enters the routes in the routing table. It does not use complex routing algorithms and provides high security. However, it is difficult to configure and is implemented in small networks. On the other hand, dynamic routing is an automated process that changes the routing table according to the change in topology. It uses complex routing algorithms and does not provide high security like static routing. However, it is easy to configure and is implemented in large networks. Dynamic routing requires additional resources and more bandwidth than static routing. When the network change occurs, it sends the message to the router to ensure that changes, and then the routes are recalculated to send updated routing information.

  A Virtual Local Area Network (VLAN) is a logical network that groups devices based on their functionality, location, or security requirements. Here are some advantages of VLANs: Advantages: Improved network performance: VLANs can reduce congestion by segmenting the network into smaller broadcast domains. This reduces the amount of traffic that needs to be processed by each device, leading to faster network speeds. Enhanced network security: VLANs can isolate sensitive data and restrict access to it. This helps prevent unauthorized access to confidential information and reduces the risk of data breaches. Simplified network management: VLANs can simplify network management by allowing administrators to manage groups of devices as a single entity. This reduces the complexity of network management and makes it easier to troubleshoot network issues. Flexibility: VLANs can be easily reconfigured to meet changi...