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Showing posts from August, 2020

IDS/IPS (Intrusion Detection System) & (Intrusion Prevention System)

IDS (Intrusion Detection System)As its name suggest that it's designed to detect malicious or suspicious activity in the network by scanning data packets and monitoring the network traffic. It detects packet forwarding if its a good or bad packet where bad packet determines of malicious threats or any kind of risk.It generates logs to identify suspicious activity.It can not prevent malicious threats or attacks from inside the environment or outside, the aim behind the design the IDS to give warnings of that suspicious or malicious activity or threats to the system administrators or security/network admin.It continuously monitors and analyzes the incident, violations, and threats which may be breaking the network security.Credit: pngio.com
IPS (Intrusion Prevention System)Its is designed to prevent the malicious or suspicious threat and activities which are detected by IPS in the network.Its design to block suspicious and malicious activities and threats before it develops and succ…

NSX-T Manager Node Recovery

In the NSX-T environment, there were scenarios where it's required to bring down the manager node instances off from the cluster due to several abnormal reasons.Scenarios like if there were some issues during the upgrade of the manager node instance or having any abnormal circumstances where is node unable to recover from NSX-T Manager UI. To recover/replace the node from the manager cluster its require to attempt with the manual process. Let's discuss the manual path to recover/Replace a Manager Node in the Cluster.1) Login to NSX-T manager using CLI2) Use command 'get cluster status'This command will list all the NSX-T manager/controllers nodes into the cluster.Find the UUID of the existing node and Cluster to identify the node which requires recover/replace. 3) Now that we have identifying the manager node ID from the above command, its time to detect the node from the cluster. Using detach node command "node id" will remove the node from the cluster.This pr…