Configuring DNS servers

Maintaining an accurate and up-to-date DNS setup is critical for the proper execution of EventLog Analyzer capabilities. A well-managed DNS system ensures that all devices can communicate effectively, preventing disruptions such as:

1. RPC Server Unavailability
2. Device addition Issues
3. Failed logons

Follow these best practices for Proper DNS Configuration

• Verify that each device in a Domain has a unique hostname.
• Establish forward and reverse DNS lookup zones.
• Make sure that DNS servers are properly configured and accessible for all the devices.
• Consider enabling Dynamic DNS (DDNS) to automatically update DNS records as the IP addresses change.
• Regularly monitor DNS servers and zones for any anomalies.
• Perform routine maintenance tasks such as zone cleanup, DNS database optimization, DNS Cache Clean up and DNS server software updates.

Appendix:

Forward DNS lookup and reverse DNS lookup are two types of queries used in the Domain Name System (DNS) to resolve domain names to IP addresses and vice versa.

1. DNS Forward Lookup - Translation of Domain Names to IP Addresses:

   Translates human-readable domain names (e.g., www.domain.org ) into machine-readable IP addresses (e.g., 192.0.2.1) that computers use to locate resources on the internet.

2. DNS Reverse Lookup - Translation of IP Addresses to Domain Names:

   Translates IP addresses(e.g., 192.0.2.1) back into domain names(e.g., www.domain.org ), allowing users to identify the domain associated with a particular IP address.

DNS Cache(Stored Locally) - Temporary Storage of DNS Records:

DNS cache temporarily stores recently resolved domain name-to-IP address mappings, reducing the time required to resolve frequently accessed domain names by caching the results of previous lookups and DNS caches are stored locally, to clear DNS caches we can use the command ipconfig /flushdns