Dns monitor

Author: r | 2025-04-24

dns monitoring, enhanced DNS logging, DNS auditing, DNS system auditing. Related. DNS logging and monitoring BIND 9 Windows DNS Server Passive DNS monitoring The

DNS Monitoring: Monitor DNS Servers via the DNS protocol - 10-Strike

Windows DNS ServerThis template assesses the status and overall health of services and performance of a Microsoft DNS server.Prerequisites: WMI access to the target server.Credentials: Windows Administrator on the target server.Monitored ComponentsNote: You need to set thresholds for counters according to your environment. It is recommended to monitor counters for some length of time to understand potential value ranges and then set the thresholds accordingly. For more information, see DNS ServerThis component monitor enables DNS clients to resolve DNS names by answering DNS queries and dynamic DNS update requests. If this service is stopped or disabled, DNS updates will not occur and any services that explicitly depend on it will fail to start.Memory: Caching MemoryThis component monitor returns the total amount of system memory in use by the DNS Server service for caching.Monitor this counter to determine whether cache use is optimizing the use of available memory.Memory: Database Node MemoryThis component monitor returns the total amount of system memory in use by the DNS Server service for database nodes.Memory: Nbstat MemoryThis component monitor returns the total amount of system memory in use by the DNS Server service for Nbtstat.Memory: Record Flow MemoryThis component monitor returns the total amount of system memory in use by the DNS Server service for record flow.Dynamic Update: NoOperation/secThis component monitor returns the average number of No-operation/Empty dynamic update requests received by the DNS server per second.Dynamic Update: ReceivedThis component monitor returns the total number of dynamic update requests received by the DNS server.Monitor this counter after enabling dynamic updates to determine whether DNS clients are attempting to update their DNS addresses.Dynamic Update: RejectedThis component monitor returns the total number of dynamic updates rejected by the DNS server.Monitor this counter and compare this value against Dynamic Update: Received to determine how many systems are experiencing problems updating DNS addresses.Dynamic Update: TimeOutsThis component monitor returns the total number of dynamic update time-outs of the DNS server.Dynamic Update: Written to DatabaseThis component monitor returns the total number of dynamic updates written to the database by the DNS server.Monitor this counter and compare this value against Dynamic Update: Received to determine how many systems are successfully updating DNS records.Recursive: Queries/secThis component monitor returns the average number of recursive queries received by the DNS server per second.Recursive: Query Failure/secThis component monitor returns the average number of recursive query failures per second.Recursive: TimeOut/secThis component monitor returns the average number of recursive Query sending time-outs per second.Secure Update: FailureThis component monitor returns the total number of secure updates that failed on the DNS server.Monitor this counter to determine whether or not clients can perform secure dynamic updates. Also, compare this value against Secure Update: Received to determine how many systems fail to perform secure updates in DNS.Secure Update: ReceivedThis component monitor returns the total number of secure update requests received by the DNS server.Monitor this counter and compare this value against Secure Update: Failure to determine how many systems are successfully performing secure updates in DNS.TCP: Message MemoryThis component monitor returns the total amount of TCP message memory used by the DNS server.TCP: Query Received/secThis component monitor returns the average number of TCP queries received by the DNS server per second.TCP: Response Sent/secThis component monitor returns the average number of TCP responses sent by the DNS server per second.Total Query Received/secThis component monitor returns the average number of queries received by the DNS server per second.Monitor this counter to create baselines of server usage in heavily trafficked networks.Total Response Sent/secThis component monitor returns the average number of responses sent by the DNS server per second.Monitor this counter to create baselines of server usage in heavily trafficked networks.UDP: Message MemoryThis component monitor returns the total amount of UDP message memory used by the DNS server.UDP: Query Received/secThis component monitor returns the average number of UDP queries received by the DNS server per second.UDP: Response Sent/secThis component monitor returns the average number of UDP responses sent by the DNS server per second.Zone Transfer: FailureThis component monitor returns the total number of failed zone transfers of the master DNS server.Monitor this counter to troubleshoot name resolution failures.Zone Transfer: SuccessThis component monitor returns the total number of successful zone transfers of the master DNS server.Monitor this counter to troubleshoot name resolution failures.DNS User Experience MonitorThis component monitor tests a DNS server's ability to respond to a record query, compares the query response against a list of IP addresses, and measures the response time. The component monitor passes if the DNS response matches the expected IP addresses.Portions of this document were originally created by and are excerpted from the following sources: Pauli Pesonen, “Microsoft Exchange Server 2003 Installation and the Management,” Copyright 2007-2012 Pauli Pesonen. All rights reserved. Available at

DNS and DNS-TCP service monitoring

This monitor tests the availability of the DNS service on remote IP interfaces.A DNS query is sent to check for a response of either an A or AAAA resource record.The monitor is marked as up if it receives a valid response from the DNS Server.For hostnames that have multiple resource records, it is possible to test if the number of responses are within a given boundary.The monitor can be simulated with the command line tool host:~ % host -v -t a www.google.com 8.8.8.8Trying "www.google.com"Using domain server:Name: 8.8.8.8Address: 8.8.8.8#53Aliases:;; ->>HEADERThis monitor is intended for testing the availability of a DNS service.To monitor the DNS resolution of some of your nodes from a client’s perspective, use the DNSResolutionMonitor.DnsMonitor versus DNSResolutionMonitorThe DnsMonitor is a test against a specific DNS server.Use this service to determine if the monitored node provides DNS resolution of requests sent to it.In Horizon, the DNS server is the node and the DnsMonitor sends a lookup request for a given A record to the DNS server IP address.The service goes down if the DNS server doesn’t have a valid A record in its zone database or has other issues resolving A records.The DNSResolutionMonitor measures the availability and record outages of hostname resolution from a client perspective.Use this service to determine if the monitored node can be resolved by DNS hosted somewhere else in your network.Monitor factsClass Nameorg.opennms.netmgt.poller.monitors.DnsMonitorConfiguration and useTable 1. Optional monitor-specific parameters for the DnsMonitorParameterDescriptionDefaultretryNumber of retries before the service is marked as down.0timeoutTime in milliseconds to wait for the A Record response from the server.5000portUDP port for the DNS server53lookupDNS A Record for lookup testlocalhostfatal-response-codesA comma-separated list of numeric DNS response codes considered fatal if present in the server’s response.Default value is 2 and corresponds to Server Failed.See RFC 2929 for a list of codes and their meanings.2min-answersMinimum number of records in the DNS server response for the given lookup.n/amax-answersMaximum number of records in the DNS server response for the given lookup.n/aExampleThis example shows how to monitor whether the IP interface from a given DNS server resolves a DNS request.This service should be bound to a DNS server which should be able to give a valid DNS response for a request to www.google.com.The service is up if the DNS server gives between one and ten A record responses.Note that you must include the monitor section for each service in your definition.Example configuration monitoring DNS request for a given server for www.google.com To have response time graphs for the name resolution, you must configure RRD graphs for the given ds-names (dns-res-v4, dns-res-v6, dns-res-both, dns-res-either, dns-res-cname-mx) in ${OPENNMS_HOME}/etc/response-graph.properties.. dns monitoring, enhanced DNS logging, DNS auditing, DNS system auditing. Related. DNS logging and monitoring BIND 9 Windows DNS Server Passive DNS monitoring The

Free DNS monitoring - DNS Hawk

DNS is a pivotal service when you host a website online. Though Google Cloud DNS is an established, reliable cloud DNS provider, use Site24x7's monitoring capabilities to know its latency and DNS response counts.Setup and configurationAdding Google Cloud DNS while configuring a new Google Cloud monitor If you have not configured a Google Cloud monitor yet, add one by following the steps below:Log in to your Site24x7 account.Go to Cloud > GCP > Add GCP Monitor or Admin > Cloud Monitoring > Google Cloud Platform(GCP).Provide a unique display name for identification purposes.Upload a service account JSON file to authenticate Site24x7 for performing resource discovery.Select Cloud DNS from the Select the Resources for Monitoring list.Select existing Notification Profiles, User Alerts Groups, Tags, and IT Automation Templates or add new ones. You can also integrate Site24x7's alarms with your preferred third-party service.Click Start GCP Monitoring.Adding Google Cloud DNS to an existing Google Cloud monitor If you already have a Google Cloud monitor configured for the service account, you can add Google Cloud DNS by following the steps below:Log in to your Site24x7 account.Go to Cloud > GCP and select your GCP monitor.Click the hamburger icon next to Service View and select Edit, which brings you to the Edit GCP Monitor page.On the Edit GCP Monitor page, select Cloud DNS from the Select the Resources for Monitoring list and click Save.After successful configuration, go to Cloud > GCP > Cloud DNS. Now you can view the discovered Cloud DNS resources.NoteIt will take approximately This component monitor is disabled and should only be enabled for troubleshooting purposes.IP Requests Per SecondThis monitor returns the IP requests rate, per second. This counter will function only when the DNS resolution is set to "persistent."By default, this component monitor is disabled and should only be enabled for troubleshooting purposes.IP Requests QueuedThis monitor returns the number of IP requests in the queue. This counter will function only when the DNS resolution is set to "persistent."IP Resolved Per SecondThis monitor returns the IP resolved rate, per second. This counter will function only when the DNS resolution is set to "persistent."By default, this component monitor is disabled and should only be enabled for troubleshooting purposes.IP Responses Per SecondThis monitor returns the IP responses rate, per second. This counter will function only when the DNS resolution is set to "persistent."By default, this component monitor is disabled and should only be enabled for troubleshooting purposes.IP Responses QueuedThis monitor returns the number of IP responses in the queue. This counter will function only when the DNS resolution is set to "persistent."IP UnResolved Per SecondThis monitor returns the IP unresolved rate, per second. This counter will function only when the DNS resolution is set to "persistent."Packets Received Per SecondThis monitor returns the packets received rate, per second, before the queue.By default, this component monitor is disabled and should only be enabled for troubleshooting purposes.Packet Dropped: Unmanaged Flow SourceThis monitor returns the number of packets dropped due to a node not being managed by NetFlow. This is caused by the node being disabled or the node not existing in NPM. The returned value should be zero. If the returned value is greater than zero, add these nodes to NPM or disable the exporting of these flows on your router.Packet Dropped: Disabled Flow SourceThis monitor returns the

7 Best DNS Monitoring Tools How to Monitor DNS

The Microsoft exam 70-291 measures an individual’s ability to implement, manage, and maintain a Microsoft Windows Server 2003 Network Infrastructure. Before taking the 70-291 exam, you should practice the following: Configure TCP/IP addressing on a server. Manage DHCP clients and leases, DHCP Relay Agent, DHCP databases, DHCP scope options, reservations and reserved clients. Diagnose and resolve issues related to Automatic Private IP Addressing (APIPA) and incorrect TCP/IP configuration. Diagnose and resolve issues related to DHCP authorization and verify DHCP reservation configuration. Diagnose and resolve issues related to configuration of DHCP server and scope options. Verify that the DHCP Relay Agent is working correctly and verify database integrity. Install and configure the DNS Server service. Configure DNS server options, DNS zone options, and forwarding. Configure DNS zone settings, DNS record settings, and DNS server options.Monitor DNS using tools such as System Monitor, Event Viewer, Replication Monitor, and DNS debug logs. Configure Routing and Remote Access user authentication and remote access authentication protocols. Configure Routing and Remote Access policies to permit or deny access.Configure Internet Authentication Service (IAS) to provide authentication for Routing and Remote Access clients.Manage TCP/IP routing. Manage routing protocols, routing tables, and routing ports. Monitor network traffic by using Network Monitor and System Monitor. Manage packet filters, Routing and Remote Access routing interfaces, manage devices and ports, manage routing protocols, and manage Routing and Remote Access clients. Post navigation

GitHub - robpomeroy/dns-monitor: PowerShell script to monitor DNS

Port Monitoring Ensure the availability of databases and various services operating on different ports of your server. Our monitoring system supports all ports, including HTTPS, FTP, SSH, and more. Email Service Watchdog Safeguard the functionality of your email service with the Email Service Watchdog. Use POP3, IMAP, and SMTP port monitoring to stay informed about any potential issues affecting your critical email services. DNS Port Guard Keep a constant watch on your DNS server with the DNS Port Guard. By monitoring your DNS port, you’ll always stay informed about the status of your crucial DNS connections. Check for Any Issues Flaxxa Monitor keeps an eye on possible port issues. It checks if TCP/IP ports are open and alerts you if any issue. Monitor Multiple Ports Flaxxa Monitor is designed to monitor multiple ports across several devices simultaneously. Add sensors for various ports on different devices to get a comprehensive view of the network’s health and identify potential issues that might affect multiple devices or connections. Get Notified Get quick alerts through different channels or seamlessly integrate with various platforms like Zapier, Slack and more. Custom Reports Generate custom, detailed reports on port activity over specified time periods. Customize the report to focus on the port data that is most relevant for your needs and export in different formats. dns monitoring, enhanced DNS logging, DNS auditing, DNS system auditing. Related. DNS logging and monitoring BIND 9 Windows DNS Server Passive DNS monitoring The

Monitor your DNS Servers with DNS Server Monitor - Site24x7

5 minutes to discover new GCP resources.Polling frequencySite24x7's Google Cloud DNS monitor collects metrics data every minute and the statuses of your Google Cloud DNS resources every 5 minutes.Supported metricsMetric nameDescriptionStatisticUnitDNS server latenciesThe distribution of the latency of DNS requestsAverageMillisecondsDNS response countsThe rate of all DNS responses from the private DNSAverageCountThreshold configurationGlobal configurationIn the Site24x7 web client, go to the Admin section on the left navigation pane.Select Configuration Profiles from the left pane and select Threshold and Availability from the drop-down menu.Click Add Threshold Profile in the top-right corner.For Monitor Type, select Cloud DNS.Now you can set the threshold values for the metrics listed above.Monitor-level configurationIn the Site24x7 web client, go to Cloud > GCP > Cloud DNS.Select a resource you would like to set a threshold for, then click the hamburger icon .Select Edit, which directs you to the Edit Cloud DNS Monitor page.You can set the threshold values for the metrics with the Threshold and Availability option.You can also configure IT Automation at the attribute level.IT AutomationSite24x7 offers a set of exclusive IT Automation tools that automatically resolve performance degradation issues. These tools react to events proactively rather than waiting for manual intervention. The IT Automation tools automate repetitive tasks and automatically remediate threshold breaches. The alarm engine continually evaluates system events for which thresholds are set and executes the mapped automation when there is a breach.How to configure IT Automation for a monitorConfiguration RulesEditing multiple monitors to associate different monitor groups or add a different tag can