Trust anchors were mentioned earlier. A validating DNS server must include at least one trust anchor. Trust anchors also apply only to the zone that they are assigned. If the DNS server hosts several zones, then multiple trust anchors are used. This is a powerful tool that attackers can use to reconnoiter your network. See you then! She has written numerous books and articles for web and print publications and has been awarded the Microsoft MVP designation for fourteen years in a row.
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Introduction With the upcoming insurgence of IPv6, accessing computers through DNS names will be more important than ever. The Problem: Non-secure Nature of the DNS Database Given the increasing reliance on DNS that is sure to result, we are going to need a way to make sure that the entries in the DNS database are always accurate and reliable - and one of the most effective ways for us to ensure this is to make sure that our DNS databases are secure.
Post Views: 3, Improve this answer. Jessen Mathias R. You can also edit the registry value ' SocketPoolExcludedPortRanges ' manually located in the same registry key as mentioned above. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
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Related 0. Caution Don't edit the registry directly unless you have no alternative. Note This article contains references to the term slave, a term that Microsoft no longer uses. Note After you add a record, make sure that you use the correct data type and data format. Submit and view feedback for This product This page. View all page feedback. In this article. If this parameter is omitted, the local server is used. Specify a setting and, as an option, a value. Parameter values use this syntax: parameter [ value ].
Specifies the maximum number of host records that a DNS server can send in response to a query. The value can be zero 0 , or it can be in the range of 5 through 28 records. The default value is zero 0. Changes the format of the zone transfer so that it can achieve maximum compression and efficiency.
Determines the source from which the DNS server gets its configuration information. Accepts the values: 0 - Clears the source of configuration information. Determines whether the DNS scavenging feature is enabled by default on newly created zones.
Accepts the values: 0 - Disables scavenging. Sets a period of time in which no refreshes are accepted for dynamically updated records. Sets a period of time that is allowed for dynamic updates to DNS records. Enables or disables the automatic creation of reverse lookup zones.
Specifies whether the DNS server automatically creates name server NS resource records for zones that it hosts. Enables or disables the server to probe other servers to determine if they support EDNS.
Enables or disables support for the GlobalNames zone. Enables or disables support for the global query block list that blocks name resolution for names in the list. Determines how the DNS server handles a query for a delegated subzone. Replaces the current global query block list with a list of the names that you specify.
Determines how the DNS server responds when queries that it forwards receive no response. Determines the order in which host records are returned when the DNS server has multiple host records for the same name. Specifies the path of the Dns. Specifies which packets are logged in the debug log file.
Determines which types of events are recorded in the Dns. Specifies which character standard is used when checking DNS names. Determines whether a DNS server performs recursive name resolution. Determines the order in which host records are returned when a server has multiple host records for the same name.
Determines whether DNS filters records that are saved in a cache. Specifies the path of a custom plug-in. Determines a DNS server's behavior when it encounters an erroneous record while loading a zone. Prohibits dynamic updates of specified types of records. Specify a setting, a zone name, and, as an option, a value. Parameter values use this syntax: zonename parameter [value]. Name server NS resource records that were previously registered for this zone are not affected.
Therefore, you must remove them manually if you do not want them. Determines how many seconds a DNS zone waits for a forwarder to respond before trying another forwarder. This value overrides the value that is set at the server level. Sets a time interval for a zone during which no refreshes can dynamically update DNS records in a specified zone.
Sets a time interval for a zone during which refreshes can dynamically update DNS records in a specified zone. Determines which secondary servers can receive zone updates from the primary server for this zone. Specifies the type of resource records to be listed and the type of data that is expected. Any setting that the info command returns can be specified individually.
If a setting is not specified, a report of common settings is returned. Specifies the type of test to perform. Executes the command without asking for confirmation. Because nodes can have more than one resource record, this command requires you to be very specific about the type of resource record that you want to delete. If you specify a data type and you do not specify a type of resource record data, all records with that specific data type for the specified node are deleted. Sets the number of seconds that the DNS server waits for a response from the forwarder.
By default, this value is five seconds. Prevents the DNS server from performing its own iterative queries if the forwarder fails to resolve a query. Allows the DNS server to perform its own iterative queries if the forwarder fails to resolve a query. If no listen address is specified, all IP addresses on the server listen for client requests. Specifies which statistic or combination of statistics to display. The statistics command displays counters that begin on the DNS server when it is started or resumed.
An identification number is used to identify a statistic. If no statistic ID number is specified, all statistics display. Specifies the type of zone to create. Moves the zone to the directory partition that is created for pre active directory domain controllers. These directory partitions are not necessary for native mode. You can individually specify any setting that the zoneinfo command returns.
If you don't specify a setting, all settings are returned. Lists the IP addresses of the servers that can perform the scavenge. If this parameter is omitted, all servers that host this zone can scavenge it. Specifies that only the server that is listed in the name server NS resource record for the zone is granted a transfer.
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