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Show-DnsServerCache

Last Updated: 3/8/2017

SYNOPSIS

Shows the records in a DNS Server Cache.

SYNTAX

Show-DnsServerCache [-ComputerName <String>] [-CacheScope <String>] [-CimSession <CimSession[]>]
 [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm] [<CommonParameters>]

DESCRIPTION

The Show-DNSServerCache cmdlet shows all cached Domain Name System (DNS) server resource records in the following format: Name, ResourceRecordData, Time-to-Live (TTL).

EXAMPLES

Example 1: Show all resource records in a DNS server cache

PS C:\> Show-DnsServerCache -ComputerName "Win12S-05.DNSServer-01.Contoso.com"

HostName                  RecordType Timestamp            TimeToLive      RecordData

--------                  ---------- ---------            ----------      ----------

@                         NS         0                    00:00:00        a.root-servers.net.

@                         NS         0                    00:00:00        b.root-servers.net.

@                         NS         0                    00:00:00        c.root-servers.net.

@                         NS         0                    00:00:00        d.root-servers.net.

@                         NS         0                    00:00:00        e.root-servers.net.

@                         NS         0                    00:00:00        f.root-servers.net.

@                         NS         0                    00:00:00        g.root- 

Win12S-05.DNSServer-01.... A          0                    00:46:48        172.23.90.136

localhost                 A          0                    17089.09:29:04  127.0.0.1

a.root-servers.net        A          0                    00:00:00        198.41.0.4

b.root-servers.net        A          0                    00:00:00

This command shows all resource records that exist in a specified DNS server cache.

PARAMETERS

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.

The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet.

For more information about Windows PowerShell background jobs, see about_Jobs.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-CacheScope

Specifies the name of the cache scope to show.

Type: String
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-CimSession

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

Type: CimSession[]
Parameter Sets: (All)
Aliases: Session

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-ComputerName

Specifies a DNS server. The acceptable values for this parameter are: an IP V4 address; an IP V6 address; any other value that resolves to an IP address, such as a fully qualified domain name (FQDN), host name, or NETBIOS name.

Type: String
Parameter Sets: (All)
Aliases: Cn

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-Confirm

Prompts you for confirmation before running the cmdlet.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

-ThrottleLimit

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

Type: Int32
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

INPUTS

OUTPUTS

Microsoft.Management.Infrastructure.CimInstance#DnsServerResourceRecord[]

NOTES

Clear-DnsServerCache

Get-DnsServerCache

Set-DnsServerCache

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