DNS サーバー : SPF レコードの登録2024/11/28

Windows PowerShell
Copyright (C) Microsoft Corporation. All rights reserved.

# SPF レコードの内容をセットして登録
# [-Name] の引数は特定のサブドメインに対して設定する場合はそのサブドメイン名を入力
PS C:\Users\Administrator> $recordtext="v=spf1 +ip4:172.16.0.82 -all" 
PS C:\Users\Administrator> Add-DnsServerResourceRecord -Name "." -DescriptiveText $recordtext -TXT -ZoneName "srv.world" -PassThru 

HostName                  RecordType Type       Timestamp            TimeToLive      RecordData
--------                  ---------- ----       ---------            ----------      ----------
@                         TXT        16         0                    01:00:00        v=spf1 +ip4:172.16.0.82 -all

PS C:\Users\Administrator> Get-DnsServerResourceRecord -ZoneName "srv.world" | Format-Table -AutoSize -Wrap 

# SPF レコードが登録された
HostName RecordType Type Timestamp TimeToLive RecordData
-------- ---------- ---- --------- ---------- ----------
@        NS         2    0         01:00:00   rx-7.srv.world.
@        SOA        6    0         01:00:00   [13][rx-7.srv.world.][hostmaster.srv.world.]
@        TXT        16   0         01:00:00   v=spf1 +ip4:172.16.0.82 -all
dns      A          1    0         01:00:00   10.0.0.10
fd3s     CNAME      5    0         01:00:00   rx-7.srv.world.
rx-7     A          1    0         01:00:00   10.0.0.101
rx-8     A          1    0         01:00:00   10.0.0.102
rx-8     MX         15   0         01:00:00   [10][rx-8.srv.world.]

# 確認
PS C:\Users\Administrator> Resolve-DnsName srv.world -Server 127.0.0.1 -Type txt 

Name                                     Type   TTL   Section    Strings
----                                     ----   ---   -------    -------
srv.world                                TXT    3600  Answer     {v=spf1 +ip4:172.16.0.82 -all}

# 削除する場合は以下
PS C:\Users\Administrator> Remove-DnsServerResourceRecord -ZoneName "srv.world" -RRType "TXT" -Name "." -RecordData "v=spf1 +ip4:172.16.0.82 -all" -PassThru 

Confirm
Removing DNS resource record . of type TXT from zone srv.world on RX-7 server. Do you want to continue?
[Y] Yes  [N] No  [S] Suspend  [?] Help (default is "Y"): Y

HostName                  RecordType Type       Timestamp            TimeToLive      RecordData
--------                  ---------- ----       ---------            ----------      ----------
@                         TXT        16         0                    01:00:00        v=spf1 +ip4:172.16.0.82 -all