什么是 DNS CNAME 记录? “规范名称” (CNAME) 记录用于将别名域名指向一个 "规范" 域名。当一个 域 或子域是另一个域的别名时,CNAME 记录被用来代替 A 记录。所有 CNAME 记录都必须指向一个域名,而不是指向一个 IP 地址。想象一下,在一个寻宝游戏中,每条线索都指向另一条线索,而最后的线索则指向宝藏。
资源记录(在提供程序中)说明 MicrosoftDNS_AType 名称到地址映射记录 MicrosoftDNS_AAAAType 主机到 Ipv6 地址记录 MicrosoftDNS_AFSDBType Andrew 文件系统数据库服务器记录 MicrosoftDNS_ATMAType ATM 地址到名称记录 MicrosoftDNS_CNAMEType 规范名称记录 MicrosoftDNS_HINFOType 主机信息记录 MicrosoftDNS_ISDNType 综合...
SOA records contain zone information for zone files or DNS servers. Because DNS zone transfer is the process of sending DNS record data from a primary name server to a secondary name server, and SOA records are transferred first, an SOA record is required for each DNS zone. CNAME record A ...
由于区域顶点(名称为“@”)始终包含创建区域时创建的 NS 和 SOA 记录集,因此不能在区域顶点创建 CNAME 记录集。 这些约束起源于 DNS 标准,并非 Azure DNS 的限制。 NS 记录 区域顶点(名称为“@”)处的 NS 记录集将随每个 DNS 区域自动创建,并在删除该区域时自动删除。 无法单独删除该项。
Types of DNS Records A AAAA CNAME MX PTR NS SOA SRV TXT NAPTR The above DNS records are mostly used in all DNS Configurations. Now we will see each one with examples. A Record An A record or address record. Address Record, assigns an IP address to a domain or subdomain name. When ...
A (address)Maps a host name to an IP address. When a computer has multiple adapter cards or IP addresses, or both, it should have multiple address records. CNAME (canonical name)Sets an alias for a host name. For example, using this record, zeta.microsoft.com can have an alias aswww...
CNAME(Canonical name for a DNS alias). Note that if a site name has a CNAME record associated with it, then it cannot have any other record types. In addition, CNAME records should not point to site names which themselves have associated CNAME records, so CNAME only provides one l...
Examples of CNAME records within the Bluehost DNS Record Interface. MX Entry An MX Entry (Mail Exchanger) directs email to a particular mail server. Like a CNAME, MX Entries must point to a domain and never point directly to an IP address. ...
The target domain for a CNAME record should also have a normal A-record resolution. Chaining or looping CNAME records is not recommended. Note In some cases, a CNAME record can be an effective way to redirect traffic from one domain to another while keeping the same URL. However, keep in...
The SOA and CNAME record types are exceptions. The DNS standards don't permit multiple records with the same name for these types, therefore these record sets can only contain a single record.For more information about DNS records in Azure DNS, see DNS zones and records....