Cname record
A CNAME record is a DNS resource record that aliases one domain name to another canonical domain name.
Build Python Web Apps with Streamlit
A CNAME record is a DNS record that aliases one domain name to another domain name.
- How it is used
- Routes a custom domain to a deployed Streamlit app and supports DNS validation for its public certificate.
- How deep it goes
- Defines the record and demonstrates DNS-provider fields, propagation delays, proxy settings, and certificate validation.
- Examples
- Uses www.factfrenzyapp.com, an Elastic Beanstalk hostname, Cloudflare fields, and AWS-generated validation entries.
- What you can do after
- Operate/configure Cloudflare DNS to route a custom domain and prove ownership for AWS certificate issuance.
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Acing the CCNA Exam: Volume 2 Advanced Networking and Security
A CNAME record is a DNS record that maps one domain name to another as an alias.
- How it is used
- Maps one domain name to another as a DNS alias for alternate names such as www.example.com.
- How deep it goes
- Defines aliasing, contrasts address-record types, and gives examples without detailing CNAME-specific configuration.
- Examples
- Uses www.example.com pointing to example.com and a real website alias as concrete examples.
- What you can do after
- Evaluate whether a DNS mapping represents an alias or a direct IPv4 or IPv6 address mapping.
Read how Acing the CCNA Exam: Volume 2 Advanced Networking and Security explains cname record →
Related concepts
- DNS recordkind of · A DNS record is a structured Domain Name System entry associating a domain name with information such as an address, service target, or administrative value.
- externalname service typeproduced by · ExternalName is a Kubernetes Service type that aliases a service name to an external DNS name without allocating a cluster IP address.
- A recordcontrasts with · An A record is a DNS resource record that maps a domain name or hostname to an IPv4 address.
- custom domainconfigures · A custom domain is a user-chosen domain name configured to provide an alternate address for a hosted service or resource.
- domain validationused by · Domain validation is a certificate-issuance process in which a certificate authority verifies that the requester controls the domain named in the certificate request.
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