SAA-C03 Certification: Route 53
I am a dedicated software engineer with a deep passion for security and a commitment to developing robust and scalable solutions. With over three years of hands-on experience in the .NET ecosystem, I have built, maintained, and optimized various software applications, demonstrating my ability to adapt to diverse project needs. In addition to my expertise in .NET, I have six months of specialized experience working with Spring Boot and ReactJS, further broadening my skill set to include full-stack development and modern web technologies. My professional journey includes deploying small to medium-sized systems to cloud platforms and on-premises environments, where I have ensured reliability, scalability, and efficient resource utilization. This combination of skills and experience reflects my versatility and commitment to staying at the forefront of the ever-evolving tech landscape.
The difference between CNAME and ALIAS
AWS resources (Load Balancer, CloudFront,…) expose an AWS hostname:
- lb1-123.us-east-2.elb.aws.com and you want myapp.mydomain.com
| CNAME | ALIAS |
| Points a hostname to any other hostname | Points a hostname to an AWS resource |
| Only works for NON-ROOT domain | Works for ROOT & NON-ROOT |
| Free & Native health check | |
| Can’t set the TTL |
Alias Records Targets
Elastic Load Balancers
CloudFront
API Gateway
Elastic Beanstalk
S3 Websites
VPC interface endpoints
Global accelerator
You can not set an ALIAS record for the EC2 DNS name