Objective

To guide users through the process of creating a job in SanerCVEM that modifies an existing entry in the /etc/hosts file on Unix-based systems. This is essential for updating domain-to-IP mappings that may have changed due to infrastructure updates or DNS reconfigurations.

Need for This Task

Modifying host file entries is crucial when:
- A server’s IP address has changed and the old mapping causes connectivity issues.
- DNS resolution needs to be overridden temporarily or permanently.
- Internal testing or redirection is required without relying on external DNS.

Form Field Explanations

Operating System Family

Select: Unix
 This ensures the response targets Unix-based systems like Ubuntu, CentOS, etc.

Action

Select: Modify entry from host file
 This action updates an existing domain-to-IP mapping in the /etc/hosts file.

Domain Name

Enter: The current domain name that exists in the host file and needs to be changed.
 Example: old.example.com

IP Address

Enter: The current IP address associated with the domain name.
 Example: 192.168.1.10

New Domain Name

Enter: The new domain name you want to replace the old one with.
 Example: new.example.com

New IP Address

Enter: The new IP address to associate with the domain name.
 Example: 192.168.1.20

Response Name

Enter: A meaningful name for this job.
 Example: modify host entry

Response Description

Enter: A short description of what this job does.
 Example: Update host file entry for domain redirection

Target

Select: The Unix-based device(s) where this change should be applied.
 Example: ubuntu

Results from the device:

Conclusion

Modifying host file entries using SanerCVEM provides a centralized and automated approach to managing domain-to-IP mappings across Unix systems. This ensures consistency, reduces manual errors, and improves operational efficiency. By following the outlined steps and using the provided field explanations, administrators can confidently update host configurations as needed.