Linux System Administrator
1 day ago
This is a Remote opportunity For the DNS role we need a resource that understands DNS hierarchy front to back, the difference between SOA and NS records for example, how upstream resolution works, what is a root hint server. Intermediate python experience. Example Able to create a python script to modify N+ bind servers to add 2 a-records and remove 1-cname and then do rolling restarts of the bind service, test and verify change was successful
Basic networking is a plus, ideally they understand layer 1 - 7 of the OSI model, basic subnetting and can describe in detail what happens when a user runs curl from their laptop
Answer should include
- DNS resolution
- TLS Negotiation
- HTTP Req/Response
- caching is a bonus"
communication skills more thoroughly to ensure they can confidently explain their projects and work experience.
Conduct a technical screening focusing on the skillsets mentioned in their resumes to verify their understanding of basic concepts.
Technical skills to look out for: DNS, RHEL Linux, Networking - on-prem, Scripting
• Environment: RHEL, Bind, PowerDNS, Terraform, Ansible, AWS, GCP
• Coding: Shell, Perl, PHP, Python, C++, golang
• Development: maintain and improve existing code consisting of tools, automation, services,etc. Develop new solutions for our internal customers
• Troubleshooting: understanding of *nix os, networking protocols, applications our services run to be able to diagnose and fix problems
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