DevOps

Where and in what format are configuration parameters stored for OpenSSH?

Why can a file write command fail even if 'df -h' shows free space?

How did you set up GitLab Runners? Share your experience working with GitLab.

What are the ways to improve application performance in a Linux environment?

What exactly did you standardize in CI/CD? Were these real best practices or just good work with GitLab CI?

Middle

РЖД

What is Split DNS and how to solve the problem of using corporate VPN and external VPN simultaneously to access blocked resources?

What version of Java is used in your current work or project?

Junior — Middle

Лукойл

What is the difference between DROP and REJECT in iptables? Which is better to use from a security perspective?

Senior

Wildberries

What role does the FROM instruction play in a Dockerfile if it is the only command in the file?

Explain what the Sysprep tool does in the Windows Server operating system and what it is used for.

What consensus algorithms are you familiar with and what guarantees do they provide?

Middle

Т-Банк

Explain how alerts are classified and prioritized in monitoring systems.

How do you organize the launch and configuration of services with a central entry interface?

Junior — Middle

Контур

Tell me about indexes in Oracle — what types do you use and in what cases?

Is it possible to use Docker Compose with configuration files formatted in JSON?

What methods exist for deploying a Helm chart across three different geographic or logistical zones?

What are the potential disadvantages and limitations of virtualization in Docker?

How to restrict access for different user groups to different servers in Ansible?

Senior

Wildberries

How is secret management implemented in Kubernetes, and how do developers interact with secrets when developing applications?

How can the amount of free RAM in the system be determined?