Configure proxy settings

Configure the corporate proxy so developers on the dev VLAN can access external package registries while blocking known malicious domains. Allow outbound HTTPS to registry.company.com, pypi.org, npmjs.org, and docker.io; deny direct outbound connections to IP ranges used for known malware feeds. Apply the proxy exception for build-server-2 and ci-runner-01. Verify by fetching a package from pypi and pulling an image from docker.io through the proxy, and record the success logs.

Before I show this proxy configuration to the security committee, make it easy for them to approve: surface the list of allowed registries at the top, make the exception list obvious, highlight any developer workflows that will break (local docker pull, apt-get on laptops), and point out what audit logs will be produced. Call out the fallback plan for teams that need temporary exceptions and recommend how long they should be timeboxed.

I flipped the proxy onto the dev VLAN and now several CI pipelines fail when pulling base images, but local web browsing works. I don’t know if this is a DNS interception issue, a missing HTTPS CONNECT allow rule, or blocked registry IP ranges. The build queue is backing up and engineers are blocked. What is the most likely diagnosis and the fastest, low-risk fix to get pipelines moving while we debug?

Over the past year we’ve granted many temporary proxy exceptions for teams and then never cleaned them up; our rule set is cluttered and auditing is difficult. I want a habit to prevent this from recurring. Should we require expiration dates on exceptions, a quarterly cleanup review, or a service catalog approval step? Recommend one primary habit to adopt and one immediate metric to show improvement.