DevOps

Overview You tried a Docker command and got: permission denied while trying to connect to the Docker daemon socket at /var/run/docker.sock This means your current user lacks permission to access the Docker daemon’s UNIX socket. The......

Overview Error seen by the Docker CLI: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? This means the Docker client cannot talk to the daemon over the Unix socket. Common causes: The......

What this error means Git tried to contact the remote (origin) but could not authenticate, reach it, or find the repository. The most common causes are: Wrong remote URL (typo, protocol mismatch) Missing or unusable SSH key Insufficient......

Overview The error "Permission denied (publickey)" means the SSH server rejected your authentication because it didn’t accept any public keys you offered. For Git (GitHub, GitLab, Bitbucket, or self-hosted), this typically stems......

Overview If you see fatal: Authentication failed when pushing over HTTPS, your credentials were rejected by the remote. Common causes: Using a password instead of a Personal Access Token (PAT) Wrong or expired token, missing scopes, or......

Overview This guide shows practical ways to diagnose and fix the Git error: remote: Repository not found fatal: repository '...' not found It applies to GitHub and GitLab, via HTTPS or SSH, and covers remotes, permissions, credentials, SSH......

Overview The Git error "fatal: repository not found" usually means the remote URL is wrong or your credentials lack access. In DevOps pipelines, it also arises from missing CI secrets, SSO/policy constraints, or submodules that......

Overview A non-fast-forward push rejection happens when your local branch is behind or diverged from the remote branch. Git refuses to update the remote because it would drop or overwrite remote commits. Typical error: ! [rejected] main......

What this error means Git rejects your push when the remote branch has new commits you don’t have locally. The push would not be a fast-forward, so Git stops you to protect others’ work. The error typically reads: Updates were rejected......

Overview The error “fatal: not a git repository (or any of the parent directories): .git” means Git can’t find a repository root (a .git directory) starting from your current folder and walking up the directory tree. Common causes: You’re......

Overview This guide helps you resolve Git’s error: failed to push some refs. It focuses on DevOps workflows and Git remotes, covering the common causes and safe fixes. Typical root causes: Remote has new commits (non-fast-forward). No......

Overview The Git error “error: src refspec main does not match any” means Git can’t find a local ref named main to push. Common causes: You have no commits yet. Your local branch isn’t named main (e.g., still master). You’re not on the......