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In the HTTPS process, the account password is replaced with PAT, Git Credential Manager, or GitHub CLI. In SSH method, the private key should remain local, the public key should be added to the GitHub account, and the correct key should be selected in multi-accounts.
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remote: Support for password authentication was removed
fatal: Authentication failed
remote: Invalid username or token
Permission denied (publickey)In the HTTPS process, the account password is replaced with PAT, Git Credential Manager, or GitHub CLI. In SSH method, the private key should remain local, the public key should be added to the GitHub account, and the correct key should be selected in multi-accounts.
Do not perform a reset or force operation without seeing `git status`, active branch, remote and last commits.
Check that the HTTPS credential, SSH key, remote URL and GitHub account are correct.
Leave a rollback point with a commit or backup branch before fetching, merging or rebase.
Use feature branch flow instead of bypassing protected branch, review, CI and secret scanning rules.
Do not share PAT, private key, or recovery code.
Meaning: GitHub identity verification was rejected.
Possible cause: Old password, token, or cached credential.
Meaning: HTTPS identity/token is invalid.
Possible cause: Incorrect account, time, or permission.
Meaning: SSH could not find a suitable private key.
Possible cause: Key not attached to GitHub or missing in agent.
Meaning: Your identity was verified, but repository permissions are missing.
Possible cause: Role or token permission is insufficient.
Meaning: The organization's SSO is requesting authorization.
Possible cause: Token/key has not been authorized.
Meaning: ssh-agent is not working.
Possible cause: Agent not started.
Meaning: Credential cache is selecting a different account.
Possible cause: Multiple accounts.
Meaning: Your identity information is considered compromised.
Possible cause: Secret file committed.
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gh auth statusCLI shows session and account.
git remote -vShow HTTPS or SSH URLs.
ssh -T [email protected]GitHub verifies your SSH account.
ssh -vT [email protected]Displays tried keys.
ssh-add -lLists keys within the agent.
git config --show-origin --get-all credential.helperShow the used credential helper.
Password: GitHubAccountParolasiUse PAT/Git Credential Manager or `gh auth login`.ssh-keygen -t rsa -b 1024ssh-keygen -t ed25519 -C "[email protected]"cat ~/.ssh/id_ed25519cat ~/.ssh/id_ed25519.pubgit remote set-url origin HTTPS_URLSet the HTTPS or SSH URL according to the chosen verification method.Git for Windows, PowerShell, Git Bash, and VS Code Source Control can be used together.
HTTPS credential manager; SSH is available for long-term and multi-account development environments.
Repository role, protected branch, Pull Request, and CI policies must be managed together.
For easy start, HTTPS and Git Credential Manager are suitable for automation and multiple account; SSH is suitable for automation and multiple account.
In Git operations, account password is replaced with PAT, credential manager, GitHub CLI, or SSH.
Use only to restrict access; secret, password, private key, and customer data should not be committed again.
Only use in a consciously rewritten personal feature branch and preferably with `--force-with-lease`.
Branch protection is required if necessary; also provides review and secure main history in single-person projects.
Replace OWNER, REPO, branch, URL, and file values with your project and verify first with `git status` and `git remote -v`.
Usually no. Deleting the `.git` folder can cause loss of commit history, branch, and remote information.
We examine Windows, VS Code, Git Bash, SSH, private repository, protected branch, merge conflict and GitHub Actions problems with a secure Git flow.