# Alibabacloud Oss Cross Account Auth Diagnosis

> Read-only OSS cross-account auth diagnosis: attributes NoPermission/AccessDenied to trust-policy…

Read-only OSS cross-account auth diagnosis: attributes NoPermission/AccessDenied to
trust-policy gaps, RAM-policy scope, Bucket-Policy+RAM dual-grant, AssumeRole failures;
emits templates only. Triggers: "cross-account access failed", "trust policy error",
"cross-account replication permission error", "AssumeRole failed on OSS",
"cross-account migration authorization", "peer account cannot read my bucket",
company/partner account, account transfer, EncodedDiagnosticMessage decode.
Do NOT use: transfer/timeout (use alibabacloud-oss-transfer-error-code-diagnosis);
endpoint (use alibabacloud-oss-endpoint-internal-diagnosis); CRR health (use
alibabacloud-oss-crr-config-check); ossfs (use
alibabacloud-oss-ossfs-mount-diagnosis); direct-link 403 (use
alibabacloud-oss-direct-access-link-diagnosis); signed-URL (use
alibabacloud-oss-presigned-url-v4-diagnosis); same-account RAM (use
alibabacloud-oss-security-incident-forensics).

- Page: https://ss33.ai/skills/aliyun/alibabacloud-oss-cross-account-auth-diagnosis-95799716792
- Publisher: aliyun
- Category: [Software Development](https://ss33.ai/skills/category/software-development-t44z8z) › [DevOps & cloud](https://ss33.ai/skills/category/software-development-t44z8z/devops-and-cloud-unkt50)
- Source: https://github.com/aliyun/alibabacloud-aiops-skills/blob/32598d65d9643343f0580393355f1e4803fc5007/skills/others/cseskillshub/alibabacloud-oss-cross-account-auth-diagnosis/SKILL.md

## Skill

This skill's licence does not allow redistribution, so the store does not serve its text. Get it from the author: https://github.com/aliyun/alibabacloud-aiops-skills/blob/32598d65d9643343f0580393355f1e4803fc5007/skills/others/cseskillshub/alibabacloud-oss-cross-account-auth-diagnosis/SKILL.md