OhSudo — new Cloud articlesNew Cloud articles from OhSudo: practical fixes for DevOps engineers, SysAdmins and IT folks.https://ohsudo.com/en-usAzure and Entra ID "AADSTS" errors: what the most common codes mean, and how to fix themhttps://ohsudo.com/articles/azure-aadsts-error-codes/https://ohsudo.com/articles/azure-aadsts-error-codes/Fix Microsoft Entra ID AADSTS sign-in errors: 50076 (MFA), 700016 (app not found), 7000215 (bad secret), 50011 (reply URL), 65001 (consent), 53003 (Conditional Access).Fri, 06 Nov 2026 00:00:00 GMTCloudazureentra-idoauthmfaservice-principaltroubleshootingcontact@ohsudo.com (OhSudo)AWS S3 "403 Access Denied": a checklist for every layer that can refuse youhttps://ohsudo.com/articles/aws-s3-403-access-denied/https://ohsudo.com/articles/aws-s3-403-access-denied/Fix AWS S3 "403 Access Denied": check your identity, IAM and bucket policies, ListBucket, Block Public Access, KMS keys, cross-account ownership and CloudFront, in order.Thu, 05 Nov 2026 00:00:00 GMTCloudawss3iambucket-policykmstroubleshootingcontact@ohsudo.com (OhSudo)AWS "is not authorized to perform … because no identity-based policy allows": read the error, find the missing permissionhttps://ohsudo.com/articles/aws-not-authorized-to-perform/https://ohsudo.com/articles/aws-not-authorized-to-perform/Fix AWS AccessDenied "is not authorized to perform": read who, which action and which resource, check the policy, explicit denies, bucket and KMS key policies.Mon, 02 Nov 2026 00:00:00 GMTCloudawsiams3kmspermissionstroubleshootingcontact@ohsudo.com (OhSudo)