# MinIO Logging Quickstart Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) This document explains how to configure MinIO server to log to different logging targets. ## Log Targets MinIO supports currently two target types - console - http ### Console Target Console target logs to `/dev/stderr` and is enabled by default. To turn-off console logging you would have to update your MinIO server configuration using `mc admin config set` command. Assuming `mc` is already [configured](https://docs.min.io/docs/minio-client-quickstart-guide.html) ``` mc admin config get myminio/ > /tmp/config ``` Edit the `/tmp/config` and toggle `console` field `enabled` from `true` to `false`. ```json "logger": { "console": { "enabled": false } }, ``` Once changed, now you may set the changed config to server through following commands. ``` mc admin config set myminio/ < /tmp/config mc admin restart myminio/ ``` ### HTTP Target HTTP target logs to a generic HTTP endpoint in JSON format and is not enabled by default. To enable HTTP target logging you would have to update your MinIO server configuration using `mc admin config set` command. Assuming `mc` is already [configured](https://docs.min.io/docs/minio-client-quickstart-guide.html) ``` mc admin config get myminio/ > /tmp/config ``` Edit the `/tmp/config` and toggle `http` field `enabled` from `false` to `true`. ```json "logger": { "console": { "enabled": false }, "http": { "1": { "enabled": true, "endpoint": "http://endpoint:port/path" } } }, ``` NOTE: `http://endpoint:port/path` is a placeholder value to indicate the URL format, please change this accordingly as per your configuration. Once changed, now you may set the changed config to server through following commands. ``` mc admin config set myminio/ < /tmp/config mc admin restart myminio/ ``` MinIO also honors environment variable for HTTP target logging as shown below, this setting will override the endpoint settings in the MinIO server config. ``` MINIO_LOGGER_HTTP_ENDPOINT=http://localhost:8080/minio/logs minio server /mnt/data ``` ## Audit Targets For audit logging MinIO supports only HTTP target type for now. Audit logging is currently only available through environment variable. ``` MINIO_AUDIT_LOGGER_HTTP_ENDPOINT=http://localhost:8080/minio/logs/audit minio server /mnt/data ``` Setting this environment variable automatically enables audit logging to the HTTP target. The audit logging is in JSON format as described below. ```json { "version": "1", "deploymentid": "1b3002bf-5005-4d9b-853e-64a05008ebb2", "time": "2018-11-21T23:16:06.828154172Z", "api": { "name": "PutObject", "bucket": "my-bucketname", "object": "my-objectname", "status": "OK", "statusCode": 200 }, "remotehost": "127.0.0.1", "requestID": "156946C6C1E7842C", "userAgent": "MinIO (linux; amd64) minio-go/v6.0.6", "requestClaims": { "accessKey": "A1YABB5YPX3ZPL4227XJ", "aud": "PoEgXP6uVO45IsENRngDXj5Au5Ya", "azp": "PoEgXP6uVO45IsENRngDXj5Au5Ya", "exp": 1542845766, "iat": 1542842166, "iss": "https://localhost:9443/oauth2/token", "jti": "33527fcc-254f-43d2-a558-4942554b8ff8" }, "requestHeader": { "Authorization": "AWS4-HMAC-SHA256 Credential=A1YABB5YPX3ZPL4227XJ/20181121/us-east-1/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length;x-amz-security-token,Signature=689d9b8f67b5625ea2f0b8cbb3f777d8839a91d50aa81e6a5555f5a6360c1714", "Content-Length": "184", "Content-Type": "application/octet-stream", "User-Agent": "MinIO (linux; amd64) minio-go/v6.0.6", "X-Amz-Content-Sha256": "STREAMING-AWS4-HMAC-SHA256-PAYLOAD", "X-Amz-Date": "20181121T231606Z", "X-Amz-Decoded-Content-Length": "12", "X-Amz-Security-Token": "eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJhY2Nlc3NLZXkiOiJBMVlBQkI1WVBYM1pQTDQyMjdYSiIsImF1ZCI6IlBvRWdYUDZ1Vk80NUlzRU5SbmdEWGo1QXU1WWEiLCJhenAiOiJQb0VnWFA2dVZPNDVJc0VOUm5nRFhqNUF1NVlhIiwiZXhwIjoxNTQyODQ1NzY2LCJpYXQiOjE1NDI4NDIxNjYsImlzcyI6Imh0dHBzOi8vbG9jYWxob3N0Ojk0NDMvb2F1dGgyL3Rva2VuIiwianRpIjoiMzM1MjdmY2MtMjU0Zi00M2QyLWE1NTgtNDk0MjU1NGI4ZmY4In0.KEuAq2cQ3H7dfIB5DVuvcgBXT38mr0gthrIbVRSZcA2OWo8QiH1-DWXj9xYbndgr1p2tiEUsQ49cuszQGEVGMQ" }, "responseHeader": { "Accept-Ranges": "bytes", "Content-Security-Policy": "block-all-mixed-content", "Content-Type": "application/xml", "Etag": "", "Server": "MinIO/DEVELOPMENT.2018-11-21T23-15-06Z (linux; amd64)", "Vary": "Origin", "X-Amz-Request-Id": "156946C6C1E7842C", "X-Minio-Deployment-Id": "1b3002bf-5005-4d9b-853e-64a05008ebb2", "X-Xss-Protection": "1; mode=block" } } ``` ## Explore Further * [MinIO Quickstart Guide](https://docs.min.io/docs/minio-quickstart-guide) * [Configure MinIO Server with TLS](https://docs.min.io/docs/how-to-secure-access-to-minio-server-with-tls)