vi config/development.json { "log4js": { "appenders": [{ "category": "access", "type": "dateFile", "filename": "/tmp/access.log", "pattern": "-yyyy-MM-dd", "backups": 3 }, { "category": "system", "type": "dateFile", "filename": "/tmp/system.log", "pattern": "-yyyy-MM-dd", "backups": 3 }, { "category": "error", "type": "dateFile", "filename": "/tmp/error.log", "pattern": "-yyyy-MM-dd", "backups": 3