linux server management ansible infrastructure cxfs file system centos7 servicenow cyber security linux scheduling grafana android (operating system) release management database application bash installation jupyter mysql backup and restore software installation perl apache ambari logical volume manager samba jira wrike nginx scripting user account control hadoop distributed file system (hdfs) account management system administration nagios shell script unix research linux administration preventive maintenance system configuration cloud troubleshooting threat management business intelligence odql - object database query language operations cron electronics python network management bitbucket jupyter notebook automation bind performance tuning server side experience design