Senior Sytem Administrator
Amagi Media Labs PVT LTD
Total years of experience :9 years, 6 Months
Configuration and Troubleshooting Tasks:-
•Analysing Operating system logs for troubleshooting of problems in Linux servers.
•Check and resolve Link flapping, Mac flapping issue, SNMP alert & bad link alert.
•Server Performance monitoring (CPU, Memory, Disk utilization).
•Troubleshoot and resolved network related issue on base machine as well as on VM.
•SIEM (Security information and event management) in Linux servers and troubleshoot if any server not generating logs.
•LDAP client configuration on servers and take care of LDAP related issue.
•VMS (vulnerability management services) configuration in servers for VA scan and resolved VMS related issue.
•Storage configuration, scan and multipath configuration in Linux servers, troubleshoot mount point issue.
•McAfee installation & up gradation in Linux servers and take care of issue related to unable to install or update McAfee.
ISCSI installation & configuration to shared storage
Roles and Responsibilities:
•Patching Linux, VMware servers to the latest patch version.
•Install, configure, administer, and monitor cloud-based infrastructure (AWS)
•Implement and maintain the monitoring and alerting of production servers/storage (Zabbix, AWS Cloud Watch)
•Mentor Junior Engineers, working as part of a team for a 24/7 rotating schedule
•Working knowledge of AWS services, such as Elastic Compute Cloud (EC2), Elastic Block Storage (EBS), and Simple Storage Service (S3).
•Supporting Security team in terms of PCI Audits and fixing vulnerabilities in Linux, VMware.
•Creating IAM roles & delegating the access on services.
•Creating Security Groups & hosting the EC2 instances for filtering the packets.
•Creating VPC, creating the public subnets & private subnets for hosting the EC2 instances
•Maintenance and provisioning of DELL/HP hardware, OS's and software
•Maintain and provisioning of VMWARE ESXI server 5, 6 versions
•Created break fix environment for RHEL using VMWare to train team members.
•Performed Configuration Management with Kick start, Puppet and Spacewalk
•Installing and managing OSSEC on Linux machines and monitoring for security logs and events.
•Working on incidents related to Linux and VMware environment and fixing level 3 issues.
•AWS instance creation, installation and managing security groups.
•Handling ILO Upgrades for different versions.
•Creating instances through Vagrant and managing it for testing and deployment.
•Installing Anti-virus on Linux machines and managing it for security team.
•Managing client Infrastructure and deploy application and troubleshoot for issues.
•Handling and reporting hardware related issues.
•Providing log and audit evidences to security team in case of Audits.
•Installation, Configuration, Administration and Troubleshooting of ESX 5.x, Vsphere 5.0, 6.0
Roles and Responsibilities:
•Setting up the application in production servers
•Launching the apache and tomcat application servers
•Monitoring tools like kingdom and zabbix has been used
•Monitoring and fixing the issues
•Jira service now ticketing tools has been used for solving p1 p2 tickets
•24/7 & 100% uptime of the production servers
•Patch deployment for every one week and troubleshooting
•Effective use of Capistrano for thousands of servers and Jenkins for java servers
•Apache active MQ & RabbitMQ for handling queues
•Writing shell scripts wherever necessary
•JAM, MOBILE, RMK, COMMUNITIES URLS DEPLOYED & MANAGED
•https://jam4.sapjam.com
•https://mobile19.sapsf.com
•https://command8.jobs2web.com
•https://clients8.jobs2web.com
•Managed all the production servers pf SAP HCM SUCCESSFACTORS
•Managed all the p1 calls globally
•Fixed issues and documented it
•Automated jobs using Jenkins
Mail Server Send-mail, Dovecot, Web Server Apache Nginx(HTTPS)
•Complete installation and configuration of Linux Servers.
•Different RAID levels
•DHCP, NFS, DNS, SAMBA, FTP, TELNET, SSH setup and configuration
•Diagnosis, solution and root cause analysis of application, hardware, network, and operating system related issues
•Configuration of private package repository with YUM.
•User accounts and access configuration, File Quota handling, Disk Utilization, Swap Space.
•LVMs configurations and disk space management
•Git repositories handling and deployement
•Remote Backup of Linux Servers using Rsync/rsnapshot utility
•Ubuntu/suse/redhat os installation
•Server deployement Nginx/apache
•Writing scripts using bash
•Handling / interacting with Mysql
•svn subversion deployement
•Performance monitoring using Nagiox/Nagiox xi
•Controlling configuring and installing websites using cpanel
•Controlling of network/switches/routers
•Complete installation and configuration of SSL Certificates
•Planning and implementation of Enterprise Applications like CRM (SugarCRM), Redmine(Ruby project management)
•Trouble shooting LAN (RJ-45)/Connections to the Systems
•Fixing the Bugs for Heart Bleed and Ghost Vulnerability and Grub Rescue errors
•Writing Cronjobs For automation of Tasks
•Enhancing Selinux in Linux Servers
•Complete installation of all the Application Software’s in Linux /windows based Systems
•Mysql backup in Production DB Servers
•Server Hardening techniques using Fail2ban and port knocking tools
From
MCA completed in 2013 with 73%