DHEERAJ MHATRE
Thane
Summary
Resourceful Linux System Administrator consistently responds to wide range of technical challenges with focused and creative approach. Highly effective at problem solving and decision making. 5+ years of progressive IT experience.
Overview
5
5
years of professional experience
Work History
LINUX SYSTEM ADMINISTRATOR
CatchMedia.inc
01.2020 - Current
- Managing the Installation, configuration of Linux Servers
- Managing the LVM (Create, Extend, Reduce)
- Responsible for User Administration
- Responsible for checking incident alert for CPU/Memory/file system utilization
- Responsible for assigning IP Address, Gateway, Netmask, Hostname for individualsmachines and setting up the network.
- Performance monitoring over Nagios monitoring tool.
- Performance monitoring AWS (EC2 service).
- Managed Disk File Systems, Server Performance, Users Creation and Granting file accessPermissions
- Manages the Linux automation task using CRON
- Software and Packages installation using YUM and RPM
Education
Bachelors Of Engineering - EXTC
University of Mumbai
Skills
- Operating Systems: RHEL, CentOS, Ubuntu, Debian
- Monitoring Tools: Nagios, Zabbix, Prometheus, Grafana
- Configuration Management: Ansible, Puppet
- Scripting Languages: Bash, Python
- Networking: TCP/IP, DNS, DHCP, iptables, firewalld
- Web & App Servers: Apache, Nginx, Tomcat
- Databases: MySQL, PostgreSQL
- Virtualization/Cloud: VMware, KVM, AWS, Azure (basic)
- Operating System: RHEL, Centos, Ubuntu
- Monitoring tool: Nagios, Zabbix
- Backup tool: Commvault, Net Backup
ROLES AND RESPONSIBILITIES
- System Monitoring & Maintenance
Monitor Linux servers using tools like Nagios, Zabbix, Prometheus, or Grafana.
- Ensure high availability and uptime of services and infrastructure.
- Identify and troubleshoot hardware, software, and network issues.
- Respond to system alerts and take proactive steps to resolve potential problems.
- User and Permission Management
Manage user accounts, groups, roles, and permissions using useradd, usermod, chmod, chown, etc.
- Enforce security policies (e.g., password expiration, login restrictions).
- Network Configuration and Troubleshooting
- Configure network interfaces, routing, firewalls (iptables, firewalld).
- Troubleshoot using tools like ping, traceroute, netstat, ss, tcpdump.
- Documentation and Reporting
- Maintain up-to-date documentation of configurations, procedures, and incidents.
- Report incidents, RCA (Root Cause Analysis), and performance trends to management.
Knowledge
- Knowledge of Nagios monitoring tool
- Knowledge of, grafana Nagios jenkins
- Knowledge of LINUX
- Knowledge of docker & kubernet
- Knowledge of aws cloud
- Basic knowledge of shell scripting
Timeline
LINUX SYSTEM ADMINISTRATOR
CatchMedia.inc
01.2020 - Current
Bachelors Of Engineering - EXTC
University of Mumbai
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