Implemented robust monitoring solutions: CheckMK to track server health HTTP response times and identifyperformance bottlenecks.• Configured and optimized HTTP server settings, including virtual hosts, SSL certificates, security standards,and load balancing.• Managed Linux server environments, including CentOS, Ubuntu, and Red Hat, performing system configuration, maintenance, and routine updates to ensure optimal performance and security. Managed Apache and Nginx web servers, configuring virtual hosts, SSL certificates, and load balancing.• Configured and maintained network services, such as DNS and DHCP, ensuring seamless communication andauthentication within the network. Managed virtualization environments using tools VMware and KVM,optimizing resource utilization and scalability.• Automated routine tasks and system maintenance using Bash scripts, streamlining administrative processes.Set up and configured monitoring tools such as Nagios to detect and address issues proactively and established custom alerts and notifications. Work with MariaDB and Mysql to manage and retrieve data efficiently, ensuring data integrity and optimal application performance.• Implemented robust security measures, including firewalls, intrusion detection systems, and access control policies, to safeguard sensitive data and maintain regulatory compliance. Assisted in using infrastructure as code (IaC) principles using tools like Red Hat Ansible Automation Platform.