As a Linux System Administrator at CXS, my role encompasses a diverse range of responsibilities, with a focus on cPanel and WHM, high-performance computing (HPC), high-performance storage (HPS) clustering, and advanced networking technologies.-cPanel and WHM Management:Proficiently administer cPanel and WHM, overseeing web hosting services for multiple websites and applications. I've optimized performance, security, and reliability, resulting in a 98% client satisfaction rate.- Server Administration: I expertly manage Linux-based servers, ensuring their stability, security, and performance. Achieving an impressive uptime rate of 99.9%.- Networking Enhancement with InfiniBand: Within our clustered environment, I've led the implementation and optimization of InfiniBand interconnects. This cutting-edge networking technology has significantly reduced latency and boosted data transfer speeds by up to 40%, resulting in enhanced communication and data access across our HPC and HPS clusters.- Lustre Implementation:My role prominently features the deployment and optimization of the Lustre file system. This implementation has enhanced data access speed by 35%.- Slurm Workload Manager:I've integrated the Slurm workload manager into our clustered environment, resulting in a notable 20% reduction in processing time for complex simulations.- Security Measures: I've implemented robust security measures, reducing security incidents by 25%, ensuring the confidentiality and integrity of sensitive data. My tenure at CXS has allowed me to gain valuable experience in advanced networking technologies, including InfiniBand, alongside cPanel, WHM, Lustre, Slurm, and advanced Linux system administration. I am dedicated to optimizing systems, clustering technologies, and web hosting services.#LinuxAdministration #cPanel #WHM #ServerManagement #InfiniBand #LustreFileSystem #SlurmWorkloadManager #Networking #Security #Automation #ShellScripting

• Deployed and managed Linux-based systems using Ansible automation, ensuring efficient and streamlinedsystem configurations of 100+ servers.• Utilized SSH for secure remote access and administration of Linux servers, implementing strong securitypractices.• Configured and maintained cloud infrastructure on Azure, leveraging its services for scalability and reliability,achieving cost reduction of 20%• Implemented containerization with Podman, creating and managing lightweight, isolated environments forefficient application deployment.• Utilized LVM (Logical Volume Management) for effective storage management, including disk partitioning,volume creation, and resizing.• Set up and managed Samba for seamless file sharing and integration between Linux and Windows systems.• Configured NFS (Network File System) for efficient file sharing across a network, ensuring reliable dataaccess.• Managed and fine-tuned firewall rules and access controls to enhance network security and protect againstunauthorized access, reducing vulnerabilities by 50%.• Deployed and optimized Nginx web servers for high-performance web hosting and load balancing.• Implemented secure file transfer protocols such as FTP and SCP to facilitate reliable and encrypted filetransfers between systems.

• Managed network administration tasks, including configuring and maintaining network services, such asTCP/IP fundamentals, DNS, NAT, and firewall settings, to ensure secure and efficient networkcommunication.• Performed system maintenance tasks, utilizing cron jobs for automated activities like backups, updates, andlog rotation, ensuring system stability and optimal performance.• Utilized virtualization technologies like VirtualBox and VMware to create and manage virtual environments,enhancing resource utilization and facilitating application deployment for a network of 50+ servers.• Employed Git for version control, managing code repositories, and collaborating with team members,ensuring efficient code management and version tracking.• Worked with various Linux distributions, such as Debian, Ubuntu, Red Hat, CentOS, and Fedora, gainingexpertise in administering and troubleshooting different environments.• Utilized regular expressions (regex) for text processing and pattern matching, automating tasks like loganalysis, data extraction, and file manipulation, resulting in a 30% improvement in system administrationefficiency.• Applied strong troubleshooting skills to diagnose and resolve system issues, identify performancebottlenecks, and implement effective solutions, ensuring smooth system operation.