Sagar Kumar Email & Phone Number

Results-driven Senior Linux Security Administrator with extensive experience in maintaining and securing large-scale Linux infrastructures. Currently responsible for the security and administration of Linux servers, with a strong focus on vulnerability management, security hardening, and incident response. Proven ability to lead teams and implement effective security measures in dynamic environments.Skilled in leveraging OpenSCAP and the Advanced Intrusion Detection Environment for effective OS Hardening, I enhance security across different Linux flavours, specially Red Hat Linux. My expertise extends to managing system resources with LVM, configuring secure connections using SSH, and implementing file-sharing solutions with NFS and Samba.I enforce robust security policies through SELinux. Additionally, I possess extensive experience with virtualization technologies, including Vcenter and ESXi, optimizing resource allocation and system performance.  I conduct thorough Log Analysis and Filesystem Monitoring to ensure system integrity and efficiency. My capabilities also encompass Server Utilization Monitoring and Clustering solutions, aimed at enhancing system availability and reliability.With a proactive and analytical approach, I strive to maintain a secure and high-performing IT infrastructure, driving continuous improvement in security protocols and operational efficiency.

Listed skills include Security, Penetration Testing, Network Security, Information Security, and 12 others.