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Haider S. — Mid-Level System Administrator from Pakistan

Haider S.

Mid-Level System Administrator

Pakistan No experience yet
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Languages
EnglishUrdu
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About

Haider S. is a skilled computer science professional with a Bachelor's degree in Computer Science and a certification as a RHCSA (Red Hat Certified System Administrator). He exhibits a robust understanding of Linux operating systems and possesses hands-on experience in system administration. Throughout his career, he has successfully managed servers and network security across various organizations. Haider's technical proficiency extends to a comprehensive knowledge of programming languages such as C++, Java, Python, and JavaScript, as well as expertise in data structures and algorithms. He is adept at file system and storage management, configuring systems using Virtual Data Optimizer and Logical Volume Management. Moreover, his experience encompasses network configuration, including IPv4 and IPv6, and security management with SELinux and firewalld. His broad skill set is supported by a thorough understanding of computer networking, database management, and the software development lifecycle, making him a valuable asset in the tech industry.

Experience

  • System Administrator

    Regi Model Peshawar · 2024 — Present
    Managed user accounts, groups, and local security policies, ensuring the configuration of aging passwords and standard permissions. Configured and maintained VDO (Virtual Data Optimizer) and LVM (Logical Volume Management) storage systems, including swap spaces and permanent storage mounts with UUIDs. Responsible for configuring IPv4 and IPv6 addresses, managing network teaming/bonding, and setting up basic hostname and name resolution. Set up system firewalls using firewalld to prevent unauthorized access and manage ports with rich rules. Ensured system security by configuring SELinux in both enforcing and permissive modes, supervising contexts, and correcting boolean policy issues. Enforced stringent file permissions using standard Linux permissions and Access Control Lists (ACLs) for secure multi-user environments.

Skills & Expertise

System AdministrationNetwork Security EngineerData EngineerDatabase Administration

Education

  • Bachelor of Computer Science
    Agriculture University Peshawar · 2024 — 2028
  • Bachelor's degree in Computer Science
    FSC Government Degree College Hayatabad · 2022 — 2024

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