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Senior Linux Administrator (DNS)
- Job Title
- Senior Linux Administrator (DNS)
- Requirement ID
- Begin Date
- Dahlgren, VA 22485
- Other Location
The Senior Linux Administrator will be responsible for system administration and customer support of servers and workstations in a Research, Development, and Testing, and Engineering (RDT&E) environment.
Team Member will:
- Provide Red Hat Enterprise Linux system administration, including technical problem solving and in-depth consulting for problems involving system operations
- Use automated installation methods and system imaging (e.g. Kickstart/Anaconda)
- Use of cryptographic log on methods (e.g. PKI)
- Implement DISA STIG and work within Configuration-Managed Environments.
- Work as part of a team responsible for administration and management of servers, end-user workstations in both unclassified and classified network environments.
- Analysis, design, and implementation of modifications to the system software in order to improve system performance by correcting errors
- Participate in planning new hardware acquisitions, interact with vendors, educate customers, and communicate and collaborate with other projects within the organization
- Work closely with engineers to help them use workstations and servers to solve their computationally intensive problems
- Support individual user workstations and associated software support
- Support for application installation, licenses management, software tracking/distribution and backup/recovery of system configurations and user data files.
- Understand and use essential tools for handling files, directories, command-line environments, and documentation
- Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services
- Configure local storage using partitions and logical volumes
- Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems
- Deploy, configure, and maintain systems, including software installation, update, and core services
- Manage users and groups, including use of a centralized directory for authentication
- Manage security, including basic firewall and SELinux configuration
- Configure static routes, packet filtering, and network address translation
- Set kernel runtime parameters
- Produce and deliver reports on system utilization
- Use shell scripting to automate system maintenance tasks
- Configure system logging, including remote logging
- Configure a system to provide networking services, including HTTP/HTTPS, DNS, SMTP, SSH and NTP
- Required Skills
• Demonstrate experience in system administration of Linux-based servers and Linux-based workstations.
• Experience with Department of Defense security guidelines and policies (DISA STIGS).
• Well-developed Linux system management skills.
• Must meet DoD 8570 Cyber Security Workforce (CSWF) criteria of Information Assurance
• Technical (IAT) Level III certification within 4 months of hire.
• Specific experience with Red Hat Enterprise Linux (RHEL 7.x)
Active US Government Security Clearance
- Optional Skills
• Knowledge of corporate services including: DNS, SMTP, RHEV, Splunk, Apache.
• Demonstrate experience managing the installation and maintenance of IT infrastructure.
• Hardware experience with Dell systems.
• Remedy ITSM ticket Management experience.