Knowledge About Network Configuration
knowledge about network configuration, virtualization, interoperability and even Windows operating systems. A Linux system administrator must have technical knowledge of network security, firewalls, databases, and all aspects of a functioning network.
The reason is that you are primarily a Linux SA, but also part of a larger support team that often has to work together to solve complex problems. In one way or another, security is often the cause of problems encountered by a support team.
A user may not have access or adequate access. A daemon may not have appropriate permissions to write to a registry directory. A firewall exception has not been registered in the current configuration of a network appliance. There are hundreds of sources of error in a network. Your job is to identify and fix bugs.
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