A network administrator is the designated person in an organization whose responsibility includes the maintenance of computing infrastructures with an emphasis on networks. Responsibilities may vary between organizations, but on-site servers, software and network interactions, as well as network integrity/resiliency are key areas of focus.

This includes the deployment, maintenance and monitoring of network equipment: switches, routers, firewalls "Firewall (computing)"), etc. Network administration activities typically include assigning addresses, assigning routing protocols, and configuring routing tables, as well as configuring authentication and authorization of services.

Frequently included are some other activities such as maintaining network facilities such as drivers and settings for computers and printers. Sometimes the maintenance of some types of servers such as VPN, intrusion detection systems, etc. is also included.

Network analysts and specialists focus on network design and security, particularly troubleshooting or debugging network-related problems. Their work also includes maintaining network authorization infrastructure.

Some functions of network management include:.

In order to manage networks in the most efficient way possible, a network administrator must have the best tools. You will also be able to get the most out of your networks. Below we list the most used network tools:[1]​.