Sisäverkot

Sisäverkot, a Finnish term for internal computer networks, operate within a limited geographic scope such as a building, campus, or organization. They connect devices like computers, printers, servers, and networked sensors to enable resource sharing, data exchange, and access to internal applications. Sisäverkot are commonly contrasted with the broader public Internet, which connects networks globally.

An internal network typically comprises a local area network (LAN) that uses switches to interconnect devices at speed, access points for wireless connectivity, a router or gateway for connection to other networks (including the Internet), and security devices such as firewalls. Servers may provide files, databases, authentication, and application services. Management includes IP addressing, naming services, and network monitoring.

Common technologies include the TCP/IP protocol stack, DHCP for automatic IP addresses, DNS for name resolution, and VLANs to segment traffic. IPv4 and IPv6 are both in use. Wireless access commonly relies on Wi‑Fi standards (802.11). Network topologies often follow a star or hierarchical design with centralized management.

Security and access control involve methods such as 802.1X for network access control, authentication, authorization, and accounting (AAA) with RADIUS or similar, and VPNs for remote access. Encryption for data in transit, regular patching and monitoring, backups, and disaster recovery are also important. User policies address bring-your-own-device (BYOD) and data protection.

Applications and benefits include internal portals, file sharing, collaboration tools, printer and device management, centralized backups, and IT service delivery. Sisäverkot are essential for organizations to control data flow, automate processes, and maintain security within the trusted perimeter.