Network security

From fundamentals to hands-on

By definition, network security describes the technical and organizational protection of the internal IT infrastructure with all its data, systems, devices, and applications to enable secure digitalization. These security mechanisms not only protect the data center, but also all locations and the cloud itself. Effective network security fends off unauthorized access, data manipulation or data theft with blackmail, system paralysis (DDoS attacks), and other damage caused by hackers, malware, and viruses.

It ensures that data is exchanged confidentially and with integrity and is always available via VPN (Virtual Private Networks) or ZTNA (Zero Trust Network Access). However, secure networks are created primarily through comprehensive information on network security and network protection, as well as targeted measures to enforce cyber protection policies at all levels. The best way to get started right now is with LANCOM insider knowledge on the subject of network security!

Current situation & trends

Feature of the month

User authentication

Clear access rules for network access (network access control, or NAC for short) ensure that network security is protected through authentication and that security policies are adhered to. This means that there is always a comprehensible overview of which users, devices, and services are in the network, which identity is really behind them and who has which functions or is allowed to perform which actions. This access control can take various forms:

  • Active Directory import
  • Local user management
  • Single sign-on (Kerberos)
  • Multiple logins
  • Captive portal
  • Terminal Server Support (via Remote Desktop IP Virtualization)

Instantly more network security



As an IT admin, being responsible for network security is a con­siderable burden. But don't worry, we are at your side. Step-by-step towards greater network security. This includes router and firewall settings, LAN security, Wi-Fi settings, and general awareness throughout the company for the importance of IT security.

More about quick measures for more network security


Find the right firewall

For a secure IT network, your firewall should fit your infra­structure. With a maximum of five questions you can find the best firewall for your use case:

Firewall Matchmaker

Individual advice for your use-case

LANCOM security insights

Contemporary network security live at secIT

More top topics in network security

Your direct line to us

Most questions can be resolved best in direct contact.

We look forward to answering your questions and requests by phone or via the contact form.

Inside Sales International Team
+49 (0)2405 49936 122