Security instructions when using a public IP address

When using an public ip address, your network is exposed to access from the Internet. It is therefore essential that you observe the following security instructions so that your network is best protected against cyber attacks and infection by malware.

Safety instructions (security checklist).

  • Set a secure password
    Make sure to change the factory default passwords on your network devices and routers and set a secure password.
  • Enable firewall
    Secure your accessible network devices against unauthorised access from the Internet by using a firewall.
  • Port forwarding only for required ports
    Instead of "forwarding all ports" in your router, it is better to set up Port Forwarding (Forwarding) to the destination device only for the required ports. A description of how to set up port forwarding can usually be found in the manual of the router you are using.
  • Regular software updates
    New software releases close known security gaps and thus continuously improve protection against possible cyber attacks. Make sure all routers and network devices always have the latest software versions installed.
  • Keep your employees informed about threats from the internet
    Make your employees aware of possible dangers from the internet so that they do not open file attachments from unknown senders or download files from unknown internet sites. This reduces the risk of your network devices being infected by Malware (e.g. ransomware malware Locky).
  • Encrypt your data transmission
    Data transmission over the internet should be encrypted. Most routers and network devices supported appropriate encryption protocols, such as IPsec.
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