Note that the topics covered in this article mean that much of the content uses technical terminology.
Lancaster University blocks a small number of applications and protocols from accessing the internet. This is done to improve the security of the University IT network and also for regulatory reasons.
Here are the main applications and protocols that are affected:
BitTorrent is blocked because it is often used by illegal streaming sites to distribute copyrighted material.
Devices that have been configured to use an external DNS such as Google or Cloudflare for name resolution are blocked.
Internal domain name resolution, provided by the University to all devices by default, improves performance and protects devices from known malicious sites.
Remote connections that don’t use a supported method such as VPN are likely to be blocked over time.
SMTP connections on port 25 (the default port for SMTP) are blocked to reduce the risk of ‘infected’ machines sending spam from the University network.