- Joined
- Apr 7, 2025
Wait, they didn't even put different customers on different vlans?
If I remember right, not really - the traffic was lateral but functioned as a tunnel. Like a VPN but everyone's invited. Their early networking services back in like the 2010s had shared private IPs internally, which I think bled into consumer services.
Oh it's worse than I remembered:

From around 2008 to 2020, Linode used a flat internal network (192.168.128.0/17 per data centre) where every Linode with a private IP could see and connect to every other Linode in the same region. Regardless of customer.
They also just let everyone in the same data centre poke around each other’s boxes, people were catching /wp-login.php brute-force attempts and open MySQL ports coming from other customers. Linode even told them to treat their "private" network like a public LAN.
Last edited: