https://vitalii-zaiats.com/tags/tcp/ Recent content in Tcp on Vitalii Zaiats Hugo en-us Thu, 26 Mar 2026 00:00:00 +0000 https://vitalii-zaiats.com/posts/tcp-fingerprinting-residential-proxies/ Thu, 26 Mar 2026 00:00:00 +0000 https://vitalii-zaiats.com/posts/tcp-fingerprinting-residential-proxies/ Probed 319,706 residential-proxy exits by their TCP SYN fingerprints — 98% Linux, two kernel defaults covering 70%+, MSS leaking the real link, and a handful of big ISPs — showing the “real user devices” are mostly a rack of Linux boxes.