Check passive OS fingerprint here: http://whatleaks.com:61099/check_pof/?1510539913111
sysctl -w net.ipv4.tcp_timestamps=0 sysctl -w net.ipv4.tcp_window_scaling=0 iptables -t mangle -A POSTROUTING -o eth0 -p tcp -j TTL --ttl-set 128
Check passive OS fingerprint here: http://whatleaks.com:61099/check_pof/?1510539913111
sysctl -w net.ipv4.tcp_timestamps=0 sysctl -w net.ipv4.tcp_window_scaling=0 iptables -t mangle -A POSTROUTING -o eth0 -p tcp -j TTL --ttl-set 128