tcp_challenge_ack_limit

file: /proc/sys/net/ipv4/tcp_challenge_ack_limit
variable: net.ipv4.tcp_challenge_ack_limit
Official reference

Limits number of Challenge ACK sent per second, as recommended in RFC 5961 (Improving TCP’s Robustness to Blind In-Window Attacks) Default: 100

source

Last update: 2018-12-09 18:93:01 UTC

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