json-c: Update to version 0.17-20230812

[ipfire-3.x.git] / setup / sysctl / networking.conf

net.ipv4.ip_forward = 1
net.ipv4.ip_dynaddr = 1

net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.icmp_ratelimit = 1000
net.ipv4.icmp_ratemask = 6168

net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_synack_retries = 3

net.ipv4.conf.default.arp_filter = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.default.log_martians = 1

net.ipv4.conf.all.arp_filter = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.all.log_martians = 1

# Increase kernel buffer size maximums
net.ipv4.tcp_mem = 16777216 16777216 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 16384 16777216
net.ipv4.udp_mem = 3145728 4194304 16777216

# Prefer low latency over higher throughput
net.ipv4.tcp_low_latency = 1

# Reserve more socket space for the TCP window
net.ipv4.tcp_adv_win_scale = 2

# Enable TCP fast-open
net.ipv4.tcp_fastopen = 3

# Drop RST packets for sockets in TIME-WAIT state, as described in RFC 1337.
# This protects against various TCP attacks, such as DoS against or injection
# of arbitrary segments into prematurely closed connections.
net.ipv4.tcp_rfc1337 = 1