sysctl - Linuxカーネルのパラメータを設定する | Linuxチューニング

# sysctl -a
sunrpc.tcp_slot_table_entries = 16
sunrpc.udp_slot_table_entries = 16
sunrpc.max_resvport = 1023
sunrpc.min_resvport = 650
...
net.ipv6.conf.eth1.max_addresses = 16
net.ipv6.conf.eth1.max_desync_factor = 600
net.ipv6.conf.eth1.regen_max_retry = 5
net.ipv6.conf.eth1.temp_prefered_lft = 86400
net.ipv6.conf.eth1.temp_valid_lft = 604800
net.ipv6.conf.eth1.use_tempaddr = 0
net.ipv6.conf.eth1.force_mld_version = 0
...

# sysctl -a | grep tcp
sunrpc.tcp_slot_table_entries = 16
net.ipv4.tcp_bic_beta = 819
net.ipv4.tcp_tso_win_divisor = 8
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_bic_low_window = 14
net.ipv4.tcp_bic_fast_convergence = 1
...

sysctl -w net.ipv4.tcp_syncookie=0

sysctl -p