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@kwilczynski
Last active July 15, 2024 07:24
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Few tweaks ...
/etc/sysctl.conf:
kernel.printk = 4 4 1 7
kernel.printk_ratelimit = 5
kernel.printk_ratelimit_burst = 10
net.ipv6.conf.lo.disable_ipv6 = 1
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.all.use_tempaddr = 2
net.ipv6.conf.all.router_solicitations = 0
net.ipv6.conf.all.accept_ra_rtr_pref = 0
net.ipv6.conf.all.accept_ra_pinfo = 0
net.ipv6.conf.all.accept_ra_defrtr = 0
net.ipv6.conf.all.autoconf = 0
net.ipv6.conf.all.dad_transmits = 0
net.ipv6.conf.all.max_addresses = 1
net.ipv6.conf.default.use_tempaddr = 2
net.ipv6.conf.default.router_solicitations = 0
net.ipv6.conf.default.accept_ra_rtr_pref = 0
net.ipv6.conf.default.accept_ra_pinfo = 0
net.ipv6.conf.default.accept_ra_defrtr = 0
net.ipv6.conf.default.autoconf = 0
net.ipv6.conf.default.dad_transmits = 0
net.ipv6.conf.default.max_addresses = 1
kernel.kptr_restrict = 1
kernel.exec-shield = 1
kernel.randomize_va_space = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.all.log_martians = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.all.secure_redirects = 1
net.ipv4.conf.all.send_redirects = 0
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.default.rp_filter = 1
net.ipv4.conf.default.secure_redirects = 1
net.ipv4.conf.default.send_redirects = 0
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
fs.protected_hardlinks = 1
fs.protected_symlinks = 1
kernel.yama.ptrace_scope = 1
vm.mmap_min_addr = 65536
fs.file-max = 1048576
fs.suid_dumpable = 2
kernel.core_uses_pid = 1
kernel.msgmax = 65536
kernel.msgmnb = 65536
kernel.panic = 300
kernel.panic_on_oops = 0
kernel.pid_max = 131072
kernel.threads-max = 1048576
kernel.sem = 256 262144 128 1024
kernel.sysrq = 1
vm.laptop_mode = 0
vm.swappiness = 0
vm.vfs_cache_pressure = 50
vm.dirty_background_ratio = 5
vm.dirty_ratio = 10
vm.max_map_count = 1048576
vm.min_free_kbytes = 131072
kernel.shmmax = 536870912
net.ipv4.tcp_rfc1337 = 0
net.ipv4.ip_forward = 0
net.ipv4.tcp_ecn = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_dsack = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.ip_local_port_range = 10240 65535
net.ipv4.tcp_congestion_control = cubic
net.core.optmem_max = 40960
net.core.netdev_max_backlog = 16384
net.core.somaxconn = 1024
net.core.hot_list_length = 256
net.ipv4.tcp_max_syn_backlog = 4096
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.udp_wmem_min = 16384
net.ipv4.udp_rmem_min = 16384
net.core.rmem_default = 5242880
net.core.wmem_default = 5242880
net.ipv4.tcp_mem = 8388608 65536 16777216
net.ipv4.udp_mem = 8388608 65536 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_rmem = 4096 81920 16777216
net.ipv4.tcp_max_orphans = 16384
net.ipv4.tcp_max_syn_backlog = 10240
net.ipv4.tcp_max_tw_buckets = 40960
net.ipv4.tcp_reordering = 5
net.ipv4.tcp_fin_timeout = 10
net.ipv4.neigh.default.proxy_qlen = 96
net.ipv4.neigh.default.unres_qlen = 6
net.unix.max_dgram_qlen = 50
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl = 90
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_synack_retries = 3
net.ipv4.tcp_orphan_retries = 2
/etc/sysfs.conf:
/sys/class/net/eth0/queues/rx-0/rps_cpus = f
/sys/class/net/eth0/queues/tx-0/xps_cpus = f
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