FreeBSD

kern.ps_showallprocs=0
net.inet.tcp.msl=10000
net.inet.tcp.keepidle=5000
net.inet.tcp.keepintvl=7500
net.inet.tcp.blackhole=1
net.inet.udp.blackhole=1
net.inet.tcp.tcbhashsize=512
net.inet.tcp.log_in_vain=1
net.inet.udp.log_in_vain=1
net.inet.tcp.msl=10000
net.inet.tcp.keepidle=5000
net.inet.tcp.keepintvl=7500
net.inet.tcp.blackhole=1
net.inet.udp.blackhole=1
net.inet.tcp.tcbhashsize=512
kern.ipc.somaxconn=4096
kern.ipc.maxsockets=4040
net.inet.ip.intr_queue_maxlen=50
kern.maxfiles=65535
vfs.vmiodirenable=1
net.inet.tcp.sendspace=32768
net.inet.tcp.recvspace=57344
net.inet.tcp.inflight_enable=1
kern.ipc.shm_use_phys=1
net.inet.tcp.msl=10000
net.inet.ipf.fr_tcpidletimeout=864000
net.inet.ipf.fr_tcpclosewait=120
net.inet.ipf.fr_tcplastack=120
net.inet.ipf.fr_tcptimeout=240
net.inet.ipf.fr_tcpclosed=60
net.inet.ipf.fr_tcphalfclosed=300
net.inet.ipf.fr_udptimeout=90
net.inet.ipf.fr_icmptimeout=35

NetBSD

vfs.nfs.iothreads=8
kern.maxproc=8192
kern.maxfiles=8192
kern.mbuf.nmbclusters=8192
machdep.unaligned_print=1
machdep.unaligned_fix=1
machdep.unaligned_sigbus=0
proc.1.rlimit.maxproc.soft=120
proc.1.rlimit.memoryuse.soft=20971520
proc.1.rlimit.memoryuse.hard=20971520
proc.1.rlimit.memorylocked.soft=20971520
proc.1.rlimit.memorylocked.hard=20971520

OpenBSD
lupa.lagi=1