Share/etc/sysctl. conf and/boot/loader. conf Optimization

4.3 FreeBSD Network Optimization

# Vi/etc/sysctl. conf
======================================================== ======
Net. inet. IP. check_interface = 1
Net. inet. tcp. blackhole = 2
Net. inet. UDP. blackhole = 1
Net. inet. tcp. recvspace = 65535
Net. inet. tcp. sendspace = 65535
Kern. IPC. somaxconn = 32768
Kern. IPC. maxsockbuf = 2097152
Net. inet. IP. Redirect = 1
Net. inet. ICMP. icmplim = 100
Net. inet. tcp. always_keepalive = 1
Net. inet. tcp. delayed_ack = 1
Net. inet. UDP. maxdgram = 65535
Net. Local. Stream. sendspace = 65535
Net. Local. Stream. recvspace = 65535
Kern. maxfiles = 65536
Kern. maxfilesperproc = 65536
Net. inet. UDP. checksum = 1
Net. inet. tcp. MSL = 7500
Net. inet. tcp. syncookies = 1
Kern. securelevel = 0
Net. inet. ICMP. bmcastecho = 0
Net. inet. ICMP. maskrepl = 0
======================================================== ======
# Vi/boot/loader. conf
======================================================== ======
Kern. maxdsiz = "536870912" // this parameter is not required when your memory is smaller than MB
Kern. IPC. maxsockets = "4008"
Kern. IPC. nmbclusters = "32768"
Kern. IPC. nmbufs = "65535"
Kern. IPC. nsfbufs = "2496"
Net. inet. tcp. tcbhashsize = "2048"

/Boot/loader. conf

 

Kern. maxdsiz = "536870912"
Kern. IPC. maxsockets = "16424"
Kern. IPC. nmbclusters = "32768"
Kern. IPC. nmbufs = "65535"
Kern. IPC. nsfbufs = "2496"
Net. inet. tcp. tcbhashsize = "2048"
Kern. maxusers = "256"

 

/Etc/sysctl. conf

 

Net. inet. IP. sourceroute = 0
Net. inet. IP. accept_sourceroute = 0
Net. inet. tcp. drop_synfin = 1
Kernel. maxvnodes = 100000
Kern. maxprocperuid = 867
Kern. maxfiles = 65536
Kern. argmax = 262144
Kern. securelevel =-1
Kern. maxfilesperproc = 1735
Kern. IPC. maxsockbuf = 262144
Kern. IPC. somaxconn = 8192
Kern. IPC. shmmax = 33554432
Kern. IPC. Shmall = 8192
Kern. IPC. shm_use_phys = 0
Kern. IPC. shm_allow_removed = 0
Kern. coredump = 1
Kern. corefile = % N. Core
VM. swap_idle_enabled = 0
VM. swap_idle_threshold1 = 2
VM. swap_idle_threshold2 = 10
VFS. UFS. dirhash_maxmem = 2097152
VFS. vmiodirenable = 1
VFS. hirunningspaces = 1048576
VFS. write_behind = 1
Net. Local. Stream. sendspace = 65536
Net. inet. IP. portrange. lowfirst = 1023
Net. inet. IP. portrange. lowlast = 600
Net. inet. IP. portrange. First = 49152
Net. inet. IP. portrange. Last = 65535
Net. inet. IP. portrange. hifirst = 49152
Net. inet. IP. portrange. hilast = 65535
Net. inet. IP. Redirect = 1
Net. inet. IP. rtexpire = 3600
Net. inet. IP. rtminexpire = 10
Net. inet. IP. intr_queue_maxlen = 50
Net. inet. IP. intr_queue_drops = 0
Net. inet. IP. random_id = 0
Net. inet. ICMP. icmplim = 200
Net. inet. ICMP. icmplim_output = 1
Net. inet. ICMP. drop_redirect = 0
Net. inet. ICMP. log_redirect = 0
Net. inet. tcp. mssdflt = 512
Net. inet. tcp. minmss = 216
Net. inet. tcp. keepidle = 7200000
Net. inet. tcp. sendspace = 32768
Net. inet. tcp. recvspace = 65536
Net. inet. UDP. maxdgram = 9216
Net. inet. UDP. recvspace = 42080
Net. inet. tcp. log_in_vain = 0
Net. inet. tcp. blackhole = 2
Net. inet. tcp. delayed_ack = 1
Net. inet. tcp. inflight. DEBUG = 0
Net. inet. tcp. inflight. rttthresh = 10
Net. inet. tcp. inflight. min = 6144
Net. inet. tcp. inflight. max = 1073725440
Net. inet. tcp. inflight. Stab = 20
Net. inet. tcp. MSL = 30000
Net. inet. tcp. always_keepalive = 1
Net. inet. UDP. log_in_vain = 0
Net. inet. UDP. blackhole = 1
Net. inet. Raw. maxdgram = 8192
Net. inet. Raw. recvspace = 8192
Net. Link. Ether. inet. max_age = 1200
Net. inet6.ip6. Redirect = 1
Net. ISR. Direct = 0
HW. ata. WC = 1
Security. BSD. see_other_uids = 1
Security. BSD. see_other_gids = 1