## increase TCP max buffer size setable using setsockopt()
net.core.rmem_max =16777216
net.core.wmem_max =16777216
## increase Linux autotuning TCP buffer limits
## min, default, and max number of bytes to use
## set max to at least 4MB, or higher if you use very high BDP paths
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
## don't cache ssthresh from previous connection
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
## recommended to increase this for 1000 BT or higher
net.core.netdev_max_backlog = 2500
## for 10 GigE, use this, uncomment below
## net.core.netdev_max_backlog = 30000
## Turn off timestamps if you're on a gigabit or very busy network
## Having it off is one less thing the IP stack needs to work on
## net.ipv4.tcp_timestamps = 0
## disable tcp selective acknowledgements.
net.ipv4.tcp_sack =0
##enable window scaling
net.ipv4.conf.all.rp_filter=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_timestamps=1
net.ipv4.conf.all.log_martians=1
net.ipv4.icmp_echo_ignore_all=0
net.ipv4.icmp_echo_ignore_broadcasts=0
net.ipv4.icmp_ignore_bogus_error_responses=1
####################
# Added by Anthony #
####################

# Controls IP packet forwarding
net.ipv4.ip_forward =0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1

# Disables IP source routing
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq =1

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1

# Increase maximum amount of memory allocated to shm
# Only uncomment if needed!
# kernel.shmmax = 67108864
# Disable ICMP Redirect Acceptance
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.all.accept_redirects = 0

# Enable Log Spoofed Packets, Source Routed Packets, Redirect Packets
net.ipv4.conf.default.log_martians = 1
net.ipv4.conf.all.log_martians = 1

# Decrease the time default value for tcp_fin_timeout connection
net.ipv4.tcp_fin_timeout =25

# Decrease the time default value for tcp_keepalive_time connection
net.ipv4.tcp_keepalive_time =1200

# Turn on the tcp_window_scaling
net.ipv4.tcp_window_scaling = 1

# Turn on the tcp_sack
net.ipv4.tcp_sack = 1

# tcp_fack should be on because of sack
net.ipv4.tcp_fack = 1

# Turn on the tcp_timestamps
net.ipv4.tcp_timestamps = 1

# Enable TCP SYN Cookie Protection
net.ipv4.tcp_syncookies =1

# Enable ignoring broadcasts request
net.ipv4.icmp_echo_ignore_broadcasts = 1

# Enable bad error message Protection
net.ipv4.icmp_ignore_bogus_error_responses = 1

# Make more local ports available
# net.ipv4.ip_local_port_range = 1024 65000
# Set TCP Re-Ordering value in kernel to '5'

net.ipv4.tcp_reordering = 5

# Lower syn retry rates
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries =3

# Set Max SYN Backlog to '2048'
net.ipv4.tcp_max_syn_backlog =2048

# Various Settings
net.core.netdev_max_backlog = 1024

# Increase the maximum number of skb-heads to be cached
#net.core.hot_list_length = 256

# Increase the tcp-time-wait buckets pool size
net.ipv4.tcp_max_tw_buckets = 360000
#ab wann speicher als dreckig betrachtet wird
vm.dirty_ratio=10
vm.dirty_background_ratio=5
#vfs cache pressure
vm.vfs_cache_pressure=50
#gibt den grad an wann ausgelagert wird
vm.swappiness=5
fs.file-max=85000

net.core.rmem_default = 114688
net.core.wmem_default = 114688
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.tcp_retries1 = 3
net.ipv4.tcp_retries2 = 15
net.ipv4.tcp_retrans_collapse = 1
net.ipv4.ip_default_ttl = 64
net.ipv4.ipfrag_time = 30
net.ipv4.ip_no_pmtu_disc = 0
net.unix.max_dgram_qlen = 10
net.token-ring.rif_timeout = 600000
vm.overcommit_memory = 0
vm.page-cluster = 3
kernel.ctrl-alt-del = 0
kernel.panic = 0
kernel.acct = 4 2 30
kernel.printk = 3
kernel.shmall = 2097152
kernel.shmmax = 33554432
dev.raid.speed_limit_min = 1000
dev.raid.speed_limit_max = 200000