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# Kernel sysctl configuration file for Red Hat Linux

#

# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and

# sysctl.conf(5) for more details.

# Controls IP packet forwarding

net.ipv4.ip_forward = 1

# Controls source route verification

net.ipv4.conf.default.rp_filter = 1

# Controls the System Request debugging functionality of the kernel

kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.

# Useful for debugging multi-threaded applications.

kernel.core_uses_pid = 1

# TF - extra goodies

# Enable dynamic-ip address hacking

net.ipv4.ip_dynaddr = 1

# Use SYN cookies

net.ipv4.tcp_syncookies = 1

# Do selective acknowledgement

net.ipv4.tcp_sack = 1

# Use timestamping

net.ipv4.tcp_timestamps = 1

# Do TCP window scaling

net.ipv4.tcp_window_scaling = 1

# Ignore ICMP broadcast packets

net.ipv4.icmp_echo_ignore_broadcasts = 1

# Disable accepting of network route redirects

net.ipv4.conf.all.accept_redirects = 0

# Disable handling of source-routed packets

net.ipv4.conf.all.accept_source_route = 0

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# Log packets originating from Mars

net.ipv4.conf.all.log_martians = 1

from http://www.stanford.edu/~fenn/linux/sysctl.conf

.