# 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 # Log packets originating from Mars net.ipv4.conf.all.log_martians = 1