# $OpenBSD: sysctl.conf,v 1.57 2014/05/22 14:11:41 tedu Exp $ # # This file contains a list of sysctl options the user wants set at # boot time. See sysctl(3) and sysctl(8) for more information on # the many available variables. # #net.inet.ip.forwarding=1 # 1=Permit forwarding (routing) of IPv4 packets #net.inet.ip.mforwarding=1 # 1=Permit forwarding (routing) of IPv4 multicast packets #net.inet.ip.multipath=1 # 1=Enable IP multipath routing #net.inet.icmp.rediraccept=1 # 1=Accept ICMP redirects #net.inet6.icmp6.rediraccept=1 # 1=Accept IPv6 ICMP redirects (for hosts) #net.inet6.ip6.forwarding=1 # 1=Permit forwarding (routing) of IPv6 packets #net.inet6.ip6.mforwarding=1 # 1=Permit forwarding (routing) of IPv6 multicast packets #net.inet6.ip6.multipath=1 # 1=Enable IPv6 multipath routing #net.inet6.ip6.accept_rtadv=1 # 1=Permit IPv6 autoconf (forwarding must be 0) #net.inet.tcp.always_keepalive=1 # 1=Keepalives for all connections (e.g. hotel/airport NAT) #net.inet.tcp.keepidle=100 # 100=send TCP keepalives every 50 seconds #net.inet.esp.enable=0 # 0=Disable the ESP IPsec protocol #net.inet.ah.enable=0 # 0=Disable the AH IPsec protocol #net.inet.esp.udpencap=0 # 0=Disable ESP-in-UDP encapsulation #net.inet.ipcomp.enable=1 # 1=Enable the IPCOMP protocol #net.inet.etherip.allow=1 # 1=Enable the Ethernet-over-IP protocol #net.inet.tcp.ecn=1 # 1=Enable the TCP ECN extension #net.inet.carp.preempt=1 # 1=Enable carp(4) preemption #net.inet.carp.log=3 # log level of carp(4) info, default 2 #net.pipex.enable=1 # 1=Enable pipex(4) for npppd(8) #ddb.panic=0 # 0=Do not drop into ddb on a kernel panic #ddb.console=1 # 1=Permit entry of ddb from the console #fs.posix.setuid=0 # 0=Traditional BSD chown() semantics #vm.swapencrypt.enable=0 # 0=Do not encrypt pages that go to swap #vfs.nfs.iothreads=4 # Number of nfsio kernel threads #net.inet.ip.mtudisc=0 # 0=Disable tcp mtu discovery #kern.usercrypto=1 # 1=Enable userland use of /dev/crypto #kern.userasymcrypto=1 # 1=Permit userland to do asymmetric crypto #kern.splassert=2 # 2=Enable with verbose error messages #kern.nosuidcoredump=3 # 3=Put suid coredumps in /var/crash/progname #kern.watchdog.period=32 # >0=Enable hardware watchdog(4) timer if available #kern.watchdog.auto=0 # 0=Disable automatic watchdog(4) retriggering #hw.allowpowerdown=0 # 0=Disable power button shutdown