<?xml version="1.0"?> <opnsense> <trigger_initial_wizard/> <version>11.2</version> <theme>opnsense</theme> <sysctl> <item> <descr><![CDATA[Disable the pf ftp proxy handler.]]></descr> <tunable>debug.pfftpproxy</tunable> <value>default</value> </item> <item> <descr><![CDATA[Increase UFS read-ahead speeds to match current state of hard drives and NCQ. More information here: http://ivoras.sharanet.org/blog/tree/2010-11-19.ufs-read-ahead.html]]></descr> <tunable>vfs.read_max</tunable> <value>default</value> </item> <item> <descr><![CDATA[Set the ephemeral port range to be lower.]]></descr> <tunable>net.inet.ip.portrange.first</tunable> <value>default</value> </item> <item> <descr><![CDATA[Drop packets to closed TCP ports without returning a RST]]></descr> <tunable>net.inet.tcp.blackhole</tunable> <value>default</value> </item> <item> <descr><![CDATA[Do not send ICMP port unreachable messages for closed UDP ports]]></descr> <tunable>net.inet.udp.blackhole</tunable> <value>default</value> </item> <item> <descr><![CDATA[Randomize the ID field in IP packets (default is 0: sequential IP IDs)]]></descr> <tunable>net.inet.ip.random_id</tunable> <value>default</value> </item> <item> <descr><![CDATA[ Source routing is another way for an attacker to try to reach non-routable addresses behind your box. It can also be used to probe for information about your internal networks. These functions come enabled as part of the standard FreeBSD core system. ]]></descr> <tunable>net.inet.ip.sourceroute</tunable> <value>default</value> </item> <item> <descr><![CDATA[ Source routing is another way for an attacker to try to reach non-routable addresses behind your box. It can also be used to probe for information about your internal networks. These functions come enabled as part of the standard FreeBSD core system. ]]></descr> <tunable>net.inet.ip.accept_sourceroute</tunable> <value>default</value> </item> <item> <descr><![CDATA[ Redirect attacks are the purposeful mass-issuing of ICMP type 5 packets. In a normal network, redirects to the end stations should not be required. This option enables the NIC to drop all inbound ICMP redirect packets without returning a response. ]]></descr> <tunable>net.inet.icmp.drop_redirect</tunable> <value>default</value> </item> <item> <descr><![CDATA[ This option turns off the logging of redirect packets because there is no limit and this could fill up your logs consuming your whole hard drive. ]]></descr> <tunable>net.inet.icmp.log_redirect</tunable> <value>default</value> </item> <item> <descr><![CDATA[Drop SYN-FIN packets (breaks RFC1379, but nobody uses it anyway)]]></descr> <tunable>net.inet.tcp.drop_synfin</tunable> <value>default</value> </item> <item> <descr><![CDATA[Enable sending IPv4 redirects]]></descr> <tunable>net.inet.ip.redirect</tunable> <value>default</value> </item> <item> <descr><![CDATA[Enable sending IPv6 redirects]]></descr> <tunable>net.inet6.ip6.redirect</tunable> <value>default</value> </item> <item> <descr><![CDATA[Enable privacy settings for IPv6 (RFC 4941)]]></descr> <tunable>net.inet6.ip6.use_tempaddr</tunable> <value>default</value> </item> <item> <descr><![CDATA[Prefer privacy addresses and use them over the normal addresses]]></descr> <tunable>net.inet6.ip6.prefer_tempaddr</tunable> <value>default</value> </item> <item> <descr><![CDATA[Generate SYN cookies for outbound SYN-ACK packets]]></descr> <tunable>net.inet.tcp.syncookies</tunable> <value>default</value> </item> <item> <descr><![CDATA[Maximum incoming/outgoing TCP datagram size (receive)]]></descr> <tunable>net.inet.tcp.recvspace</tunable> <value>default</value> </item> <item> <descr><![CDATA[Maximum incoming/outgoing TCP datagram size (send)]]></descr> <tunable>net.inet.tcp.sendspace</tunable> <value>default</value> </item> <item> <descr><![CDATA[IP Fastforwarding]]></descr> <tunable>net.inet.ip.fastforwarding</tunable> <value>default</value> </item> <item> <descr><![CDATA[Do not delay ACK to try and piggyback it onto a data packet]]></descr> <tunable>net.inet.tcp.delayed_ack</tunable> <value>default</value> </item> <item> <descr><![CDATA[Maximum outgoing UDP datagram size]]></descr> <tunable>net.inet.udp.maxdgram</tunable> <value>default</value> </item> <item> <descr><![CDATA[Handling of non-IP packets which are not passed to pfil (see if_bridge(4))]]></descr> <tunable>net.link.bridge.pfil_onlyip</tunable> <value>default</value> </item> <item> <descr><![CDATA[Set to 0 to disable filtering on the incoming and outgoing member interfaces.]]></descr> <tunable>net.link.bridge.pfil_member</tunable> <value>default</value> </item> <item> <descr><![CDATA[Set to 1 to enable filtering on the bridge interface]]></descr> <tunable>net.link.bridge.pfil_bridge</tunable> <value>default</value> </item> <item> <descr><![CDATA[Allow unprivileged access to tap(4) device nodes]]></descr> <tunable>net.link.tap.user_open</tunable> <value>default</value> </item> <item> <descr><![CDATA[Randomize PID's (see src/sys/kern/kern_fork.c: sysctl_kern_randompid())]]></descr> <tunable>kern.randompid</tunable> <value>default</value> </item> <item> <descr><![CDATA[Maximum size of the IP input queue]]></descr> <tunable>net.inet.ip.intr_queue_maxlen</tunable> <value>default</value> </item> <item> <descr><![CDATA[Disable CTRL+ALT+Delete reboot from keyboard.]]></descr> <tunable>hw.syscons.kbd_reboot</tunable> <value>default</value> </item> <item> <descr><![CDATA[Enable TCP extended debugging]]></descr> <tunable>net.inet.tcp.log_debug</tunable> <value>default</value> </item> <item> <descr><![CDATA[Set ICMP Limits]]></descr> <tunable>net.inet.icmp.icmplim</tunable> <value>default</value> </item> <item> <descr><![CDATA[TCP Offload Engine]]></descr> <tunable>net.inet.tcp.tso</tunable> <value>default</value> </item> <item> <descr><![CDATA[UDP Checksums]]></descr> <tunable>net.inet.udp.checksum</tunable> <value>default</value> </item> <item> <descr><![CDATA[Maximum socket buffer size]]></descr> <tunable>kern.ipc.maxsockbuf</tunable> <value>default</value> </item> </sysctl> <system> <optimization>normal</optimization> <hostname>OPNsense</hostname> <domain>localdomain</domain> <dnsallowoverride/> <group> <name>admins</name> <description><![CDATA[System Administrators]]></description> <scope>system</scope> <gid>1999</gid> <member>0</member> <priv>page-all</priv> </group> <user> <name>root</name> <descr><![CDATA[System Administrator]]></descr> <scope>system</scope> <groupname>admins</groupname> <password>$6$$Y8Et6wWDdXO2tJZRabvSfQvG2Lc8bAS6D9COIsMXEJ2KjA27wqDuAyd/CdazBQc3H3xQX.JXMKxJeRz2OqTkl.</password> <uid>0</uid> <priv>user-shell-access</priv> </user> <nextuid>2000</nextuid> <nextgid>2000</nextgid> <timezone>Europe/Amsterdam</timezone> <time-update-interval>300</time-update-interval> <timeservers>0.nl.pool.ntp.org</timeservers> <webgui> <protocol>https</protocol> </webgui> <disablenatreflection>yes</disablenatreflection> <disableconsolemenu/> <disablesegmentationoffloading/> <disablelargereceiveoffloading/> <ipv6allow/> <powerd_ac_mode>hadp</powerd_ac_mode> <powerd_battery_mode>hadp</powerd_battery_mode> <powerd_normal_mode>hadp</powerd_normal_mode> <bogons> <interval>monthly</interval> </bogons> <kill_states/> <backupcount>60</backupcount> </system> <interfaces> <wan> <enable/> <if>mismatch1</if> <mtu/> <ipaddr>dhcp</ipaddr> <ipaddrv6>dhcp6</ipaddrv6> <subnet/> <gateway/> <blockpriv/> <blockbogons/> <dhcphostname/> <media/> <mediaopt/> <dhcp6-duid/> <dhcp6-ia-pd-len>0</dhcp6-ia-pd-len> </wan> <lan> <enable/> <if>mismatch0</if> <ipaddr>192.168.1.1</ipaddr> <subnet>24</subnet> <ipaddrv6>track6</ipaddrv6> <subnetv6>64</subnetv6> <media/> <mediaopt/> <track6-interface>wan</track6-interface> <track6-prefix-id>0</track6-prefix-id> </lan> </interfaces> <dhcpd> <lan> <enable/> <range> <from>192.168.1.100</from> <to>192.168.1.199</to> </range> </lan> </dhcpd> <dnsmasq> <enable/> </dnsmasq> <snmpd> <syslocation/> <syscontact/> <rocommunity>public</rocommunity> </snmpd> <syslog> <reverse/> </syslog> <nat> <outbound> <mode>automatic</mode> </outbound> </nat> <filter> <rule> <type>pass</type> <ipprotocol>inet</ipprotocol> <descr><![CDATA[Default allow LAN to any rule]]></descr> <interface>lan</interface> <source> <network>lan</network> </source> <destination> <any/> </destination> </rule> <rule> <type>pass</type> <ipprotocol>inet6</ipprotocol> <descr><![CDATA[Default allow LAN IPv6 to any rule]]></descr> <interface>lan</interface> <source> <network>lan</network> </source> <destination> <any/> </destination> </rule> </filter> <cron> <item> <minute>1,31</minute> <hour>0-5</hour> <mday>*</mday> <month>*</month> <wday>*</wday> <who>root</who> <command>adjkerntz -a</command> </item> <item> <minute>1</minute> <hour>3</hour> <mday>1</mday> <month>*</month> <wday>*</wday> <who>root</who> <command>/usr/local/etc/rc.update_bogons</command> </item> <item> <minute>*/60</minute> <hour>*</hour> <mday>*</mday> <month>*</month> <wday>*</wday> <who>root</who> <command>/usr/local/sbin/expiretable -v -t 3600 sshlockout</command> </item> <item> <minute>1</minute> <hour>1</hour> <mday>*</mday> <month>*</month> <wday>*</wday> <who>root</who> <command>/usr/local/etc/rc.dyndns.update</command> </item> <item> <minute>*/60</minute> <hour>*</hour> <mday>*</mday> <month>*</month> <wday>*</wday> <who>root</who> <command>/usr/local/sbin/expiretable -v -t 3600 virusprot</command> </item> <item> <minute>30</minute> <hour>12</hour> <mday>*</mday> <month>*</month> <wday>*</wday> <who>root</who> <command>/usr/local/etc/rc.update_urltables</command> </item> </cron> <rrd> <enable/> </rrd> <load_balancer> <monitor_type> <name>ICMP</name> <type>icmp</type> <descr><![CDATA[ICMP]]></descr> <options/> </monitor_type> <monitor_type> <name>TCP</name> <type>tcp</type> <descr><![CDATA[Generic TCP]]></descr> <options/> </monitor_type> <monitor_type> <name>HTTP</name> <type>http</type> <descr><![CDATA[Generic HTTP]]></descr> <options> <path>/</path> <host/> <code>200</code> </options> </monitor_type> <monitor_type> <name>HTTPS</name> <type>https</type> <descr><![CDATA[Generic HTTPS]]></descr> <options> <path>/</path> <host/> <code>200</code> </options> </monitor_type> <monitor_type> <name>SMTP</name> <type>send</type> <descr><![CDATA[Generic SMTP]]></descr> <options> <send/> <expect>220 *</expect> </options> </monitor_type> </load_balancer> <widgets> <sequence>system_information-container:col1:show,gateways-container:col2:show,interface_list-container:col2:show,services_status-container:col2:show</sequence> </widgets> </opnsense>