826 lines
18 KiB
Bash
826 lines
18 KiB
Bash
#!/usr/bin/env bash
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## ----------------------------------------------------------------
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## --- Main Configurations Ipv4 Firewall Script ipt-firewall-server
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## ----------------------------------------------------------------
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# -------------
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# --- Prevent bridged traffic getting pushed through the host's iptables rules
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# -------------
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# - Prevent bridged traffic getting pushed through the
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# - host's iptables rules
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# -
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# - Note: Maybe youe have also to activate forwarding
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# -
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# - Set: kernel_forward_between_interfaces=true
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# -
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do_not_firewall_bridged_traffic=false
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# -------------
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# --- Do not firewall traffic from and to LX Gust Systems
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# -------------
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# - Traffic to hosted LX containers are not firewalled here.
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# -
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do_not_firewall_lx_guest_systems=false
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# -------------
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# --- Drop ICMP
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# -------------
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drop_icmp=false
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# -------------
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# --- Drop Mikrotik RouterOS Neighbor Discovery Protocol (MNDP) Traffic
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# --- Drop Tinc VPN Traffic
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# -------------
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# Tinc VPN Traffic / Mikrotik RouterOS Neighbor Discovery Protocol (MNDP) Traffic
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#
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# Der UDP-Port 5678 wird üblicherweise von Tinc VPN verwendet. Tinc ist ein
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# Open-Source-VPN-Softwarepaket, das für die Erstellung von Virtual Private
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# Networks (VPNs) eingesetzt wird, bei denen Netzwerke über das Internet oder
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# andere unsichere Netzwerke miteinander verbunden werden. Es nutzt diesen
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# Port, um Verbindungen zwischen den Knoten (Nodes) des VPNs zu ermöglichen.
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#
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# Der UDP-Port 5678 wird auch von MikroTik RouterOS Neighbor Discovery Protocol
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# (NDP) verwendet. Dieses Protokoll wird von MikroTik-Routern eingesetzt, um
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# benachbarte Geräte im Netzwerk zu entdecken und automatisch zu erkennen. Es
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# hilft dabei, die Kommunikation zwischen MikroTik-Geräten zu erleichtern, ohne
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# dass eine manuelle IP-Konfiguration erforderlich ist.
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#
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# MikroTik Neighbor Discovery über UDP-Port 5678 ist speziell darauf ausgelegt,
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# Router und Geräte im selben lokalen Netzwerk (LAN) zu identifizieren und
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# Informationen über benachbarte MikroTik-Geräte auszutauschen. Dies ist besonders
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# nützlich für die Verwaltung und Konfiguration von MikroTik-Geräten im Netzwerk.
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#
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# Zusammengefasst:
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# Der UDP-Port 5678 wird sowohl für MikroTik RouterOS Neighbor Discovery als auch
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# für Tinc VPN verwendet, je nachdem, welche Technologie zum Einsatz kommt.
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#
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drop_mndp=true
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# -------------
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# --- Drop Multicast DNS Traffic
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# -------------
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# Multicast Domain Name System (mDNS) protocol
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#
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# UDP Port 5353/
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#
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# Der UDP-Port 5353 wird hauptsächlich für Multicast DNS (mDNS) verwendet.
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# mDNS ist ein Protokoll, das es Geräten ermöglicht, sich im lokalen Netzwerk
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# selbst zu identifizieren und ohne zentrale DNS-Server Namen zu registrieren
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# und aufzulösen. Dies wird häufig in lokalen Netzwerken eingesetzt, z.B. bei
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# Geräten, die mit Apple's Bonjour oder Avahi (einer Open-Source-Implementierung
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# von mDNS) kommunizieren.
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#
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# UDP port 5353 is mainly used for multicast DNS (mDNS). mDNS is a protocol that
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# allows devices to identify themselves on the local network and register and
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# resolve names without central DNS servers. This is often used in local
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# networks, e.g. for devices that communicate using Apple's Bonjour or Avahi
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# (an open-source implementation of mDNS).
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#
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drop_mdns=true
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# -------------
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# --- Allow all outgoing traffic
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# -------------
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# - allow_all_outgoing_traffic
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# -
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# - Posiible values are 'true' and 'false'
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# -
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allow_all_outgoing_traffic=false
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# -------------
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# --- Interfaces completly blocked
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# -------------
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# - Interfaces to block (note: they will all be blocked)
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# -
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# - Example: eth1 is used for DSL Line, that becomes an extra
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# - interface (maybe ppp0). A further use of eth1 (which would
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# - be possible) is not configured at time, so you can block it.
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# - blocked_ifs="eth1"
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# -
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blocked_ifs=""
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# -------------
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# --- Interfaces not firewalled
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# -------------
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# - Note:
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# - Can be (for example) an interface, whose (complete) traffic is
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# - protected by a firewall on an other system in the local area
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# -
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unprotected_ifs=""
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# -------------
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# ---- Allow Forwarding (private) IPs / IP-Ranges
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# -------------
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# - Maybe useful in case of virtual hosts with private addresses or
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# - if using a vpn network to forward into private areas.
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# -
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# - Note: this rules takes affect before rules to protect against
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# - unwanted packages e.g. blocking private addresses on
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# - externel interfaces.
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# -
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# - Note: you can specify networks using CIDR notation
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# - like "192.168.2.0/24"
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# -
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forward_private_ips=""
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# -------------
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# ---- Restrict local Servive to given (extern) IP-Address/Network
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# -------------
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# - restrict_local_service_to_net
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# -
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# - restrict_local_service_to_net="ext-netr,local-address,port,protocol"
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# -
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# - Note:
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# - =====
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# - - Only 'tcp' and 'udp' are allowed valuse for protocol.
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# - - Traffic recieved on natted interfaces will be ommitted!
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# -
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# - Use this parameter to (only) give some extern netwoks access to special local
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# - services.
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# -
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# - Example:
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# - allow access from 2003:45:4612:3a00::/56 to tcp service at 2a01:30:0:13:211:84ff:feb7:7f9c on port 1036
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# - allow access from 2a01:30:1fff:fd00:: to https service at 2a01:30:0:13:211:84ff:feb7:7f9c
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# -
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# - restrict_local_service_to_net="2003:45:4612:3a00::/56,2a01:30:0:13:211:84ff:feb7:7f9c,1036,tcp
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# - 2a01:30:1fff:fd00::/64,2a01:30:0:13:211:84ff:feb7:7f9c,443,tcp"
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# -
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# - Blank separated list
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# -
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restrict_local_service_to_net=""
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# -------------
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# ---- Restrict local Network to given extern IP-Address/Network
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# -------------
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# - restrict_local_net_to_net
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# -
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# - restrict_local_net_to_net="<src-ext-net>,<dst-local-net> [<src-ext-net>,<dst-local-net>] [..]"
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# -
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# - All traffic from the given first network to the given second network is allowed
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# -
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# - Note:
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# - =====
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# - - Traffic recieved on natted interfaces will be ommitted!
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# - - If you want allow both directions, you have to make two entries - one for evry directions.
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# -
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# - Example:
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# - allow_ext_net_to_local_net="2003:45:4612:3a00::/56,2a01:30:0:13:211:84ff:feb7:7f9c/128
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# - 2a01:30:1fff:fd00::/64,2a01:30:0:13:211:84ff:feb7:7f9c/128"
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# -
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# - Blank separated list
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# -
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restrict_local_net_to_net=""
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# -------------
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# ---- Allow extern Service
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# -------------
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# - allow_ext_service
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# -
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# - allow_ext_service="<ext-ip>,<ext_port>,<protocol> [<ext-ip>,<ext_port>,<protocol> [ ..
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# -
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# - Allow all traffic to the given extern Service. Only protcols 'tcp' and 'udp'
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# - are allowed
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# -
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# - Example:
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# - - allow_ext_service="
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# - 2a01:4f8:221:3b4e::247,8443,tcp
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# - 2a01:30:0:13:211:84ff:feb7:7f9c,8443,tcp
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# - "
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# - - allow_ext_service="
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# - ::/0,8443,tcp
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# - ::/0,8080,tcp
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# - "
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# -
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# - Note:
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# - =====
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# - To allow traffic on a certain port to all extern networks, set extern network to '::/0'
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# -
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# - Blank separated list
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# -
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allow_ext_service=""
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# -------------
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# ---- Allow extern IP-Address/Network
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# -------------
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# - allow_ext_net
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# -
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# - allow_ext_net="<ext-ip> [<ext-ip> [ ..!
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# -
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# - Allow all traffic to the given extern network/ip-address.
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# -
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# - Example:
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# - - allow_ext_net="2a01:4f8:221:3b4e::247 2a01:30:0:13:211:84ff:feb7:7f9c"
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# - - allow_ext_net="::/0"
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# -
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# - Note:
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# - =====
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# - To allow traffic to all extern networks, set extern network to '::/0'
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# -
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# - Blank separated list
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# -
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allow_ext_net=""
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# -------------
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# ---- Allow (non-standard) local Services
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# -------------
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# - allow_local_service
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# -
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# - allow_local_service="<port>,<protocol> [<port>,<protocol> [.."
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# -
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# - Allow all traffic to given local service
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# -
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# - Example:
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# - allow_local_service="8443,tcp 8080,tcp"
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# -
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# - Blank separated list
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# -
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allow_local_service=""
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# -------------
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# ---- Allow local Services from given (extern) network
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# -------------
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# - allow_local_service_from_networks
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# -
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# - allow_local_service_from_networks="<ext-net,local-port,protocol> [<ext-net,local-port>,<protocol> [.."
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# -
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# - Allow all traffic to given local service from given (extern) network
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# -
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# - Example:
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# - allow_local_service="2001:678:a40:3000::/64,8443,tcp 2001:678:a40:3000::/64,8080,tcp"
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# -
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# - Blank separated list
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# -
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allow_local_service_from_networks=""
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# -------------
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# --- Services local Network
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# -------------
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# - VPN Server
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# -
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vpn_server_ips=""
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forward_vpn_server_ips=""
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# - VPN Port(s) used by local Services
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# -
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# - blank separated list
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# -
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vpn_ports="$standard_vpn_port"
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# - WireGuard Service
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# -
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wireguard_server_ips=""
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forward_wireguard_server_ips=""
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# - Local WireGuard Ports
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# -
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# - Blank separated list
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# -
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wireguard_server_ports="$standard_wireguard_port"
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# - Remote WireGuard Ports
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# -
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wireguard_out_ports="$standard_wireguard_port"
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# local NTP Server
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#
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local_ntp_service=false
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# NPT Port used by local service
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#
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ntp_port="$standard_ntp_port"
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# Network allowed for NTP requests
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#
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# Note: if not set no port will be open!
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#
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# Example:
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# ntp_allowed_net="2001:678:a40:3000::/64"
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#
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ntp_allowed_net=""
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# DHCP Server
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#
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# Comma seperated list of Interface supporting DHCP services
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#
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dhcp_server_ifs=""
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# DHCP Client
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#
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# Comma seperated list of Interface, which are dhcp clients
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#
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dhcp_client_ifs=""
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# - DNS Server
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# -
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# - Note:
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# - leave empty if you support only DNS Resolver Service
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# -
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dns_server_ips=""
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forward_dns_server_ips=""
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# - local DNS Resolver
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# -
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local_resolver_service=false
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# Resolover Port used by local service
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# -
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resolver_port="$standard_dns_port"
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# - Network allowed for DNS requests
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# -
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# - Note: if not set no port will be open!
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# -
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# - Example:
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# - resolver_allowed_net="2001:678:a40:3000::/64 2001:678:a40:4000::/64"
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# -
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# - # Open DNS Resolver
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# - resolver_allowed_net="::/0"
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# -
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resolver_allowed_networks=""
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# - SSH Server
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# -
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ssh_server_ips=""
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forward_ssh_server_ips=""
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# - SSH Port(s) used by local Services
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# -
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# - blank separated list
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# -
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ssh_ports="$standard_ssh_port"
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# - HTTP(S) Server
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# -
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http_server_ips=""
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forward_http_server_ips=""
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# - HTTP(S) Ports used by local Services
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# -
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# - comma separated list
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# -
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http_ports="$standard_http_ports"
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# - LOG CGI script Traffic out
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# -
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log_cgi_traffic_out=false
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# - cgi_script_users
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# -
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# - List of CGI script users (suexec user, php-fpm user. ...)
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# -
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# - Blank separated list
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# -
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cgi_script_users=""
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# - Mattermost (MM) Service
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# -
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mm_server_ips=""
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forward_mm_server_ips=""
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# - UDP Ports IN and OUT used by MM Servive
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# -
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mm_udp_ports_in="$stansard_mattermost_udp_ports_in"
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mm_udp_ports_out="$stansard_mattermost_udp_ports_out"
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# - Mail SMTP Server
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# -
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smtpd_ips=""
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forward_smtpd_ips=""
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# Additional Ports on which SMTP Service should lsiten
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#
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# blank separated list of ports
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#
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smtpd_additional_listen_ports=""
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# Additional Ports for outgoing smtp traffic
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#
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# blank separated list of ports
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#
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smtpd_additional_outgoung_ports=""
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# - Mail Services (smtps/pop(s)/imap(s)
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# -
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mail_server_ips=""
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forward_mail_server_ips=""
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# - Client Ports used by local Mail Services
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# -
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# - comma separated list
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# -
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mail_user_ports="$standard_mailuser_ports"
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# - Mail Client (smtps/pop(s)/imap(s)
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# -
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mail_client_ips=""
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forward_mail_client_ips=""
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# - (local) Dovecot auth service
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# -
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dovecot_auth_service=false
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# - Port listen for dovecot auth requests
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# -
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dovecot_auth_port="$dovecot_external_auth_port"
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# - Client Network(s) allowed to connect to dovecot's auth service
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# -
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# - Example:
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# - dovecot_auth_allowed_networks="2001:678:a40:3000::/64 2a01:30:0:13:2f7:50ff:fed2:cef7"
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# -
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dovecot_auth_allowed_networks=""
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# - FTP Server
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# -
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ftp_server_ips=""
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forward_ftp_server_ips=""
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# - FTP passive port range use by local ftp service(s)
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# -
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# - example: ftp_passive_port_range="50000:50400"
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# -
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ftp_passive_port_range="50000:50400"
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# - XMPP Service (Jabber - Prosody)
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# -
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xmpp_server_ips=""
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forward_xmpp_server_ips=""
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# - Ports used by XMpp (Prosody) service
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# -
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# - 5222 eingehend, für Client-Verbindungen unverschlüsselt oder TLS-verschlüsselt
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# - 5223 eingehend, für SSL-verschlüsselte Clientverbindungen (veraltet)
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# - 5269 ein- und ausgehend, für Verbindungen zu anderen Servern
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# -
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# - WebSocket (support is provided by mod_websocket)
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# - 5280 eingehend, für Client-Verbindungen über HTTP-Polling (nützlich für Webapplikationen)
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# -
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xmmp_tcp_in_ports="5222 5223 5269"
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xmmp_tcp_out_ports="5269"
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# - XMPP Remote Dovecote Out Service
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# -
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# - Example:
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# - - xmmp_remote_out_services="
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# - 2a01:4f8:221:3b4e::247,44444
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# - 2a01:30:0:13:2f7:50ff:fed2:cef7,44444
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# - "
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# -
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xmmp_remote_out_services=""
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# - Mumble Server
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# -
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mumble_server_ips=""
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forward_mumble_server_ips=""
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# - Ports used by local Mumble Services
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# -
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# - comma separated list
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# -
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mumble_ports="$standard_mumble_port"
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# - Jitsi Video Conferencing Server
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# -
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jitsi_server_ips=""
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forward_jitsi_server_ips=""
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# - Jitsi (incomming) Ports
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# -
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# - comma separated list of ports/port ranges)
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# -
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jitsi_tcp_ports="$standard_jitsi_tcp_ports"
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jitsi_udp_port_range="$standard_jitsi_udp_port_range"
|
|
|
|
# - Jitsi (outgoing) Ports (STUN Services)
|
|
# -
|
|
jitsi_tcp_ports_out="$standard_turn_service_ports,4443,4444,4445,4446"
|
|
jitsi_udp_ports_out="$standard_http_ports,$standard_turn_service_ports,4443,4444,4445,4446"
|
|
|
|
# - Jitsi Dovecot Authentication
|
|
# -
|
|
jitsi_dovecot_auth=false
|
|
jitsi_dovecot_host=""
|
|
jitsi_dovecot_port="$default_jitsi_dovecout_auth_port"
|
|
|
|
# - Jibri extern Client Recording / Streamin
|
|
# -
|
|
jitsi_jibri_remote_auth=false
|
|
# - Remote Jibri servers
|
|
# -
|
|
# - colon separated list of ipv6 addresses
|
|
# -
|
|
jitsi_jibri_remote_ips=""
|
|
jitsi_jibri_remote_auth_port="$default_jibri_out_port"
|
|
|
|
|
|
# - Jibri Recording / Streaming Service
|
|
# -
|
|
# - colon separated list of ipv6 addresses
|
|
# -
|
|
jibri_server_ips=""
|
|
# - colon separated list of ipv6 addresses
|
|
# -
|
|
forward_jibri_server_ips=""
|
|
jibri_remote_jitsi_server=""
|
|
jibri_remote_auth_port="$default_jibri_out_port"
|
|
|
|
|
|
# - TURN Server (Stun Server) (for Nextcloud 'talk' app)
|
|
# -
|
|
nc_turn_server_ips=""
|
|
forward_nc_turn_server_ips=""
|
|
|
|
# - Ports used by local TURN Server (Stun Server)
|
|
# -
|
|
# - comma separated list
|
|
# -
|
|
nc_turn_ports="$standard_turn_service_ports"
|
|
nc_turn_udp_ports="$standard_turn_service_udp_ports"
|
|
|
|
|
|
# - TFTP Server
|
|
# -
|
|
# - NOT YET IMPLEMENTED
|
|
# -
|
|
tftp_server_ips=""
|
|
|
|
|
|
# - Prometheus Monitoring - local Server
|
|
# -
|
|
# - blank separated list of IPv6 addresses
|
|
# -
|
|
prometheus_local_server_ips=""
|
|
|
|
# - (Remote) prometheus ports
|
|
# -
|
|
# - !! comma separated list of ports
|
|
# -
|
|
prometheus_remote_client_ports="$standard_prometheus_ports"
|
|
|
|
|
|
# - Prometheus Monitoring - local Client
|
|
# -
|
|
# - blank separated list of IPv6 addresses
|
|
# -
|
|
prometheus_local_client_ips=""
|
|
|
|
# - Local prometheus ports
|
|
# -
|
|
# - !! comma separated list of ports
|
|
# -
|
|
prometheus_local_client_ports="$standard_prometheus_ports"
|
|
|
|
# - blank separated list of IPv6 addresses
|
|
# -
|
|
prometheus_remote_server_ips=""
|
|
|
|
|
|
# - Munin Server
|
|
# -
|
|
munin_server_ips=""
|
|
forward_munin_server_ips=""
|
|
|
|
# - Port used by clients hosted on this (local) Munin Services
|
|
# -
|
|
# - !! Only one port is possible !!
|
|
# -
|
|
munin_remote_port="$standard_munin_port"
|
|
|
|
|
|
# - Remote Munin Server
|
|
# -
|
|
munin_remote_ip="2a01:4f9:3070:2bda::227"
|
|
munin_local_port="4949"
|
|
|
|
# - XyMon Server
|
|
# -
|
|
# - NOT YET IMPLEMENTED
|
|
# -
|
|
xymon_server_ips=""
|
|
local_xymon_client=false
|
|
|
|
# - Port used by local Xymon Services
|
|
# -
|
|
# - !! Only one port is possible !!
|
|
# -
|
|
xymon_port="$standard_xymon_port"
|
|
|
|
|
|
|
|
# -------------
|
|
# - Protocols Out
|
|
# -------------
|
|
|
|
# - Rsync Protocol
|
|
# -
|
|
# - Needed for some integrated provider of clamav-unofficial-sigs
|
|
# -
|
|
rsync_out_ips=""
|
|
forward_rsync_out_ips=""
|
|
rsync_ports="873"
|
|
|
|
|
|
# -------------
|
|
# --- Allow special Ports (OUT)
|
|
# -------------
|
|
|
|
# - TCP Ports
|
|
tcp_out_ports=""
|
|
forward_tcp_out_ports=""
|
|
|
|
# - UDP Ports
|
|
udp_out_ports=""
|
|
forward_udp_out_ports=""
|
|
|
|
|
|
|
|
# =============
|
|
# --- Portforwarding
|
|
# =============
|
|
|
|
# - Portforwarding TCP
|
|
# -
|
|
# - portforward_tcp="<device-in>,<src-ip>,<port-in>,<ip-to-forward>,<port-out>"
|
|
# -
|
|
# - Multiple declarations (blank separated list) are possible
|
|
# -
|
|
# - Example:
|
|
# - portforward_tcp="${ext_if_1},${ext_1_ip},9997,2a01:30:0:13:5054:ff:fe83:dbda,c22
|
|
# - ${ext_if_1},${ext_1_ip},80,2a01:30:0:13:211:84ff:feb7:7f9c,80
|
|
# - ${ext_if_1},2a01:30:0:13:2d1:2bff:fec1:aed0,80,2a01:30:0:13:211:84ff:feb7:7f9c,80
|
|
# - ${ext_if_1},2a01:30:0:13:2d1:2bff:fec1:aed0,443,2a01:30:0:13:211:84ff:feb7:7f9c,443
|
|
# - "
|
|
# -
|
|
# - Note!
|
|
# - be careful if you use a variable (e.g. ext_1_ip) that it contains NO SPACES.
|
|
# -
|
|
# - Blank separated list
|
|
# -
|
|
portforward_tcp=""
|
|
|
|
|
|
# - Portforwarding UDP
|
|
# -
|
|
# - portforward_udp="<device-in>,<src-ip>,<udp-port-in>,<ip-to-forward>,<udp-port-out>"
|
|
# -
|
|
# - Multiple declarations (blank separated list) are possible
|
|
# -
|
|
# - Example:
|
|
# - portforward_udp="
|
|
# - ${ext_if_1},${ext_1_ip},1094,,1094
|
|
# - ${ext_if_1},${ext_1_ip},1095,,1095
|
|
# - "
|
|
# -
|
|
# - Blank separated list
|
|
# -
|
|
portforward_udp=""
|
|
|
|
|
|
|
|
# -------------
|
|
# --- Block IP's / IP-Ranges
|
|
# -------------
|
|
|
|
blocked_ips=""
|
|
|
|
|
|
# -------------
|
|
# --- Block Ports
|
|
# -------------
|
|
|
|
# - Generally (for all interfaces) block this ports
|
|
# -
|
|
# - Portmapper
|
|
# - tcp 111
|
|
# - udp 111
|
|
# -
|
|
# - Authentication tap ident
|
|
# - tcp 113
|
|
# -
|
|
# - Location Service
|
|
# - tcp 135
|
|
# -
|
|
# - Windows Stuff
|
|
# - tcp 137:139
|
|
# - udp 137:139
|
|
# - tcp 445
|
|
# -
|
|
block_tcp_ports="111 113 135 137:139 445"
|
|
block_udp_ports="111 137:139"
|
|
|
|
|
|
# -------------
|
|
# - Some special stuff
|
|
# -------------
|
|
|
|
create_traffic_counter=true
|
|
create_iperf_rules=true
|
|
|
|
|
|
# -------------
|
|
# - Protection against ...
|
|
# -------------
|
|
|
|
# - Protection against syn-flooding
|
|
# -
|
|
protection_against_syn_flooding=true
|
|
|
|
# - Protection against port scanning
|
|
# -
|
|
protection_against_port_scanning=true
|
|
|
|
# - Protection against SSH brute-force attacks
|
|
# -
|
|
protection_against_ssh_brute_force_attacks=true
|
|
|
|
|
|
# -------------
|
|
# - Limit Connections
|
|
# -------------
|
|
|
|
# - Limit connections per source IP
|
|
# -
|
|
limit_connections_per_source_IP=true
|
|
per_IP_connection_limit=$default_per_IP_connection_limit
|
|
|
|
# - Limit RST packets
|
|
# -
|
|
limit_rst_packets=true
|
|
|
|
# - Limit new TCP connections per second per source IP
|
|
# -
|
|
limit_new_tcp_connections_per_seconds_per_source_IP=true
|
|
|
|
|
|
# -------------
|
|
# --- Kernel related - Adjust Kernel Parameters (Security/Tuning)
|
|
# -------------
|
|
|
|
# - Disable ip forwarding between interfaces
|
|
# -
|
|
kernel_forward_between_interfaces=false
|
|
|
|
# - Deactivate Source Routed Packets
|
|
# -
|
|
kernel_deactivate_source_route=true
|
|
|
|
# - Deactivate sending ICMP redirects
|
|
# -
|
|
# - ICMP redirects are used by routers to specify better routing paths out of
|
|
# - one network, based on the host choice, so basically it affects the way
|
|
# - packets are routed and destinations.
|
|
# -
|
|
kernel_dont_accept_redirects=true
|
|
|