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Fix internal routing to main server

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This commit is contained in:
Daniel Flanagan 2021-07-10 23:48:10 -05:00
parent be853cc9f6
commit 4a36006457
3 changed files with 50 additions and 10 deletions
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11
dnsmasq.conf
View file

@ -78,7 +78,14 @@ server=8.8.4.4
# Add domains which you want to force to an IP address here. # Add domains which you want to force to an IP address here.
# The example below send any host in double-click.net to a local # The example below send any host in double-click.net to a local
# web-server. # web-server.
#address=/double-click.net/127.0.0.1 address=/git.lyte.dev/10.0.0.10
address=/h.lyte.dev/10.0.0.10
address=/a.lyte.dev/10.0.0.10
address=/.h.lyte.dev/10.0.0.10
address=/#.h.lyte.dev/10.0.0.10
address=/bw.lyte.dev/10.0.0.10
address=/files.lyte.dev/10.0.0.10
address=/grafana.lyte.dev/10.0.0.10
# --address (and --server) work with IPv6 addresses too. # --address (and --server) work with IPv6 addresses too.
#address=/www.thekelleys.org.uk/fe80::20d:60ff:fe36:f83 #address=/www.thekelleys.org.uk/fe80::20d:60ff:fe36:f83
@ -225,7 +232,7 @@ dhcp-range=10.0.0.5,10.0.0.250,255.255.255.0,10m
# do not matter, it's permissible to give name, address and MAC in any # do not matter, it's permissible to give name, address and MAC in any
# order. # order.
dhcp-host=f0:2f:74:c9:9b:61,dragon,10.0.0.5,12h dhcp-host=f0:2f:74:c9:9b:61,dragon,10.0.0.5,12h
# dhcp-host=????,faceless,10.0.0.10,12h dhcp-host=00:50:b6:24:27:0b,faceless,10.0.0.10,12h
# Always allocate the host with Ethernet address 11:22:33:44:55:66 # Always allocate the host with Ethernet address 11:22:33:44:55:66
# The IP address 192.168.0.60 # The IP address 192.168.0.60

8
firewall-edit.sh
View file

@ -3,6 +3,7 @@
# TODO: diff with existing before just overwriting what's here in git? # TODO: diff with existing before just overwriting what's here in git?
my_config="$(dirname "$(realpath "$0")")/nftables.conf" my_config="$(dirname "$(realpath "$0")")/nftables.conf"
t="/tmp/nftables.conf"
# we don't care about existing rules - just use ours, thanks # we don't care about existing rules - just use ours, thanks
# sudo nft -s list ruleset >> "$f" # sudo nft -s list ruleset >> "$f"
@ -12,9 +13,10 @@ cat "$my_config"
echo "Do you want to load this config? [y/N]" echo "Do you want to load this config? [y/N]"
read -r l read -r l
[[ $l == "y" ]] && { [[ $l == "y" ]] && {
printf "flush ruleset\n\n" > "/tmp/nftables.txt" printf "flush ruleset\n\n" > "$t"
cat "$my_config" >> "/tmp/nftables.conf" cat "$my_config" >> "$t"
sudo nft -f "/tmp/nftables.conf" sudo nft -f "$t"
sudo cp "$my_config" "/etc/nftables.conf" sudo cp "$my_config" "/etc/nftables.conf"
rm "$t"
echo "Done loading!" echo "Done loading!"
} }

41
nftables.conf
View file

@ -1,15 +1,22 @@
define WAN = eth0
define LAN = lan0
define FACELESS_TCP_PORTS = { 443, 80, 2222, 2200 }
# define FACELESS_UDP_PORTS = 60000-60009
define DRAGON_TCP_PORTS = { 2221 }
# define DRAGON_UDP_PORTS = 60020-60029
table inet filter { table inet filter {
chain input { chain input {
type filter hook input priority filter; policy accept; type filter hook input priority filter; policy accept;
udp dport 546 accept iifname "lo" accept
udp dport 53 accept
ct state { established, related } accept ct state { established, related } accept
ct state invalid drop ct state invalid drop
iifname "lo" accept
ip protocol icmp accept ip protocol icmp accept
meta l4proto ipv6-icmp accept meta l4proto ipv6-icmp accept
tcp dport 22 accept tcp dport { 22 } accept
accept udp dport { 546, 53, 67 } accept
drop
} }
chain forward { chain forward {
@ -19,6 +26,30 @@ table inet filter {
chain output { chain output {
type filter hook output priority filter; policy accept; type filter hook output priority filter; policy accept;
accept
}
}
table ip nat {
chain postrouting {
type nat hook postrouting priority 100; policy accept;
oifname $LAN masquerade
}
chain prerouting {
type nat hook prerouting priority -100; policy accept;
# ip daddr 10.0.0.1 tcp dport ( 2221 ) dnat to 10.0.0.5:22
# ip daddr 10.0.0.1 udp dport ( 60020 ) dnat to 10.0.0.5:60020
# ip daddr 10.0.0.1 udp dport ( 60021 ) dnat to 10.0.0.5:60021
# ip daddr 10.0.0.1 tcp dport ( 80 ) dnat to 10.0.0.10:80
# ip daddr 10.0.0.1 tcp dport ( 443 ) dnat to 10.0.0.10:443
# ip daddr 10.0.0.1 tcp dport ( 2222 ) dnat to 10.0.0.10:2222
# ip daddr 10.0.0.1 tcp dport ( 2200 ) dnat to 10.0.0.10:22
iifname $WAN tcp dport { 443, 80 } dnat to 10.0.0.10
# iifname "lan0" tcp dport { 443, 80 } dnat to 10.0.0.10
} }
} }