diff options
Diffstat (limited to 'configs/configs_root_dir/etc')
7 files changed, 377 insertions, 0 deletions
diff --git a/configs/configs_root_dir/etc/nftables_phantun_wg_client.conf b/configs/configs_root_dir/etc/nftables_phantun_wg_client.conf new file mode 100644 index 0000000..d42be47 --- /dev/null +++ b/configs/configs_root_dir/etc/nftables_phantun_wg_client.conf @@ -0,0 +1,66 @@ +#!/usr/bin/nft -f + +# IPv4/IPv6 Simple & Safe firewall ruleset. +# More examples in /usr/share/nftables/ and /usr/share/doc/nftables/examples/. + +# some codes from https://wiki.archlinux.org/title/Nftables + +# needed for reload config using `sudo systemctl restart nftables` or `sudo nft -f /etc/nftables.conf` +flush ruleset + +table inet my_table { + + chain my_input { + type filter hook input priority filter + policy drop + + ct state invalid drop comment "early drop of invalid connections" + ct state {established, related} accept comment "allow tracked connections" + iifname lo accept comment "allow from loopback" + ip protocol icmp accept + meta l4proto ipv6-icmp accept + + #tcp dport ssh accept + #tcp dport qbt-nox accept + #tcp dport searx accept + tcp dport qrcp accept + udp dport mdns accept + tcp dport qbt accept + udp dport qbt accept + tcp dport monerod-p2p accept + #tcp dport iperf3 accept + #udp dport wireguard accept + + # insp to ia udp2raw wireguard + #ip saddr 89.213.174.92 tcp sport 60711 drop + + pkttype host limit rate 5/second counter reject with icmpx type admin-prohibited + counter comment "count any other traffic" + } + + chain my_forward { + type filter hook forward priority filter + policy drop + # Drop everything forwarded to us. We do not forward. That is routers job. + # next two lines are needed for phantun + iifname pt0 accept + oifname pt0 accept + } + + chain my_output { + type filter hook output priority filter + policy accept + # Accept every outbound connection + } +} + +table inet nat { + # needed for phantun https://github.com/dndx/phantun + # note here is postrouting not prerouting, server side phantun config is prerouting instead + chain postrouting { + type nat hook postrouting priority srcnat + policy accept + iifname pt0 oif enp3s0 masquerade + iifname pt0 oif wlp2s0 masquerade + } +} diff --git a/configs/configs_root_dir/etc/nftables_phantun_wg_server.conf b/configs/configs_root_dir/etc/nftables_phantun_wg_server.conf new file mode 100644 index 0000000..4c7d084 --- /dev/null +++ b/configs/configs_root_dir/etc/nftables_phantun_wg_server.conf @@ -0,0 +1,87 @@ +#!/usr/bin/nft -f + +# IPv4/IPv6 Simple & Safe firewall ruleset. +# More examples in /usr/share/nftables/ and /usr/share/doc/nftables/examples/. + +# references, some codes from: +# https://wiki.archlinux.org/title/Nftables +# https://www.procustodibus.com/blog/2021/11/wireguard-nftables +# https://wiki.gentoo.org/wiki/Nftables/Examples#Basic_NAT + +# needed for reload config using `sudo systemctl restart nftables` or `sudo nft -f /etc/nftables.conf` +flush ruleset + +define pub_iface = "eth0" +define wg_iface = "wg0" + +table inet my_table { + + chain my_input { + type filter hook input priority filter + policy drop + + ct state invalid drop comment "early drop of invalid connections" + ct state {established, related} accept comment "allow tracked connections" + iifname lo accept comment "allow from loopback" + iifname $wg_iface accept comment "allow from wireguard" + ip protocol icmp accept + meta l4proto ipv6-icmp accept + + tcp dport ssh accept + #tcp dport qbt-nox accept + tcp dport qbt accept + udp dport qbt accept + #tcp dport iperf3 accept + udp dport wireguard accept + #tcp dport 60711 accept + tcp dport 59083 accept + + # insp to ia udp2raw wireguard, not sure if needed + #ip daddr 89.213.174.92 tcp dport 60711 drop + + pkttype host limit rate 5/second counter reject with icmpx type admin-prohibited + counter comment "count any other traffic" + } + + chain my_forward { + type filter hook forward priority filter + policy drop + # Drop everything forwarded to us. We do not forward. That is routers job. + + # needed for wireguard? + #iifname $wg_iface oifname $pub_iface accept + #iifname $pub_iface oifname $wg_iface accept + iifname $wg_iface accept + oifname $wg_iface accept + # needed for phantun + iifname pt0 accept + oifname pt0 accept + } + + chain my_output { + type filter hook output priority filter + policy accept + # Accept every outbound connection + } +} + +# needed to wireguard NAT masquerade VPN traffic +# Need inet to masquerade both ipv4 and ipv6? If use ip it will only masquerade ipv4? If use ip6 it will only masquerade ipv6? +# https://wiki.nftables.org/wiki-nftables/index.php/Nftables_families +table inet nat { + # needed for phantun + # note here is prerouting not postrouting, client side phantun config is postrouting instead + chain prerouting { + type nat hook prerouting priority dstnat + policy accept + iif $pub_iface tcp dport 59083 dnat ip to 10.0.2.2 + iif $pub_iface tcp dport 59083 dnat ip6 to fdc9:281f:04d7:9eeb::2 + } + # newer kernel no need for `chain prerouting { type nat hook prerouting priority -100; policy accept; }`, more see https://www.procustodibus.com/blog/2021/11/wireguard-nftables/ + # for all packets to $pub_iface, after routing, replace source address with primary IP of $pub_iface interface + chain postrouting { + type nat hook postrouting priority 100 + policy accept + oifname $pub_iface masquerade + } +} diff --git a/configs/configs_root_dir/etc/nftables_udp2raw_wg_client.conf b/configs/configs_root_dir/etc/nftables_udp2raw_wg_client.conf new file mode 100644 index 0000000..9f5781c --- /dev/null +++ b/configs/configs_root_dir/etc/nftables_udp2raw_wg_client.conf @@ -0,0 +1,66 @@ +#!/usr/bin/nft -f + +# IPv4/IPv6 Simple & Safe firewall ruleset. +# More examples in /usr/share/nftables/ and /usr/share/doc/nftables/examples/. + +# some codes from https://wiki.archlinux.org/title/Nftables + +# needed for reload config using `sudo systemctl restart nftables` or `sudo nft -f /etc/nftables.conf` +flush ruleset + +table inet my_table { + + chain my_input { + type filter hook input priority filter + policy drop + + ct state invalid drop comment "early drop of invalid connections" + ct state {established, related} accept comment "allow tracked connections" + iifname lo accept comment "allow from loopback" + ip protocol icmp accept + meta l4proto ipv6-icmp accept + + #tcp dport ssh accept + #tcp dport qbt-nox accept + #tcp dport searx accept + tcp dport qrcp accept + udp dport mdns accept + tcp dport qbt accept + udp dport qbt accept + tcp dport monerod-p2p accept + #tcp dport iperf3 accept + #udp dport wireguard accept + + # insp to ia udp2raw wireguard + ip saddr 89.213.174.92 tcp sport 60711 drop + + pkttype host limit rate 5/second counter reject with icmpx type admin-prohibited + counter comment "count any other traffic" + } + + chain my_forward { + type filter hook forward priority filter + policy drop + # Drop everything forwarded to us. We do not forward. That is routers job. + # next two lines are needed for phantun + #iifname pt0 accept + #oifname pt0 accept + } + + chain my_output { + type filter hook output priority filter + policy accept + # Accept every outbound connection + } +} + +#table inet nat { +# # needed for phantun https://github.com/dndx/phantun +# # note here is postrouting not prerouting, server side phantun config is prerouting instead +# chain postrouting { +# type nat hook postrouting priority srcnat +# policy accept +# iifname pt0 oif enp3s0 masquerade +# iifname pt0 oif wlp2s0 masquerade +# } +#} diff --git a/configs/configs_root_dir/etc/nftables_udp2raw_wg_server.conf b/configs/configs_root_dir/etc/nftables_udp2raw_wg_server.conf new file mode 100644 index 0000000..c229f67 --- /dev/null +++ b/configs/configs_root_dir/etc/nftables_udp2raw_wg_server.conf @@ -0,0 +1,86 @@ +#!/usr/bin/nft -f + +# IPv4/IPv6 Simple & Safe firewall ruleset. +# More examples in /usr/share/nftables/ and /usr/share/doc/nftables/examples/. + +# references, some codes from: +# https://wiki.archlinux.org/title/Nftables +# https://www.procustodibus.com/blog/2021/11/wireguard-nftables +# https://wiki.gentoo.org/wiki/Nftables/Examples#Basic_NAT + +# needed for reload config using `sudo systemctl restart nftables` or `sudo nft -f /etc/nftables.conf` +flush ruleset + +define pub_iface = "eth0" +define wg_iface = "wg0" + +table inet my_table { + + chain my_input { + type filter hook input priority filter + policy drop + + ct state invalid drop comment "early drop of invalid connections" + ct state {established, related} accept comment "allow tracked connections" + iifname lo accept comment "allow from loopback" + iifname $wg_iface accept comment "allow from wireguard" + ip protocol icmp accept + meta l4proto ipv6-icmp accept + + tcp dport ssh accept + #tcp dport qbt-nox accept + tcp dport qbt accept + udp dport qbt accept + #tcp dport iperf3 accept + udp dport wireguard accept + tcp dport 60711 accept + #tcp dport 59083 accept + + # insp to ia udp2raw wireguard, not sure if needed + ip daddr 89.213.174.92 tcp dport 60711 drop + + pkttype host limit rate 5/second counter reject with icmpx type admin-prohibited + counter comment "count any other traffic" + } + + chain my_forward { + type filter hook forward priority filter + policy drop + # Drop everything forwarded to us. We do not forward. That is routers job. + + # needed for wireguard? + #iifname $wg_iface oifname $pub_iface accept + #iifname $pub_iface oifname $wg_iface accept + iifname $wg_iface accept + oifname $wg_iface accept + #iifname pt0 accept + #oifname pt0 accept + } + + chain my_output { + type filter hook output priority filter + policy accept + # Accept every outbound connection + } +} + +# needed to wireguard NAT masquerade VPN traffic +# Need inet to masquerade both ipv4 and ipv6? If use ip it will only masquerade ipv4? If use ip6 it will only masquerade ipv6? +# https://wiki.nftables.org/wiki-nftables/index.php/Nftables_families +table inet nat { + # needed for phantun + # note here is prerouting not postrouting, client side phantun config is postrouting instead + #chain prerouting { + # type nat hook prerouting priority dstnat + # policy accept + # iif $pub_iface tcp dport 59083 dnat ip to 10.0.2.2 + # iif $pub_iface tcp dport 59083 dnat ip6 to fdc9:281f:04d7:9eeb::2 + #} + # newer kernel no need for `chain prerouting { type nat hook prerouting priority -100; policy accept; }`, more see https://www.procustodibus.com/blog/2021/11/wireguard-nftables/ + # for all packets to $pub_iface, after routing, replace source address with primary IP of $pub_iface interface + chain postrouting { + type nat hook postrouting priority 100 + policy accept + oifname $pub_iface masquerade + } +} diff --git a/configs/configs_root_dir/etc/systemd/system/udp2raw@.service b/configs/configs_root_dir/etc/systemd/system/udp2raw@.service new file mode 100644 index 0000000..3d457de --- /dev/null +++ b/configs/configs_root_dir/etc/systemd/system/udp2raw@.service @@ -0,0 +1,13 @@ +[Unit] +Description=UDP over TCP/ICMP/UDP tunnel +After=network-online.target + +[Service] +ExecStart=/usr/bin/udp2raw --conf-file /etc/udp2raw/%i.conf +# from arch pkg +Restart=always +RestartSec=30 +StartLimitBurst=10 + +[Install] +WantedBy=multi-user.target diff --git a/configs/configs_root_dir/etc/udp2raw/client.conf b/configs/configs_root_dir/etc/udp2raw/client.conf new file mode 100644 index 0000000..82a67f6 --- /dev/null +++ b/configs/configs_root_dir/etc/udp2raw/client.conf @@ -0,0 +1,30 @@ +# Basically this file is the equivalent to splitting the command line options into multiple lines +# Each line should contain an option + +# https://www.procustodibus.com/blog/2022/02/wireguard-over-tcp/ + +# client +-c +# works +#--raw-mode icmp +#--raw-mode easy-faketcp +# default not working at home, works at school +#--raw-mode faketcp +# Or use -s if you use it on server side +# Define local address +-l 127.0.0.1:60711 +# Define remote address +-r 89.213.174.92:60711 +# I use --cipher-mode none so maybe no need a password +# if later on I want to encrypt, need to change this file's mode bit to 600 and switch to cfg -s add this file +# can be generated with `wg genpsk` +#-k <password> + +# https://discord.com/channels/1100649526232092692/1100760493423083560/1270466158730018836 +--cipher-mode none +--auth-mode none +# following two not sure if useful +--fix-gro +--seq-mode 0 + +#--log-level 5 diff --git a/configs/configs_root_dir/etc/udp2raw/server.conf b/configs/configs_root_dir/etc/udp2raw/server.conf new file mode 100644 index 0000000..aff3bc8 --- /dev/null +++ b/configs/configs_root_dir/etc/udp2raw/server.conf @@ -0,0 +1,29 @@ +# Basically this file is the equivalent to splitting the command line options into multiple lines +# Each line should contain an option + +# server +-s +# works +#--raw-mode icmp +#--raw-mode easy-faketcp +# default not working at home, works at school +#--raw-mode faketcp +# -l not sure which ip; test shows 127.0.0.1 not working, or maybe need change nftables.conf +-l 89.213.174.92:60711 +# without udpspeeder +-r 127.0.0.1:49432 +# with udpspeeder +#-r 127.0.0.1:53365 +# I use --cipher-mode none so maybe no need a password +# if later on I want to encrypt, need to change this file's mode bit to 600 and switch to cfg -s add this file +# can be generated with `wg genpsk` +#-k <password> + +# https://discord.com/channels/1100649526232092692/1100760493423083560/1270466158730018836 +--cipher-mode none +--auth-mode none +# following two not sure if useful +--fix-gro +--seq-mode 0 + +#--log-level 5 |