2023-10-12 09:35:06 +00:00
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WAN=em0 LAN=em1
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FreeBSD IPFW :
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ipfw delete 100
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ipfw add 100 fwd 127.0.0.1,988 tcp from me to any 80,443 proto ip4 xmit em0 not uid daemon
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ipfw add 100 fwd ::1,988 tcp from me to any 80,443 proto ip6 xmit em0 not uid daemon
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ipfw add 100 fwd 127.0.0.1,988 tcp from any to any 80,443 proto ip4 recv em1
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ipfw add 100 fwd ::1,988 tcp from any to any 80,443 proto ip6 recv em1
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ipfw delete 100
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ipfw add 100 allow tcp from me to table\(nozapret\) 80,443
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ipfw add 100 fwd 127.0.0.1,988 tcp from me to table\(zapret\) 80,443 proto ip4 xmit em0 not uid daemon
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ipfw add 100 fwd ::1,988 tcp from me to table\(zapret\) 80,443 proto ip6 xmit em0 not uid daemon
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ipfw add 100 allow tcp from any to table\(nozapret\) 80,443 recv em1
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ipfw add 100 fwd 127.0.0.1,988 tcp from any to any 80,443 proto ip4 recv em1
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ipfw add 100 fwd ::1,988 tcp from any to any 80,443 proto ip6 recv em1
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/opt/zapret/tpws/tpws --port=988 --user=daemon --bind-addr=::1 --bind-addr=127.0.0.1
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; Loop avoidance.
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; FreeBSD artificially ignores sockarg for ipv6 in the kernel.
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; This limitation is coming from the ipv6 early age. Code is still in "testing" state. 10-20 years. Everybody forgot about it.
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; dvtws sends ipv6 forged frames using another divert socket (HACK). they can be filtered out using 'diverted'.
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ipfw delete 100
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2024-03-02 14:53:37 +00:00
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ipfw add 100 divert 989 tcp from any to any 80,443 out not diverted not sockarg xmit vmx0
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2023-10-12 09:35:06 +00:00
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ipfw add 100 divert 989 udp from any to any 443 out not diverted not sockarg xmit em0
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2024-03-02 14:53:37 +00:00
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# this is required for autottl but very bad, all incoming traffic will be diverted, no way to limit like in linux (connbytes)
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ipfw add 100 divert 989 tcp from any 80,443 to any in not diverted not sockarg recv em0
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2023-10-12 09:35:06 +00:00
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ipfw delete 100
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ipfw add 100 allow tcp from me to table\(nozapret\) 80,443
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ipfw add 100 divert 989 tcp from any to table\(zapret\) 80,443 out not diverted not sockarg xmit em0
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/opt/zapret/nfq/dvtws --port=989 --debug --dpi-desync=split
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sample ipfw NAT setup :
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WAN=em0
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LAN=em1
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ipfw -q flush
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ipfw -q nat 1 config if $WAN unreg_only reset
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ipfw -q add 10 allow ip from any to any via $LAN
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ipfw -q add 20 allow ip from any to any via lo0
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ipfw -q add 300 nat 1 ip4 from any to any in recv $WAN
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ipfw -q add 301 check-state
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ipfw -q add 350 skipto 390 tcp from any to any out xmit $WAN setup keep-state
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ipfw -q add 350 skipto 390 udp from any to any out xmit $WAN keep-state
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ipfw -q add 360 allow all from any to me in recv $WAN
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ipfw -q add 390 nat 1 ip4 from any to any out xmit $WAN
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ipfw -q add 10000 allow ip from any to any
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Forwarding :
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sysctl net.inet.ip.forwarding=1
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sysctl net.inet6.ip6.forwarding=1
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OpenBSD PF :
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; dont know how to rdr-to from local system. doesn't seem to work. only works for routed traffic.
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/etc/pf.conf
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pass in quick on em1 inet proto tcp to port {80,443} rdr-to 127.0.0.1 port 988
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pass in quick on em1 inet6 proto tcp to port {80,443} rdr-to ::1 port 988
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pfctl -f /etc/pf.conf
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/opt/zapret/tpws/tpws --port=988 --user=daemon --bind-addr=::1 --bind-addr=127.0.0.1
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; dvtws works both for routed and local
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pass in quick on em0 proto tcp from port {80,443} no state
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pass out quick on em0 proto tcp to port {80,443} divert-packet port 989 no state
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pfctl -f /etc/pf.conf
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./dvtws --port=989 --dpi-desync=split2
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; dvtws with table limitations : to zapret,zapret6 but not to nozapret,nozapret6
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; reload tables : pfctl -f /etc/pf.conf
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set limit table-entries 2000000
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table <zapret> file "/opt/zapret/ipset/zapret-ip.txt"
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table <zapret-user> file "/opt/zapret/ipset/zapret-ip-user.txt"
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table <nozapret> file "/opt/zapret/ipset/zapret-ip-exclude.txt"
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pass out quick on em0 inet proto tcp to <nozapret> port {80,443}
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pass in quick on em0 inet proto tcp from <zapret> port {80,443} no state
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pass out quick on em0 inet proto tcp to <zapret> port {80,443} divert-packet port 989 no state
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pass in quick on em0 inet proto tcp from <zapret-user> port {80,443} no state
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pass out quick on em0 inet proto tcp to <zapret-user> port {80,443} divert-packet port 989 no state
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table <zapret6> file "/opt/zapret/ipset/zapret-ip6.txt"
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table <zapret6-user> file "/opt/zapret/ipset/zapret-ip-user6.txt"
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table <nozapret6> file "/opt/zapret/ipset/zapret-ip-exclude6.txt"
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pass out quick on em0 inet6 proto tcp to <nozapret6> port {80,443}
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pass in quick on em0 inet6 proto tcp from <zapret6> port {80,443} no state
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pass out quick on em0 inet6 proto tcp to <zapret6> port {80,443} divert-packet port 989 no state
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pass in quick on em0 inet6 proto tcp from <zapret6-user> port {80,443} no state
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pass out quick on em0 inet6 proto tcp to <zapret6-user> port {80,443} divert-packet port 989 no state
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