Retire the tinyproxy HTTP container (tinyproxy has no per-source-IP conditional auth) and serve both the HTTP proxy (:3128) and SOCKS5 (:1080) from a single 3proxy instance. LAN (192.168.0.0/22) stays passwordless; any non-LAN source (i.e. external clients via the router port-forward) must authenticate. Credentials live in a host-only /etc/3proxy/3proxy.secret (0600, not in git), included by 3proxy.cfg. A deny rule on the gateway IP makes the proxy fail closed if the port-forward ever SNATs to 192.168.0.1. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
48 lines
1.9 KiB
INI
48 lines
1.9 KiB
INI
# Unified LAN proxy for the tekhnohim Tailscale exit-node egress.
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#
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# One 3proxy instance serves BOTH an HTTP proxy (:3128) and a SOCKS5 proxy
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# (:1080), each chained to the Tailscale userspace SOCKS5 (ts-proxy:1055) so
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# clients exit the internet as the Hetzner exit-node IP (89.167.72.79).
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# TCP only (Tailscale userspace SOCKS5 has no UDP ASSOCIATE -> no QUIC/HTTP3).
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#
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# Access model (LAN free, outside password):
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# * LAN 192.168.0.0/22 -> authorised by source IP, NO password.
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# * everyone else -> must authenticate (external clients arriving via
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# the router port-forward keep their public source
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# IP, so they fall through to the password rule).
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# The username/password lives in a host-only file (0600, NOT in git), mounted
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# separately and pulled in with the include below - same pattern as ts.env.
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nserver 127.0.0.11
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nscache 65536
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timeouts 1 5 30 60 180 1800 15 60
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log
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# Account(s) for external, password-authenticated access (host-only secret):
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include /etc/3proxy/3proxy.secret
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# iponly authorises the LAN by address; strong forces login for the rest.
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auth iponly strong
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# Safety guard: never treat the router's own address as a trusted LAN client.
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# If the port-forward ever SNATs external traffic to the gateway IP, this rule
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# makes the proxy fail CLOSED (external denied) instead of becoming an open
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# proxy. Verify after opening the port: an unauthenticated external client
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# must be refused.
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deny * 192.168.0.1
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# LAN clients: allowed by source IP, no password. Egress via the Tailscale
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# userspace SOCKS5 (a `parent` binds to the `allow` line directly above it).
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allow * 192.168.0.0/22
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parent 1000 socks5 ts-proxy 1055
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# External clients: must present the configured account, same egress.
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allow thproxy
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parent 1000 socks5 ts-proxy 1055
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# Anything else: denied.
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deny *
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proxy -p3128 -a -i0.0.0.0
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socks -p1080 -i0.0.0.0
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