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94 lines
2.2 KiB
Markdown
94 lines
2.2 KiB
Markdown
OpenVPN over Obfsproxy
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======================
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`Obfsproxy` is a pluggable transport proxy written in python.
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It provides several obfuscation method. I consider `scramblesuit` the best.
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I will update this image if there's better one.
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`scramblesuit` can transport any application that supports SOCKS.
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This includes `Tor`, `VPN`, `SSH`, and many other protocols.
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We can transport `OpenVPN` over `Obfsproxy`, so that firewall cannot detect it.
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In the following example, you should run `vimagick/openvpn` container first.
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Don't forget to edit `/etc/openvpn/openvpn.conf` to use `proto tcp`.
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## docker-compose.yml
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```
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data:
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image: busybox
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volumes:
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- /etc/openvpn
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server:
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image: vimagick/openvpn
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ports:
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- "1194:1194/tcp"
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volumes_from:
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- data
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cap_add:
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- NET_ADMIN
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restart: always
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obfsproxy:
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image: vimagick/obfsproxy
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ports:
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- "4911:4911"
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links:
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- server:openvpn
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environment:
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- PASSWORD=J23TNHPJPAOQJLTCPLFD4CQYVFY6MEVP
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- DEST_ADDR=openvpn
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- DEST_PORT=1194
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- LISTEN_ADDR=0.0.0.0
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- LISTEN_PORT=4911
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restart: always
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```
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To link a existing `openvpn` container, please use `external_links` instead of `links`.
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```
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obfsproxy:
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image: vimagick/obfsproxy
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ports:
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- "4911:4911"
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external_links:
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- openvpn_server_1:openvpn
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environment:
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- PASSWORD=J23TNHPJPAOQJLTCPLFD4CQYVFY6MEVP
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- DEST_ADDR=openvpn
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- DEST_PORT=1194
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- LISTEN_ADDR=0.0.0.0
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- LISTEN_PORT=4911
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restart: always
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```
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The default run mode is `server`. You can also run container in `client` mode.
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The following example shows us how to make a OpenVPN relay:
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```
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obfsproxy:
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image: vimagick/obfsproxy
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ports:
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- "1194:1194/tcp"
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environment:
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- PASSWORD=J23TNHPJPAOQJLTCPLFD4CQYVFY6MEVP
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- DEST_ADDR=vpn.easypi.info
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- DEST_PORT=4911
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- RUN_MODE=client
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- LISTEN_ADDR=0.0.0.0
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- LISTEN_PORT=1194
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restart: always
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```
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The password should be encoded by Base32 with fixed length.
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You can generate one via this command:
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```
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python -c 'import base64, os; print base64.b32encode(os.urandom(20))'
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```
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Note: There's no ports exposed in Dockerfile. You need to expose port explicitly.
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