The proxy isn’t part of Aeternity node, seems like part of the deployment where the node is ran.
Server logs suggest this may be the situation:
2019-07-15 03:07:26 =ERROR REPORT====
Decode error, reason: badarg, message: <<"GET / HTTP/1.0\r\n">>2019-07-15 03:07:26 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\r\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"POST / HTTP/1.1\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Host: 127.0.0.1:80\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"User-Agent: Go-http-client/1.3\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Content-Length: 79\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Accept: application/json\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Content-Type: application/json\n">>2019-07-15 04:10:03 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Accept-Encoding: identity\n">>2019-07-15 08:23:28 =ERROR REPORT====
Decode error, reason: badarg, message: <<"POST / HTTP/1.1\n">>2019-07-15 08:23:28 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Host: 127.0.0.1:80\n">>2019-07-15 08:23:28 =ERROR REPORT====
Decode error, reason: badarg, message: <<"User-Agent: Go-http-client/1.3\n">>2019-07-15 08:23:28 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Content-Length: 79\n">>2019-07-15 08:23:28 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Accept: application/json\n">>2019-07-15 08:23:28 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Content-Type: application/json\n">>2019-07-15 09:52:43 =ERROR REPORT====
Decode error, reason: badarg, message: <<"CONNECT check.best-proxies.ru:80 HTTP/1.1\r\n">>2019-07-15 09:52:43 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Host: check.best-proxies.ru:80\r\n">>2019-07-15 09:52:43 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\r\n">>2019-07-15 10:33:58 =ERROR REPORT====
Decode error, reason: badarg, message: <<"GET http://clientapi.ipip.net/echo.php?info=1234567890 HTTP/1.1\r\n">>2019-07-15 10:33:58 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Host: clientapi.ipip.net\r\n">>2019-07-15 10:33:58 =ERROR REPORT====
Decode error, reason: badarg, message: <<"User-Agent: Go-http-client/1.1\r\n">>2019-07-15 10:33:58 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Connection: close\r\n">>2019-07-15 10:33:58 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\r\n">>2019-07-15 13:02:33 =ERROR REPORT====
Decode error, reason: badarg, message: <<"GET / HTTP/1.0\r\n">>2019-07-15 13:02:33 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\r\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"GET / HTTP/1.0\r\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Host: 47.244.15.72:8888\r\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Accept: */*\r\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\r\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"info\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\n">>2019-07-15 14:01:16 =ERROR REPORT====
Decode error, reason: badarg, message: <<"USER anonymous\r\n">>2019-07-15 14:36:11 =ERROR REPORT====
Decode error, reason: badarg, message: <<"GET / HTTP/1.0\r\n">>2019-07-15 14:36:11 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\r\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"POST / HTTP/1.1\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Host: 127.0.0.1:80\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"User-Agent: Go-http-client/1.3\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Content-Length: 79\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Accept: application/json\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Content-Type: application/json\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"Accept-Encoding: identity\n">>2019-07-15 15:00:04 =ERROR REPORT====
Decode error, reason: badarg, message: <<"\n">>2019-07-15 17:37:42 =ERROR REPORT====
Decode error, reason: badarg, message: <<"CONNECT check.best-proxies.ru:80 HTTP/1.1\r\n">>2019-07-15 17:53:39 =ERROR REPORT====
Decode error, reason: badarg, message:
comes directly from aestratum_lib
which is used for parsing of the payload coming from aestratum client, so definitely something is causing a non JSON input sent to the Aestratum server…