We have two virtual hosts on three linux servers behind an ELB. We have enabled proxy protocol for prod ELB so that the requests for ssl are terminated on instance rather than on ELB. We are seeing following errors flowing in error logs of our virtual host starting from 11th Oct. At the instance level there were no changes in the past.
Error log:
Quote:
[Thu Oct 19 14:57:07.126415 2017] [proxy_protocol:error] [pid 2992] [client 127.0.0.1:47348] ProxyProtocol: no valid header found
[Thu Oct 19 14:57:07.471596 2017] [proxy_protocol:error] [pid 3076] [client 127.0.0.1:47388] ProxyProtocol: no valid header found
[Thu Oct 19 14:57:07.785776 2017] [proxy_protocol:error] [pid 3076] [client 127.0.0.1:47428] ProxyProtocol: no valid header found
[Thu Oct 19 14:57:07.909984 2017] [proxy_protocol:error] [pid 2528] [client 127.0.0.1:47450] ProxyProtocol: no valid header found
[Thu Oct 19 14:57:08.384383 2017] [proxy_protocol:error] [pid 2612] [client 127.0.0.1:47496]
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Access logs:
Quote:
127.0.0.1 - - [19/Oct/2017:14:57:45 +0000] "GET /admin/index.php HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:45 +0000] "GET /? HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:45 +0000] "GET /admin/index.php HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:45 +0000] "GET /? HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:45 +0000] "GET /admin/index.php HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:46 +0000] "GET /? HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:46 +0000] "GET /admin/index.php HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:46 +0000] "GET /? HTTP/1.1" 302 - "-" "-"
127.0.0.1 - - [19/Oct/2017:14:57:46 +0000] "GET /admin/index.php HTTP/1.1" 302 - "-" "-"
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These errors started to appear from 11th october and still we are yet to figure the root cause. Could you please suggest on how to eliminate these errors and also the source of these errors.