==> /var/log/chef-server/nginx/access.log <==
192.168.254.254 - - [02/Aug/2013:22:53:34 +0400]  "GET /cookbooks?num_versions=all HTTP/1.1" 200 "0.014" 2 "-" "Chef Knife/11.6.0 (ruby-2.0.0-p247; ohai-6.18.0; x86_64-linux; +http://opscode.com)" "127.0.0.1:8000" "200" "0.009" "11.6.0" "algorithm=sha1;version=1.0;" "prius" "2013-08-02T18:52:08Z" "2jmj7l5rSw0yVb/vlWAYkK/YBwk=" 938
192.168.254.254 - - [02/Aug/2013:22:53:34 +0400]  "POST /sandboxes HTTP/1.1" 201 "0.312" 6061 "-" "Chef Knife/11.6.0 (ruby-2.0.0-p247; ohai-6.18.0; x86_64-linux; +http://opscode.com)" "127.0.0.1:8000" "201" "0.267" "11.6.0" "algorithm=sha1;version=1.0;" "prius" "2013-08-02T18:52:08Z" "5qzwTqgsEngpnRhAgRLbXjkFZeE=" 1750

==> /var/log/chef-server/bookshelf/current <==
2013-08-02_18:53:34.73514
2013-08-02_18:53:34.73517 =ERROR REPORT==== 2-Aug-2013::22:53:34 ===
2013-08-02_18:53:34.73518 {error,{{mini_s3,make_signed_url_authorization},
2013-08-02_18:53:34.73518         [<<"SECRETKEY">>,"put",
2013-08-02_18:53:34.73518          "/bookshelf/organization-00000000000000000000000000000000/checksum-defbf24ccb9a0875f212a13a468a53b2",
2013-08-02_18:53:34.73519          undefined,
2013-08-02_18:53:34.73519          [{'Accept',"application/json"},
2013-08-02_18:53:34.73519           {'Accept-Encoding',"gzip, deflate"},
2013-08-02_18:53:34.73520           {'Connection',"close"},
2013-08-02_18:53:34.73520           {'Content-Length',"938"},
2013-08-02_18:53:34.73520           {'Content-Md5',"3vvyTMuaCHXyEqE6RopTsg=="},
2013-08-02_18:53:34.73520           {'Content-Type',"application/x-binary"},
2013-08-02_18:53:34.73521           {'Host',"chef.example.com:443"},
2013-08-02_18:53:34.73521           {'User-Agent',"Ruby"},
2013-08-02_18:53:34.73521           {'X-Forwarded-For',"111.111.111.111, 192.168.254.1"},
2013-08-02_18:53:34.73521           {"X-Forwarded-Proto","https"},
2013-08-02_18:53:34.73522           {"X-Ops-Authorization-1",
2013-08-02_18:53:34.73522            "D2JS2Zaw0HIiU3yQGieDl/gYGKsetK8dVEt+qZQYy3SJlc0L+vQp5pmDIVFk"},
2013-08-02_18:53:34.73522           {"X-Ops-Authorization-2",
2013-08-02_18:53:34.73523            "P1Zn0Lt8G4DL4UyPaE+fma3gMjpxIpJT/Xy6y4WHKcfYunopk3MXBY2hawLK"},
2013-08-02_18:53:34.73523           {"X-Ops-Authorization-3",
2013-08-02_18:53:34.73523            "N6W9o5aTdHY81liB2YdH4F1namnFR0fSOiyW7XhNQ8F9QgmQeDGnaxJip35V"},
2013-08-02_18:53:34.73524           {"X-Ops-Authorization-4",
2013-08-02_18:53:34.73524            "j0LXU8YNTQ7IKtTQL1+6NItwZ5V1QMuhQ+Mt9o8/d8qZC8ivh3xBqhEKRysG"},
2013-08-02_18:53:34.73525           {"X-Ops-Authorization-5",
2013-08-02_18:53:34.73525            "pJyAAX0OmhyeLiTFW+5VmjmcZ0PmTjnn8nInhFw32RM0jShBmX5vXLrTM8nz"},
2013-08-02_18:53:34.73525           {"X-Ops-Authorization-6",
2013-08-02_18:53:34.73525            "qztbntH0SJoFjGbs4uuiCY2yKYmu4MqrnrstNd8SCw=="},
2013-08-02_18:53:34.73526           {"X-Ops-Content-Hash","D0jt8+gfLk2VEheTiAg8cOsg0mI="},
2013-08-02_18:53:34.73526           {"X-Ops-Sign","algorithm=sha1;version=1.0;"},
2013-08-02_18:53:34.73526           {"X-Ops-Timestamp","2013-08-02T18:52:09Z"},
2013-08-02_18:53:34.73526           {"X-Ops-Userid","prius"},
2013-08-02_18:53:34.73527           {"X-Real-Ip","192.168.254.1"}]],
2013-08-02_18:53:34.73527         badarg}}