Hi everybody, I used a openseradmin who is based on rubygem (i suppose ), so when I start my server of this openseradmin in the http://localhost:3000, I reciceved some messages like this: In the web page: SocketError in LoginController#login getaddrinfo: Name or service not known RAILS_ROOT: script/../config/.. Application Trace | Framework Trace | Full Trace /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `real_connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:389:in `connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:152:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:82:in `new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:82:in `mysql_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:262:in `send' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:262:in `connection_without_query_cache=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ query_cache.rb:54:in `connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:230:in `retrieve_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:78:in `connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1456:in `quote_bound_value' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `replace_bind_variables' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `gsub' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `replace_bind_variables' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1416:in `sanitize_sql_array' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1387:in `sanitize_sql' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1163:in `add_conditions!' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1096:in `construct_finder_sql' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:997:in `find_every' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:991:in `find_initial' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:417:in `find' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ deprecated_finders.rb:23:in `find_first_without_deprecation' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /deprecation.rb:94:in `find_first' app/models/user.rb:7:in `authenticate' app/controllers/login_controller.rb:11:in `login' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `real_connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:389:in `connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:152:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:82:in `new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:82:in `mysql_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:262:in `send' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:262:in `connection_without_query_cache=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ query_cache.rb:54:in `connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:230:in `retrieve_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:78:in `connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1456:in `quote_bound_value' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `replace_bind_variables' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `gsub' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `replace_bind_variables' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1416:in `sanitize_sql_array' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1387:in `sanitize_sql' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1163:in `add_conditions!' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1096:in `construct_finder_sql' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:997:in `find_every' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:991:in `find_initial' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:417:in `find' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ deprecated_finders.rb:23:in `find_first_without_deprecation' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /deprecation.rb:94:in `find_first' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:1095:in `send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:1095:in `perform_action_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:632:in `call_filter' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:634:in `call_filter' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:619:in `perform_action_without_benchmark' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/benchmarking.rb:66:in `perform_action_without_rescue' /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/benchmarking.rb:66:in `perform_action_without_rescue' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/rescue.rb:83:in `perform_action' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:430:in `send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:430:in `process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:624:in `process_without_session_management_support' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/session_management.rb:114:in `process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:330:in `process' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/webrick_server.rb:113: in `handle_dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/webrick_server.rb:79:i n `service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/webrick_server.rb:63:i n `dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/webri ck.rb:59 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:342:in `new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/server.rb:39 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:342:in `new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' script/server:3 /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ vendor/mysql.rb:111:in `real_connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:389:in `connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:152:in `initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:82:in `new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/mysql_adapter.rb:82:in `mysql_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:262:in `send' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:262:in `connection_without_query_cache=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ query_cache.rb:54:in `connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:230:in `retrieve_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ connection_adapters/abstract/connection_specification.rb:78:in `connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1456:in `quote_bound_value' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `replace_bind_variables' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `gsub' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1427:in `replace_bind_variables' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1416:in `sanitize_sql_array' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1387:in `sanitize_sql' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1163:in `add_conditions!' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:1096:in `construct_finder_sql' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:997:in `find_every' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:991:in `find_initial' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ base.rb:417:in `find' /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/ deprecated_finders.rb:23:in `find_first_without_deprecation' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /deprecation.rb:94:in `find_first' app/models/user.rb:7:in `authenticate' app/controllers/login_controller.rb:11:in `login' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:1095:in `send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:1095:in `perform_action_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:632:in `call_filter' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:634:in `call_filter' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:619:in `perform_action_without_benchmark' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/benchmarking.rb:66:in `perform_action_without_rescue' /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/benchmarking.rb:66:in `perform_action_without_rescue' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/rescue.rb:83:in `perform_action' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:430:in `send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:430:in `process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/filters.rb:624:in `process_without_session_management_support' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/session_management.rb:114:in `process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_controlle r/base.rb:330:in `process' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/dispatcher.rb:41:in `dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/webrick_server.rb:113: in `handle_dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/webrick_server.rb:79:i n `service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/webrick_server.rb:63:i n `dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/webri ck.rb:59 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:342:in `new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/server.rb:39 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:342:in `new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support /dependencies.rb:495:in `require' script/server:3 Request Parameters: {"user_login"=>"openser", "user_password"=>"openserrw", "login"=>"Login >"} Show session dump --- return-to: / flash: !map:ActionController::Flash::FlashHash {} Response Headers: {"cookie"=>[], "Cache-Control"=>"no-cache"} Do anybody know what's meanning of this log? And how can I resolve it? Thank you very much!!!! Yin