Http 1.1 502 Proxy Error
a proxy server. The problem is typically caused for one of two reasons: 1 – The Internet Security and Acceleration (ISA) is configured to throw 502 proxy error apache a proxy error to help guard against external or internally-based Internet threats, and how to fix 502 proxy error 2- The client or server computers are misconfigured or using outdated software. What is a 502 Proxy Error? A 502 proxy 502 proxy error the proxy server received an invalid response from an upstream server error is typically thrown in the HTTP cycle. When the error occurs, a server (does not have to be a Web server) is filling a role similar to a proxy or a gateway http 502 proxy error server. When a client computer sends an HTTP request (typically a web browser, but can be any software application that is capable of making an HTTP request), it will pass through the server in order to obtain access to the desired URL. The proxy or gateway subsequently receives a 502 error, or invalid response, from the server located “upstream” in the attempt to fulfill the client request.
Proxy Error Reading From Remote Server
The majority of the time the error is thrown, the upstream server is functioning appropriately. The proxy or gateway and upstream servers just cannot agree on the appropriate protocol for exchanging the information requested in the original client HTTP request. In many of these cases, either the proxy or upstream server are not configured correctly or are running incompatible software. Why Does a 502 Proxy Error Get Thrown? During a typical web browsing session, the following is an example of the classic HTTP cycle when a client computer and web server are communicating: Client Computer: The IP address of the desired website will be obtained from the URL of the site from the DNS server. Client Computer: The computer obtains an IP socket connection to the desired IP address and then sends an HTTP data stream through the IP address. Web Server: HTTP data is sent back to the client computer in response to the original HTTP request. The HTTP response will include status codes and other useful information for the client computer. Client Computer: If there is an error in the client’s request or server’s ability to respond, there will be an HTTP error code of 502 included
502 Proxy Error. Forefront Tmg Denied The Specified Uniform Resource Locator
years ago Closed 9 years ago #4425 closed defect (worksforme) HTTP/1.1 502 Proxy Error Reported by: jjsch Owned by: lschiere Milestone: Component: unclassified Version: 2.3.1 Keywords: Cc: Description When I try to connect to MSN https://developer.pidgin.im/ticket/4425 in Linux using the HTTP proxy, the ISA server refuse the http://stackoverflow.com/questions/9428675/http-1-1-502-proxy-error-in-j2me connection with: HTTP/1.1 502 Proxy Error. (16:56:36) connection: Connecting. gc = 0x84da398 (16:56:36) msn: new httpconn (0x848af68) (16:56:36) dns: DNS query for '192.168.250.2' queued (16:56:36) dns: Created new DNS child 6196, there are now 1 children. (16:56:36) dns: Successfully sent DNS request to child proxy error 6196 (16:56:36) dns: Got response for '192.168.250.2' (16:56:36) dnsquery: IP resolved for 192.168.250.2 (16:56:36) proxy: Attempting connection to 192.168.250.2 (16:56:36) proxy: Connecting to messenger.hotmail.com:1863 via 192.168.250.2:8080 using HTTP (16:56:36) proxy: Connection in progress (16:56:36) proxy: Connected to messenger.hotmail.com:1863. (16:56:36) proxy: Using CONNECT tunneling for messenger.hotmail.com:1863 user_name: jschiavoni (16:56:36) proxy: Proxy server replied with: HTTP/1.1 502 Proxy 502 proxy error Error ( El puerto SSL (capa de sockets seguros) especificado no está permitido. El servidor ISA no está configurado para permitir peticiones SSL de este puerto. La mayoría de los exploradores web utilizan el puerto 443 para peticiones SSL. ) Via: 1.1 STARGATE Connection: close Proxy-Connection: close Pragma: no-cache Cache-Control: no-cache Content-Type: text/html Content-Length: 864 (16:56:36) proxy: Connection attempt failed: HTTP proxy connection error 502 (16:56:36) msn: Connection error: HTTP proxy connection error 502 (16:56:36) msn: Connection error from Notification server (messenger.hotmail.com): Unable to connect (16:56:36) account: Disconnecting account 0x84e5090 (16:56:36) connection: Disconnecting connection 0x84da398 (16:56:36) msn: destroy httpconn (0x848af68) (16:56:36) connection: Destroying connection 0x84da398 Oldest first Newest first Threaded Comments only Change History (3) comment:1 follow-up: ↓ 2 Changed 9 years ago by datallah pending changed from 0 to 1 According to the above output, your proxy doesn't allow an SSL connection on port 1863. Try using the "HTTP Method" checkbox in the MSN account settings. comment:2 in reply to: ↑ 1 Changed 9 years a