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To resolve this problem, follow these steps on your Exchange 2000 or Exchange 2003 back-end server. Alternatively, follow these steps on another computer that has access to the same domain controller and the same global catalog server.
NoteThis procedure requires the Exchange Server Fix Toolbox
1.Start the the Exchange Server Fix Toolbox
Right-clickYour_back-end_Exchange_server, and then clickProperties.
Clicknetworkaddressin theAttributeslist, and then clickEdit.
Add a new value forncacn_ip_tcp. Use the FQDN of the server instead of the NetBIOS name or the host name of the server.
The syntax for this value isncacn_ip_tcp:FQDN. For example, if your Exchange back-end server has a host name of EXCHANGE1 and the FQDN is EXCHANGE1.domain.com, use the following value forncacn_ip_tcp:ncacn_ip_tcp:EXCHANGE1.domain.com
Remove the oldncacn_ip_tcpvalue that contains the NetBIOS name or the host name of the back-end server.
Apply this change.
Because your Exchange computer may change this value back during a failover or a system attendant restart, configure the following registry value on both nodes of the cluster:
Right-clickUpdateProtocols, clickModify, type0in theValue databox, and then clickOK.
If your network uses a Hosts file on the back-end cluster node, modify it by using the following order of entry:
Restart the Exchange services on the back-end cluster node.
If there are multiple domain controllers, wait for replication to occur before you try to log on from the front-end server. If the problem is not resolved after replication is complete, restart the IIS Admin Service on the front-end server.
error 500 mostly means that the server cannot be reached or has an internal error. if you manage to go on internet normally with your device, the problem isn't with you, but with the server you are trying to contact.
The Web server (running the Web Site) encountered an unexpected condition that prevented it from fulfilling the request by the client (e.g. your Web browser or our CheckUpDown robot) for access to the requested URL. This is a 'catch-all' error generated by the Web server. Basically something has gone wrong, but the server can not be more specific about the error condition in its response to the client. In addition to the 500 error notified back to the client, the Web server should generate some kind of internal error log which gives more details of what went wrong. It is up to the operators of the Web server site to locate and analyse these logs.
500 errors in the HTTP cycle
Any client (e.g. your Web browser or our CheckUpDown robot) goes through the following cycle when it communicates with the Web server:
Obtain an IP address from the IP name of the site (the site URL without the leading 'http://'). This lookup (conversion of IP name to IP address) is provided by domain name servers (DNSs).
Open an IP socket connection to that IP address.
Write an HTTP data stream through that socket.
Receive an HTTP data stream back from the Web server in response. This data stream contains status codes whose values are determined by the HTTP protocol. Parse this data stream for status codes and other useful information.
This error occurs in the final step above when the client receives an HTTP status code that it recognises as '500'. (Last updated: March 2012).
Fixing 500 errors - general
This error can only be resolved by fixes to the Web server software. It is not a client-side problem. It is up to the operators of the Web server site to locate and analyse the logs which should give further information about the error.
Fixing 500 errors - CheckUpDown
Please contact us (email preferred) whenever you encounter 500 errors on your CheckUpDown account. We then have to liaise with your ISP and the vendor of the Web server software so they can trace the exact reason for the error. Correcting the error may require recoding program logic for the Web server software, which could take some time.
Error 500 to 504 are usually nothing to do with your system, they are errors created by the server you are trying to connect to.
A server (not necessarily a Web server) is acting as a
gateway or proxy to fulfil the request by the client (e.g. your Web
browser or our CheckUpDown robot) to access the requested URL. This
server did not receive a timely response from an upstream server it
accessed to deal with your HTTP request.
hi Fixing 500 errors - general This error can only be resolved by fixes to the Web server
software. It is not a client-side problem. It is up to the operators of the Web
server site to locate and analyse the logs which should give further
information about the error.Fixing 500 errors - CheckUpDownPlease contact us (email preferred) whenever you encounter 500
errors on your CheckUpDown account. We then have to liaise with your ISP and
the vendor of the Web server software so they can trace the exact reason for
the error. Correcting the error may require recoding program logic for the Web
server software, which could take some time. try sending email of your problems tosupport.microsoft.com.hope this helps sorry it sounds so complicated.
Internal Server Error 500 is usually caused by either a malformed cgi script or an invalid directive in an .htaccess file located either in the same directory as the page throwing an error, or in any directory above it.
Have you recently uploaded or editted an .htaccess file that includes mod_php related directives such as php_value ..., php_flag ...?