“Troubleshooting Error 18456 State 113 Rejected Connections in DoSGuard”

Connections Rejected by DoSGuard (Error 18456 State 113)
Overview
DoSGuard is a feature of Microsoft’s Azure Database that is designed to protect the server from malicious attempts to overload it with requests. This protection can cause valid connections to be blocked and rejected, resulting in an error code 18456 state 113. This article will discuss what this error means and how to troubleshoot and resolve the issue.

What is DoSGuard
DoSGuard is a feature of Microsoft’s Azure Database that is designed to protect the server from malicious attempts to overload it with requests. It monitors the incoming requests and will block connections that appear to be malicious. This is done to protect the server from being overloaded by malicious users and to ensure that genuine requests are not blocked.

What is Error 18456 State 113
Error 18456 State 113 is an error message that can occur when a connection is blocked by DoSGuard. This error message indicates that the connection was blocked because it was deemed to be malicious or an attempted overload. It does not indicate that the connection was actually malicious, but rather that the connection was blocked because it was deemed suspicious.

Troubleshooting and Resolving the Issue
The first step in troubleshooting and resolving the issue is to identify the source of the connection attempt. This can be done by examining the logs to determine which IP address the connection attempt originated from. If the source of the connection attempt is identified, then it can be blocked using the Azure Portal or using Windows Firewall.

If the source of the connection attempt is not identified, then it may be necessary to temporarily disable DoSGuard. This can be done by setting the DoSGuard threshold to a lower value in the Azure Portal. This will allow more connections to be accepted, but it will also increase the risk of malicious connections being accepted. It is important to keep in mind that disabling DoSGuard should only be done as a temporary measure and should be re-enabled once the issue is resolved.

Conclusion
Error 18456 State 113 is an error message that can occur when a connection is blocked by DoSGuard. This error message indicates that the connection was blocked because it was deemed to be malicious or an attempted overload. Troubleshooting and resolving the issue can be done by identifying the source of the connection attempt and either blocking it or temporarily disabling DoSGuard. It is important to remember that DoSGuard should only be disabled as a temporary measure and should be re-enabled once the issue is resolved.
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Connections rejected by DoSGuard (error 18456 state 113)
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1. Error 18456 state 113
2. DoSGuard
3. DOS