MAX_INCOMPLETE_CONNECTIONS configuration parameter

Use the MAX_INCOMPLETE_CONNECTIONS configuration parameter to specify the maximum number of incomplete connections in a session.

onconfig.std value
MAX_INCOMPLETE_CONNECTIONS 1024
units
Number of incomplete connections
takes effect
After you edit your onconfig file and restart the database server.
When you reset the value dynamically in your onconfig file by running the onmode -wf command.
When you reset the value in memory by running the onmode -wm command.

Usage

After the number specified in the MAX_INCOMPLETE_CONNECTIONS configuration parameter is reached, an error message is written in the online message log stating that the server might be under a Denial of Service attack. See also information about the LISTEN_TIMEOUT configuration parameter, which specifies the number of seconds the server waits for a connection. .

Depending on the machine capability of holding the threads (in number), you can configure MAX_INCOMPLETE_CONNECTIONS to a higher value. Depending on the network traffic, you can also set the LISTEN_TIMEOUT configuration parameter, which specifies the number of seconds the server waits for a connection, to a lower value to reduce the chance that an attack can reach the maximum limit.


Copyright© 2019 HCL Technologies Limited