Disabling the DEM plug-in for HTTP Server

You can disable DEM for HTTP server in both cloud and on-premises environments. Follow the steps.

Disabling the DEM plug-in for HTTP Server in cloud environments
Disabling the DEM plug-in for HTTP Server in on-premises environments

Disabling the DEM plug-in for HTTP Server in cloud environments

To disable DEM on HTTP server in cloud environments, do the following steps:

Open the deployment yaml file and set IBM_APM_DEM_ENABLED to false:

apiVersion: v1
kind: ConfigMap
metadata:
  name: dem-config
data:
  dem.conf: |2
    IBM_APM_DEM_ENABLED = false
    JAEGER_SAMPLER_PARAM = 0.01
    JAEGER_SAMPLER_TYPE = "probabilistic"

Update the Kubernetes ConfigMap resource by using the following command:
```
 kubectl apply -f env-config.yaml
```
Restart the HTTP Server pods.

Disabling the DEM plug-in for HTTP Server in on-premises environments

To disable DEM on HTTP server in on-premises environments, you can use either of the following ways.

Disabling DEM plug-in for HTTP Server with the script

Go to the directory /opt/IBM/DEM, and run unconfigDEMHTTPServer.sh with parameters:
- [-hc <HTTPD_CONFIG_FILE>]: Required, such as /opt/IBM/IHS/conf/httpd.conf.
- [-hr <HTTPD_ROOT_DIR>]: Required, such as /opt/IBM/IHS.
Restart the HTTP Server.

Disabling DEM plug-in for HTTP Server manually

Edit the HTTP Server config file to remove the following line.
```
 LoadModule dem_module $HTTPD_ROOT/demmodule/mod_dem.so
```
Remove the directory demmodule in the HTTP Server root directory.
Edit the file /opt/IBM/DEM/DEM_ALIAS.txt to remove the following line.
```
 http_config_file:alias
```
Restart the HTTP Server.