Configure the Management Server¶

Perform the following configuration steps on the management server if you have installed PLOSSYS 5 with separate management server or in a cluster.

Configure Elasticsearch¶

Open the firewall for Elastic Stack. For this, change to the SEAL Elastic Stack - 7.16.1.85 - rpm/server directory and start the script for opening the firewall ports:
```
cd "SEAL Elastic Stack - 7.16.1.85 - rpm/server"
```
```
sudo sh firewall.sh
```
Edit the following file on the management server:
```
/etc/elasticsearch/elasticsearch.yml
```

Add the following lines:

network.host: 0.0.0.0
discovery.type: single-node

Save the file.
Edit the following file on the management server:
```
/etc/elasticsearch/jvm.options
```
Search for the following lines and update the parameters in order to set the Max_Heap_Size where <ram_mb> is to be at least 50 % of the server's RAM:
```
–Xmx<ram_mb>m
–Xms<ram_mb>m
```
Hint - same value

With –Xmx<ram_mb>m and –Xms<ram_mb>m, the same value has to be used for <ram_mb>. Otherwise, Elasticserach will not start!
Example - 2048 MB
```
–Xmx2048m
–Xms2048m
```
Save the file.
Execute the following command. It opens an editor with an empty file.
```
sudo systemctl edit elasticsearch.service
```
Add the following lines to the file:
```
[Service]
Restart=always
RestartSec=60
```
Save the file.
Restart the service for Elasticsearch:
```
sudo systemctl restart elasticsearch
```

In the /opt/seal/etc/kibana.yml file, activate the following setting:
```
server.host: 0.0.0.0
```
Restart the following service for Kibana:
```
sudo systemctl restart seal-kibana
```