- You receive the warning message Using unencrypted connection! Please configure the webserver to use HTTPS when accessing ESET PROTECT via HTTP. This occurs after the ESET PROTECT installation
- Use an existing certificate
- Create a new certificate
- Move the certificate file (for example
certificate_file.pfx) to a Tomcat configuration directory (for example
- Open the
Server.xmlfile located in
/etc/tomcat/. The Location may vary depending on the Linux distribution.
- If there is no
Server.xml, copy the following string into the
Server.xml. Use your own values for
- If there is no
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslEnabledProtocols="TLSv1.2,TLSv1.3" ciphers="TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_256_GCM_SHA384, TLS_RSA_WITH_AES_256_CBC_SHA" keystoreFile="/etc/tomcat/certificate_file.pfx" keystorePass="Secret_Password_123" keystoreType="PKCS12" />
<Connectoris present after
Server.xml, replace the values of parameters listed below with your values:
keystoreFile – Provide the full path to the certificate file (
.keystore, or other). If you use a non-JKS certificate (for example, a
.pfx file), delete the
keyAlias (it is present in
Server.xml by default) and add the proper
keystorePass – Provide certificate passphrase.
keystoreType – Specify the certificate type.
- Restart the Tomcat service (
sudo systemctl tomcat restart).
- If you use a
.keystorefile, use the path to the file (
keystoreFile="/etc/tomcat/tomcat.keystore") and define
keyAlias="tomcat") instead of
- If you want to disable HTTP:
- If you use a
<!-- <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
Use a secure HTTPS/SSL connection for ESET PROTECT.
- Create a keystore with an SSL certificate. You must have Java installed.
Java includes the keytool, which enables you to create a certificate via command line. You must generate a new certificate for each tomcat instance (if you have multiple tomcat instances) to ensure that if one certificate is compromised, other tomcat instances will remain secure.
Below is a sample command to create a
keystore with an SSL certificate:
Navigate to the exact location of the keytool file, for example
/usr/lib/jvm/”java version”/jre/bin (the directory depends on the OS and Java version) and run the command:
/etc/tomcat/tomcat.keystoreis only an example, choose your own secure and accessible destination.
- Export the certificate from the
keystore. Below is a sample command to export the certificate sign request from the
- Get the SSL certificate signed with the Root Certificate Authority (CA) of your choice.
You can proceed to step 6 if you plan to import a Root CA later. If you choose to proceed this way your web browser may display warnings about a self-signed certificate and you will need to add an exception to connect to ESET PROTECT via HTTPS.
- Import the root certificate and intermediate certificate of your CA to your
keystore. These certificates are usually made available by the entity that signed your certificate. It is necessary because the certificate reply is validated using trusted certificates from the
sudo keytool -import -alias root -file “/etc/Tomcat/root.crt” -keystore “/etc/tomcat/tomcat.keystore”
sudo keytool -import -alias intermediate -file “/etc/Tomcat/
intermediate.crt.pem” -keystore “/etc/tomcat/tomcat.keystore”
- When you receive the signed certificate with the Root CA, import the public key of CA and the certificate (
tomcat.cer) into your
keystore. Below is a sample command that imports a signed certificate into the
If you want to use an already existing certificate (for example company certificate), follow these instructions.
- Edit the
server.xmlconfiguration file so that the tag
<Connectoris written similar to the example below:
<Connector server="OtherWebServer" port="443" protocol="org.apache.coyote.http11.Http11NioProtocol" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" keystoreFile="/etc/tomcat/tomcat.keystore" keystorePass="yourpassword"/>
This modification also disables non-secure Tomcat features, leaving only HTTPS enabled (
scheme= parameter). For security reasons, you may also need to edit
tomcat-users.xml to delete all Tomcat users and change ServerInfo.properties to hide the identity of the Tomcat.
- Restart the Apache Tomcat service. ESET PROTECT may use the service name
sudo systemctl tomcat restart