Issue
ESET business product in Limited Support status
This article applies to an ESET product version that is currently in Limited Support status and is scheduled to reach End of Life status soon.
For a complete list of supported products and support level definitions, review the ESET End of Life Policy for business products.
- Create custom certificates or Certification Authorities (CAs) for ESET Security Management Center (ESMC)
Solution
Prerequisites
- You need to have OpenSSL version 1.1.1g (for Windows) installed. The OpenSSL application allows you to create signed certificates.
Solution
- Generate the
.keyfile and cert for CA. Run the following code in the Command Prompt. You can substitute theesmc-custom-ca.keyandesmc-custom-ca.derfile name with your custom name.
openssl genrsa -out emsc-custom-ca.key 2048
openssl req -x509 -new -nodes -key emsc-custom-ca.key -sha256 -days 3650 -out emsc-custom-ca.der -outform der -subj "/CN=ESMC Custom CA"- Create the ESMC certificate extensions’ file.
echo authorityKeyIdentifier=keyid,issuer >esmc.ext
echo basicConstraints=CA:FALSE >>esmc.ext
echo keyUsage=digitalSignature,keyEncipherment,dataEncipherment >>esmc.ext
echo subjectAltName=DNS:* >>esmc.extkeyUsage and subjectAltName values
Make sure that you use the values provided in the example above:
– keyUsage=digitalSignature,keyEncipherment,dataEncipherment
– Subject Alternative Name (SAN) should be defined as DNS:* for ESMC Server and for all Agents: subjectAltName=DNS:*
- Generate key and cert for ESMC Server and export to
.pfxfile. Replace thepasswordwith a proper password.
openssl genrsa -out esmc-server.key 2048
openssl req -new -key esmc-server.key -subj "/CN=ESMC Server" | openssl x509 -req -CA emsc-custom-ca.der -CAkey emsc-custom-ca.key -CAform DER -out esmc-server.crt -days 1825 -sha256 -extfile esmc.ext
openssl pkcs12 -export -out esmc-server.pfx -inkey esmc-server.key -in esmc-server.crt -passout pass:passwordCommon Name (CN) string
The Common Name (CN) must contain one of these strings: “server“or “agent“, depending on which Certificate Request you want to create.
- Generate key and cert for ESMC Agent and export to
.pfxfile. Replace thepasswordwith a proper password.
openssl genrsa -out esmc-agent.key 2048
openssl req -new -key esmc-agent.key -subj "/CN=ESMC Agent" | openssl x509 -req -CA emsc-custom-ca.der -CAkey emsc-custom-ca.key -CAform DER -out esmc-agent.crt -days 1825 -sha256 -extfile esmc.ext
openssl pkcs12 -export -out esmc-agent.pfx -inkey esmc-agent.key -in esmc-agent.crt -passout pass:passwordLast Updated: Jul 21, 2021
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