If the certificate expires, you cannot connect to the Syslog server.Obtaining a client certificate for the Syslog protocol
Procedure
Create a private key (.key file).
Create a public key (.csr file).
Acquire the certificate by Certificate Authority signing the created public key.
If the certificate expires, you cannot connect to the Syslog server.
On Windows command prompt, set the current directory to the directory where the PKCS#12 format client certificate is output.
Store the private key (.key file) and client certificate to this folder and execute the following command with an example.
Folder which the PKCS#12 format client certificate is output: C:\key
File name of a private key: client.key
File name of a client certificate: client.crt
C:\key>c:\openssl\bin\openssl pkcs12 -export -in client.crt -inkey client.key -outclient.p12
Set the password. You can use a password of up to 128 Alphanumeric characters and 31 symbols (! # $ % & ' ( ) * + ,- . / : ; < = > ? @ [ \ ] ^ _ ` { | }~ ).
If you use more than 50 alphabetic characters (letters), use the following command option example, where XXXX...X is the password:
C:\key>c:\openssl\bin\openssl pkcs12 -export -in client.crt client.key -out-inkey client.p12 -password pass:XXXX...X
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