secure syslog

Hi everyone,

I need to securely forward firewall logs from a Sophos Firewall to a syslog server. I would appreciate any insights regarding the encryption methods Sophos uses for log transmission. Specifically, I have the following questions:

1. How does Sophos encrypt syslog transmissions?

2. What type of certificates are used for encryption?

3. Can I use publicly issued certificates (e.g., from a trusted Certificate Authority) to secure the log transmission?

Any guidance or best practices would be greatly appreciated.

Thanks in advance!