You could always test the connection.  For example using openssl ...

openssl s_client -connect sentinel.domain.com:1443 -tls1_2

The 8.6.1 syslog event source server supports both TLS 1.2 and 1.3:

# nmap -n --script=ssl-enum-ciphers --script=ssl-cert -p 1443 sentinel.example.com
Starting Nmap 7.92 ( https://nmap.org ) at 2024-07-03 16:30 CEST
Nmap scan report for sentinel.example.com (172.30.1.28)
Host is up (0.00061s latency).

PORT STATE SERVICE
1443/tcp open ies-lm
| ssl-enum-ciphers:
| TLSv1.2:
| ciphers:
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (dh 2048) - A
| TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (dh 2048) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (secp256r1) - A
| TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (secp256r1) - A
| TLS_RSA_WITH_AES_128_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_AES_128_CBC_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_128_GCM_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_256_CBC_SHA (rsa 2048) - A
| TLS_RSA_WITH_AES_256_CBC_SHA256 (rsa 2048) - A
| TLS_RSA_WITH_AES_256_GCM_SHA384 (rsa 2048) - A
| compressors:
| NULL
| cipher preference: client
| TLSv1.3:
| ciphers:
| TLS_AKE_WITH_AES_128_GCM_SHA256 (secp256r1) - A
| TLS_AKE_WITH_AES_256_GCM_SHA384 (secp256r1) - A
| cipher preference: client
|_ least strength: A

Thanks!

   I use this command , it show the message like below. it seem indeed support TLS1.2

=========================

openssl s_client -connect 192.168.0.227:1443 -tls1_2
CONNECTED(00000003)
depth=0 O = broker, CN = sentinelC
verify error:num=18:self signed certificate
verify return:1
depth=0 O = broker, CN = sentinelC
verify return:1
---
Certificate chain
0 s:/O=broker/CN=sentinelC
i:/O=broker/CN=sentinelC
---
Server certificate
-----BEGIN CERTIFICATE-----
MIIC6zCCAdOgAwIBAgIEHhbg2jANBgkqhkiG9w0BAQsFADAlMQ8wDQYDVQQKEwZi
cm9rZXIxEjAQBgNVBAMTCXNlbnRpbmVsQzAgFw0xNjA3MTgwMzM4MzJaGA8yMTE2
MDYyNDAzMzgzMlowJTEPMA0GA1UEChMGYnJva2VyMRIwEAYDVQQDEwlzZW50aW5l
bEMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCBuFybMgJe0CEJwjRf
caxWVcHDEkJwP9uHkgSS9t3U6JbniShqzJnKJskkViB2VSx39iCM7VHUEHD7lkta
m0nJExMagyJIW9EpyyRseHgQvFZgDKpujPq7ybqsLVQxYOeRGE4We54Uiwk/GEzS
ByvdwulNaGkySkUhGAm0x/g/28opw14zXJ/vT/OYQjZrXhsJhn+c9i2Ie/VwJkBO
1rIpDMIajBQ1P/6wQICRrsuGJqYAciyokayzCoQzyGbl8B3ALIrM85uLdjPK4Y4H
1fgMRwWtTNJmnLqvWFvheC6rn1WSBawyI+G4Rr9IDMuDoc2qVwmvOWKPSKReZSRJ
suHbAgMBAAGjITAfMB0GA1UdDgQWBBRrk9cP4TH50QqjNsfUKs6/IuGynTANBgkq
hkiG9w0BAQsFAAOCAQEAHHr30rphpne/DaWjjVTAQujBSeXQ7DUO7opB+hXg3VPQ
CsCzB8580bvSPrVfBREkGFIE7rFnB+j6a4X57f9DnTvergSNE/OnlQOAMwBeHNI8
qDOmGLTzoY9OQlQPFFShRZoqCgXLeogT/DmZdJBGntsOhGIrv5kakQgQyj5HuHvP
6CIVi/hp9uEXqnqjFql7/elmTqBIQlmt8cSTt1cr/F++VdhosP+8Uc8oZOoVrvu6
Qt0p1juHmoH1CnLflE4Ur/RyGK4gytfvbbao8D5FpT3tPHjdsg4hqXzcDjTWkUZN
LWloNqNliSCCvRUSOjIaIu7tdXU0mqcpt1Cf2Flflg==
-----END CERTIFICATE-----
subject=/O=broker/CN=sentinelC
issuer=/O=broker/CN=sentinelC
---
No client certificate CA names sent
Peer signing digest: SHA512
Server Temp Key: ECDH, P-256, 256 bits
---
SSL handshake has read 1250 bytes and written 419 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : ECDHE-RSA-AES256-GCM-SHA384
Session-ID: F8CBA36F93EEA0E9274DF49DC678D48DD867573A18A1603C51665A5F77195CAC
Session-ID-ctx:
Master-Key: 0BA97715235AB8B2933847BFC7CD65AFB3FAE30C7EC137DED6ABF5547CFE1015 1F9334F1FD1052A9FEDED323ABBB16FC
Key-Arg : None
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1720052743
Timeout : 7200 (sec)
Verify return code: 18 (self signed certificate)
---