On a similar note, I discovered my Buffalo NAS aren't able to use
STARTTLS to send health reports. They are Linkstation 210 using
current firmware from Buffalo.
I recently did a full upgrade of the ASSP host (Ubuntu) and ASSP.
This is logged, but I'm not sure how to tell what protocol is in use.
Jun-20-23 17:56:11 [Worker_1] 104.188.144.67 error: Couldn't upgrade to TLS for client 104.188.144.67: SSL accept attempt failed error:0A000102:SSL routines::unsupported protocol
SSL key cipher list (default)
SSL_version (SSLv23:!SSLv3:!SSLv2)
Net::SMTP::SSL module version 1.02 installed and available
IO::Socket::SSL module version 2.074 installed - https and TLS/SSL
is possible
Found valid certificate and private key file - https and TLS/SSL
is available
The underlying SSL library Net::SSLeay version 1.92 uses OpenSSL
3.0.2 15 Mar 2022
- Robert
I currently have the default of "SSLv23:!SSLv3:!SSLv2" for ssl_version. Various online MX health checkers report my servers as not supporting TLS.
Should I change my ssl_version? Possible add a ":TLSv1_3" to the end?
--Daniel
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-- Robert K Coffman Jr. Info From Data Corp. 3307249000 supp...@infofromdata.com
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