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2021年06月08日(火) 旧暦 [n年日記] [更新:"2021/06/08 13:31:59"]

#1 [security] Let's note certificate updated

(before sendmail restart)
SX3@makoto 22:24:29/210608(~)%  foreach i (587)
echo $i;  openssl x509 -text -noout -in <(openssl s_client -starttls smtp -connect imap4.z.example.com:$i ) |grep -A3 Valid
end  
587
depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = imap4.example.com
verify return:1
250 HELP
DONE
        Validity
            Not Before: Mar 12 11:22:45 2021 GMT
            Not After : Jun 10 11:22:45 2021 GMT
        Subject: CN = imap4.example.com
sendmail restarted
SX3@makoto 22:24:38/210608(~)%  foreach i (587)
echo $i;  openssl x509 -text -noout -in <(openssl s_client -starttls smtp -connect imap4.z.example.com:$i ) |grep -A3 Valid
end
587
depth=2 C = US, O = Internet Security Research Group, CN = ISRG Root X1
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = example.com
verify return:1
250 HELP
DONE
        Validity
            Not Before: Jun  8 11:44:05 2021 GMT
            Not After : Sep  6 11:44:05 2021 GMT
        Subject: CN = example.com
587 ports need -starttls smtp argument


2021年06月02日(水) 旧暦 [n年日記] [更新:"2004/08/09 23:43:33"]

#1 [LetsEncrypt] check the expiration date of certificate

local server using 587 port (starttls)
10:42:34/210602(~)% foreach i (587)
echo $i;  openssl x509 -text -noout -in <(openssl s_client  -connect imap.example.com:$i -starttls smtp) |& grep -A3 Validity
end
587
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = imap.example.com
verify return:1
250 HELP
DONE
        Validity
            Not Before: Mar 12 11:22:45 2021 GMT
            Not After : Jun 10 11:22:45 2021 GMT
        Subject: CN = imap.example.com
Office server
10:48:01/210602(~)% foreach i (465  993 995)
echo $i;  openssl x509 -text -noout -in <(openssl s_client  -connect mail.domain.example.com:$i ) |& grep -A3 Validity
end
465
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = domain.example.com
verify return:1
DONE
        Validity
            Not Before: Mar 12 07:10:42 2021 GMT
            Not After : Jun 10 07:10:42 2021 GMT
        Subject: CN = domain.example.com
993
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = domain.example.com
verify return:1
DONE
        Validity
            Not Before: Mar 12 07:10:42 2021 GMT
            Not After : Jun 10 07:10:42 2021 GMT
        Subject: CN = domain.example.com
995
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = domain.example.com
verify return:1
DONE
        Validity
            Not Before: Mar 12 07:10:42 2021 GMT
            Not After : Jun 10 07:10:42 2021 GMT
        Subject: CN = domain.example.com



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