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Try to get certificate for my mail server but failed

richardxu98 September 18, 2018, 8:22pm 7

Ubuntu 16.04 on aws

cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION=“Ubuntu 16.04.4 LTS”

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