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12 | $ openssl s_client -connect mth-k8s-02:10250 CONNECTED(00000003) depth=0 CN = mth-k8s-02@1489579192 verify error:num=18:self signed certificate verify return:1 depth=0 CN = mth-k8s-02@1489579192 verify return:1 --- Certificate chain 0 s:/CN=mth-k8s-02@1489579192 i:/CN=mth-k8s-02@1489579192 --- |