c:\OpenVPN\bin>openssl s_client -connect pop.gmail.com:995
WARNING: can't open config file: /usr/local/ssl/openssl.cnf
CONNECTED(00000740)
depth=1 C = US, O = Google Trust Services, CN = GTS CA 1O1
verify error:num=20:unable to get local issuer certificate
---
Certificate chain
0 s:/C=US/ST=California/L=Mountain View/O=Google LLC/CN=pop.gmail.com
i:/C=US/O=Google Trust Services/CN=GTS CA 1O1
1 s:/C=US/O=Google Trust Services/CN=GTS CA 1O1
i:/OU=GlobalSign Root CA - R2/O=GlobalSign/CN=GlobalSign
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=/C=US/ST=California/L=Mountain View/O=Google LLC/CN=pop.gmail.com
issuer=/C=US/O=Google Trust Services/CN=GTS CA 1O1
---
No client certificate CA names sent
Peer signing digest: SHA256
Server Temp Key: ECDH, P-256, 256 bits
---
SSL handshake has read 3238 bytes and written 433 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-GCM-SHA256
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-AES128-GCM-SHA256
Session-ID: 0250AA148D38FD752AE43C20F6E7FA4F99A3ABBA2B42AE7D96F3A1C91C687950
Session-ID-ctx:
Master-Key: 09B23EBAA65080C16150884952E4CEDB6B89AC246EC3FBB21FC86872DA3ACA4F
CD53702E97282CC6EC6B0269CB891F23
Key-Arg : None
PSK identity: None
PSK identity hint: None
SRP username: None
TLS session ticket lifetime hint: 100800 (seconds)
TLS session ticket:
0000 - 01 83 ab 00 79 09 65 62-06 e5 5b 4d 14 72 6f 99 ....y.eb..[M.ro.
0010 - 54 69 39 68 86 49 df e4-ad 1a d9 e5 5d 8e 2d 25 Ti9h.I......].-%
0020 - 80 28 28 e0 af f9 6f 09-32 cd 84 65 35 2b a4 02 .((...o.2..e5+..
0030 - ce 40 9c bf ce 18 cc c1-0a 35 40 6b 51 f2 68 20 .@.......5@kQ.h
0040 - 84 7b 8d 37 68 9c 0a b7-87 0b 35 3c 62 1a 53 43 .{.7h.....5<b.SC
0050 - ed 33 b2 c0 97 67 9a a4-39 48 db 5c 09 9c e7 54 .3...g..9H.\...T
0060 - 65 fd 99 19 f5 e4 1a f5-c7 9b 0e 91 1e 1e 5b a0 e.............[.
0070 - d4 31 ab b5 fd 8f 56 05-18 21 ec 9e ed 78 3e 88 .1....V..!...x>.
0080 - 2c a2 03 3a 42 64 b5 fc-c0 38 7c 20 73 e8 9d 72 ,..:Bd...8| s..r
0090 - b8 40 1e de 33 1e 11 0e-75 2f 36 f8 9d 16 b4 37 .@..3...u/6....7
00a0 - a8 82 e8 e1 e9 63 52 f2-fa 3e 3d 11 d1 e9 69 ea .....cR..>=...i.
00b0 - 45 0f 7e 94 be cd a5 69-93 bc 7f 30 66 7f 37 f8 E.~....i...0f.7.
00c0 - 53 b0 25 ec b4 94 15 99-ec c8 dc 83 f3 ff b3 42 S.%............B
00d0 - bd 7d 29 27 5c 4f 42 c2-63 4a fc 1c 9b .})'\OB.cJ...
Start Time: 1586283410
Timeout : 300 (sec)
Verify return code: 20 (unable to get local issuer certificate)
--- |
