서버 TSL(프로토코) 지원여부 확인하기

#openssl

openssl s_client -connect domain:port -tls1

옵션	설명
-tls1_2	just use TLSv1.2
-tls1_1	just use TLSv1.1
-tls1	just use TLSv1
-dtls1	just use DTLSv1

 

#웹
https://www.cdn77.com/tls-test

TLS Checker - Instant Results

예시 > openssl s_client -connect google.com:443 -tls1

CONNECTED(00000005)

depth=2 OU = GlobalSign Root CA - R2, O = GlobalSign, CN = GlobalSign

verify return:1

depth=1 C = US, O = Google Trust Services, CN = GTS CA 1O1

verify return:1

depth=0 C = US, ST = California, L = Mountain View, O = Google LLC, CN = *.google.com

verify return:1

---

Certificate chain

 0 s:/C=US/ST=California/L=Mountain View/O=Google LLC/CN=*.google.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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BCj5zw==

-----END CERTIFICATE-----

subject=/C=US/ST=California/L=Mountain View/O=Google LLC/CN=*.google.com

issuer=/C=US/O=Google Trust Services/CN=GTS CA 1O1

---

No client certificate CA names sent

Server Temp Key: ECDH, X25519, 253 bits

---

SSL handshake has read 4435 bytes and written 219 bytes

---

New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-SHA

Server public key is 2048 bit

Secure Renegotiation IS supported

Compression: NONE

Expansion: NONE

No ALPN negotiated

SSL-Session:

    Protocol  : TLSv1

    Cipher    : ECDHE-RSA-AES128-SHA

    Session-ID: 027A1F0F269734675A5679A42812313BCFF78681902EB4F8587B16CDE682EBAF

    Session-ID-ctx: 

    Master-Key: 6079AEC5AFAA41D08E380C64F28A6F13BCB70A2B1774F814EB13841A02EC7A3E120FE24C547C814E6714ED17C9BF6FC2

    TLS session ticket lifetime hint: 100800 (seconds)

    TLS session ticket:

    0000 - 01 55 47 f5 e3 80 dc bc-06 e3 27 72 b0 ee f2 3d   .UG.......'r...=

    0010 - 21 7f b2 de 1f fb 33 ce-11 e6 96 cb e5 56 9d c5   !.....3......V..

    0020 - c7 68 45 1b db c1 50 ee-2d fa 69 b7 ab 7b e1 31   .hE...P.-.i..{.1

    0030 - b4 6d e1 6f 34 55 72 87-38 d6 10 74 0b 76 76 ad   .m.o4Ur.8..t.vv.

    0040 - 42 40 a0 9c 83 41 be ce-a2 36 b2 2b 51 c3 36 89   B@...A...6.+Q.6.

    0050 - 37 8a d6 48 0f db 5e f3-e8 21 be 99 20 50 ad ad   7..H..^..!.. P..

    0060 - c1 01 a3 e9 c5 66 c7 61-3e a4 dd 36 e7 9d b1 98   .....f.a>..6....

    0070 - fc 21 49 c6 83 ac 9c b7-fb 49 a5 cb a0 ff 78 0c   .!I......I....x.

    0080 - f4 c6 02 bc f7 c4 ea f6-33 b2 54 43 de fb c6 ab   ........3.TC....

    0090 - ae 8e 29 34 af 93 a2 d9-c9 d6 93 4b 2b 2a c9 c9   ..)4.......K+*..

    00a0 - d6 f2 27 4a f0 43 3c 86-46 38 c1 0c b8 5c 01 37   ..'J.C<.F8...\.7

    00b0 - ab 64 e2 6d 1e f5 3b 94-f3 0a d1 13 29 e4 0d d0   .d.m..;.....)...

    00c0 - fc fd bd d4 55 10 df 31-5b b5 42 7e 75 b3 23 3b   ....U..1[.B~u.#;

    00d0 - 78 06 0f 7c ec ca 15 af-6a ce f0 8b 74            x..|....j...t

 

    Start Time: 1614922454

    Timeout   : 7200 (sec)

    Verify return code: 0 (ok)

---