stunnel 沒有證書返回未知 CA

我有 2 個基於 linux 的 stunnels，1 個伺服器，1 個客戶端。我正在嘗試做的是使用 stunnel 客戶端，並使用 verify 3 它根據證書對使用者進行身份驗證。

以下是每個的配置文件：

客戶：

cert = /stunnel/client_Access_stunnel.pem
key = /stunnel/client_Access_stunnel.pem
CAfile = /stunnel/client_Access_stunnel.pem
CApath = /stunnel/cacerts/

flips=no
pid    = /var/run/stunnel-tcap.pid

; Socket parameters tuning
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
socket = l:SO_KEEPALIVE=1
socket = r:SO_KEEPALIVE=1

output = /stunnel/stunnel.log
client = yes
;verify = 3
debug = 5
[tcap]
accept = 0.0.0.0:3701
connect = 192.168.1.4:3700

伺服器：

pid = /var/run/stunnel/server.pid

cert = /opt/quasar/cert/certs/stunnels/server.pem
key = /opt/quasar/cert/certs/stunnels/server.pem

CApath = /opt/certs/stunnels/cacerts/

; Socket parameters tuning
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
socket = l:SO_KEEPALIVE=1
socket = r:SO_KEEPALIVE=1

; Security level
verify = 2

; Uncomment for troubleshooting purposes
debug = 7


; Log file path
output = /opt/stunnels/stunnel.log

[stunnel1]
accept = 0.0.0.0:3700
connect = 127.0.0.1:3701

錯誤是：

客戶：

2016.11.16 12:55:10 LOG7[77]: Remote descriptor (FD=11) initialized
2016.11.16 12:55:10 LOG6[77]: SNI: sending servername: 192.168.104.74
2016.11.16 12:55:10 LOG7[77]: SSL state (connect): before/connect initialization
2016.11.16 12:55:10 LOG7[77]: SSL state (connect): SSLv2/v3 write client hello A
2016.11.16 12:55:10 LOG6[78]: Certificate verification disabled
2016.11.16 12:55:10 LOG6[78]: Certificate verification disabled
2016.11.16 12:55:10 LOG6[78]: Certificate verification disabled
2016.11.16 12:55:10 LOG6[77]: Certificate verification disabled
2016.11.16 12:55:10 LOG6[77]: Certificate verification disabled
2016.11.16 12:55:10 LOG6[77]: Certificate verification disabled
2016.11.16 12:55:10 LOG7[77]: SSL alert (read): fatal: unknown CA
2016.11.16 12:55:10 LOG3[77]: SSL_connect: 14094418: error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca
2016.11.16 12:55:10 LOG5[77]: Connection reset: 0 byte(s) sent to SSL, 0 byte(s) sent to socket
2016.11.16 12:55:10 LOG7[77]: Deallocating application specific data for addr index

伺服器：

2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL state (accept): before/accept initialization
2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL state (accept): SSLv3 read client hello A
2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL state (accept): SSLv3 write server hello A
2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL state (accept): SSLv3 write certificate A
2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL state (accept): SSLv3 write certificate request A
2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL state (accept): SSLv3 flush data
2016.11.16 11:55:17 LOG4[36384:140097622492928]: VERIFY ERROR: depth=0, error=unable to get local issuer certificate: /C=UK/ST=London/L=London/O=org/OU=OP/CN=client/emailAddress=operations@n.se
2016.11.16 11:55:17 LOG7[36384:140097622492928]: SSL alert (write): fatal: unknown CA
2016.11.16 11:55:17 LOG3[36384:140097622492928]: SSL_accept: 140890B2: error:140890B2:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:no certificate returned
2016.11.16 11:55:17 LOG5[36384:140097622492928]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket

請忽略時間戳。相同的錯誤不同的時間。

• 我已將 CA 證書添加到 client_Access_stunnel.pem，未更改。
• 我已將所有 CA 的證書添加到 CApath
• 證書由本地管理的 xca 簽署

CApath 與 verifyChain 或 verifyPeer 選項一起使用，我在任何地方都看不到這些選項中的任何一個。另請注意“此目錄中的證書應命名為 XXXXXXXX.0，其中 XXXXXXXX 是證書的 DER 編碼主題的雜湊值。” （取自隧道手冊）

當您使用以下內容測試證書時會發生什麼：

openssl verify -CApath /opt/certs/stunnels/cacerts/ server-certificate-file

引用自：https://unix.stackexchange.com/questions/323918