所以我使用stunnel与SSL服务器通话。 我希望在encryption之前看到我发送的消息，更重要的是在解密后收到的消息。
我打开debugging日志logging（7级），但我仍然看不到消息。 细节如下：
stunnel.conf
output = coinsetter.log [remote] client = yes accept = 8888 connect = 198.61.189.25:5001 debug = 7 通道输出：
2015.09.23 23:11:17 LOG5[ui]: stunnel 5.18 on x86_64-apple-darwin13.4.0 platform 2015.09.23 23:11:17 LOG5[ui]: Compiled/running with OpenSSL 1.0.1c 10 May 2012 2015.09.23 23:11:17 LOG5[ui]: Threading:PTHREAD Sockets:SELECT,IPv6 TLS:ENGINE,FIPS,OCSP,PSK,SNI 2015.09.23 23:11:17 LOG5[ui]: Reading configuration from file coinsetter.conf 2015.09.23 23:11:17 LOG5[ui]: UTF-8 byte order mark not detected 2015.09.23 23:11:17 LOG5[ui]: FIPS mode disabled 2015.09.23 23:11:17 LOG4[ui]: Authentication is needed to prevent MITM attacks 2015.09.23 23:11:17 LOG5[ui]: Configuration successful 2015.09.23 23:11:40 LOG7[0]: Service [remote] started 2015.09.23 23:11:40 LOG5[0]: Service [remote] accepted connection from 127.0.0.1:57261 2015.09.23 23:11:40 LOG6[0]: failover: round-robin 2015.09.23 23:11:40 LOG6[0]: s_connect: connecting 198.61.189.25:5001 2015.09.23 23:11:40 LOG7[0]: s_connect: s_poll_wait 198.61.189.25:5001: waiting 10 seconds 2015.09.23 23:11:40 LOG5[0]: s_connect: connected 198.61.189.25:5001 2015.09.23 23:11:40 LOG5[0]: Service [remote] connected remote server from 192.168.0.12:57262 2015.09.23 23:11:40 LOG7[0]: Remote socket (FD=9) initialized 2015.09.23 23:11:40 LOG6[0]: SNI: sending servername: staging-fix.coinsetter.com 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): before/connect initialization 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv2/v3 write client hello A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 read server hello A 2015.09.23 23:11:40 LOG6[0]: Certificate verification disabled 2015.09.23 23:11:40 LOG6[0]: Certificate verification disabled 2015.09.23 23:11:40 LOG6[0]: Certificate verification disabled 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 read server certificate A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 read server key exchange A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 read server done A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 write client key exchange A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 write change cipher spec A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 write finished A 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 flush data 2015.09.23 23:11:40 LOG7[0]: SSL state (connect): SSLv3 read finished A 2015.09.23 23:11:40 LOG7[0]: 1 client connect(s) requested 2015.09.23 23:11:40 LOG7[0]: 1 client connect(s) succeeded 2015.09.23 23:11:40 LOG7[0]: 0 client renegotiation(s) requested 2015.09.23 23:11:40 LOG7[0]: 0 session reuse(s) 2015.09.23 23:11:40 LOG6[0]: SSL connected: new session negotiated 2015.09.23 23:11:40 LOG7[0]: Peer certificate was cached (871 bytes) 2015.09.23 23:11:41 LOG6[0]: Negotiated TLSv1.2 ciphersuite DHE-RSA-AES256-SHA256 (256-bit encryption) 2015.09.23 23:11:41 LOG7[0]: Compression: null, expansion: null