我已经在我的16.04 Ubuntu上安装了stunnel4，并且我没有能够通过netstat -tulnp | grep 4444这里是我的服务状态：
stunnel4.service - LSB: Start or stop stunnel 4.x (SSL tunnel for network daemons) Loaded: loaded (/etc/init.d/stunnel4; bad; vendor preset: enabled) Active: failed (Result: exit-code) since Wed 2017-02-22 22:16:54 CET; 4s ago Docs: man:systemd-sysv-generator(8) Process: 2397 ExecStart=/etc/init.d/stunnel4 start (code=exited, status=1/FAILURE) Feb 22 22:16:54 Hypothesis stunnel4[2397]: [!] Cannot open log file: /var/log/stunnel14/stunnel.log Feb 22 22:16:54 Hypothesis stunnel4[2397]: [ ] Closing service [squid] Feb 22 22:16:54 Hypothesis stunnel4[2397]: [ ] Service [squid] closed (FD=7) Feb 22 22:16:54 Hypothesis stunnel4[2397]: [ ] Service [squid] closed Feb 22 22:16:54 Hypothesis stunnel4[2397]: failed Feb 22 22:16:54 Hypothesis stunnel4[2397]: You should check that you have specified the pid= in you configurat Feb 22 22:16:54 Hypothesis systemd[1]: stunnel4.service: Control process exited, code=exited status=1 Feb 22 22:16:54 Hypothesis systemd[1]: Failed to start LSB: Start or stop stunnel 4.x (SSL tunnel for network Feb 22 22:16:54 Hypothesis systemd[1]: stunnel4.service: Unit entered failed state. Feb 22 22:16:54 Hypothesis systemd[1]: stunnel4.service: Failed with result 'exit-code'. 我的conf文件：
cert = /etc/stunnel/stunnel.pem pid = /var/run/stunnel.pid setuid = root setgid = root output = /var/log/stunnel14/stunnel.log [squid] accept = 4444 connect = 127.0.0.1:54321
我的stunnel.pid目前在各自的文件夹，但我得到的那个错误消息，似乎很奇怪，我在日志中看到，stunnel正试图closures鱿鱼
怎么能过来这些错误？