某些update操作后，关于shadowsocks服务报错问题。

安装了 Nginx+PHP7 后，发现 SS服务器不能用了，试图重新启动 ss,结果报错如下：

INFO: loading config from ss.json 
2016-12-14 22:47:50 INFO loading libcrypto from libcrypto.so.1.1 
Traceback (most recent call last): 
File “/usr/local/bin/sslocal”, line 11, in 
sys.exit(main()) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/local.py”, line 39, in main 
config = shell.get_config(True) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/shell.py”, line 262, in get_config 
check_config(config, is_local) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/shell.py”, line 124, in check_config 
encrypt.try_cipher(config[‘password’], config[‘method’]) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/encrypt.py”, line 44, in try_cipher 
Encryptor(key, method) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/encrypt.py”, line 83, in init 
random_string(self._method_info[1])) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/encrypt.py”, line 109, in get_cipher 
return m[2](method, key, iv, op) 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/crypto/openssl.py”, line 76, in init 
load_openssl() 
File “/usr/local/lib/python2.7/dist-packages/shadowsocks/crypto/openssl.py”, line 52, in load_openssl 
libcrypto.EVP_CIPHER_CTX_cleanup.argtypes = (c_void_p,) 
File “/usr/lib/python2.7/ctypes/init.py”, line 375, in getattr 
func = self.getitem(name) 
File “/usr/lib/python2.7/ctypes/init.py”, line 380, in getitem 
func = self._FuncPtr((name_or_ordinal, self)) 
AttributeError: /usr/lib/x86_64-<a href="https://www.uu63.com/tag/linux/" title="查看更多关于 Linux 的文章" target="_blank">Linux</a>-gnu/libcrypto.so.1.1: undefined symbol: EVP_CIPHER_CTX_cleanup

这个问题是由于在 openssl1.1.0 版本中，废弃了 EVP_CIPHER_CTX_cleanup 函数，如官网中所说：

vim /usr/local/lib/python2.7/dist-packages/shadowsocks/crypto/openssl.py

service shadowsocks start

 sslocal -c ss