# ./swanctl
Auto configuration failed
1:error:25066067
SO support routines
LFCN_LOAD:could not load the shared library:dso_dlfcn.c:185:filename(libproviders.so): libproviders.so: cannot open shared object file: No such file or directory
1:error:25070067
SO support routines
SO_load:could not load the shared library:dso_lib.c:244:
1:error:0E07506E:configuration file routines:MODULE_LOAD_DSO:error loading dso:conf_mod.c:285:module=providers, path=providers
1:error:0E076071:configuration file routines:MODULE_RUN:unknown module name:conf_mod.c:222:module=providers
解决办法：
export OPENSSL_CONF=/dev/null
# ./swanctl --load-all
