折腾openssl ,结果敲yum命令提示：

Traceback (most recent call last):
  File "/usr/lib64/python3.7/site-packages/libdnf/error.py", line 14, in swig_import_helper
    return importlib.import_module(mname)
  File "/usr/lib64/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 670, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 583, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 1043, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: /usr/lib64/libldap-2.4.so.2: symbol TLS_method version OPENSSL_1_1_0 not defined in file libssl.so.1.1 with link time reference

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/yum", line 57, in <module>
    from dnf.cli import main
  File "/usr/lib/python3.7/site-packages/dnf/__init__.py", line 30, in <module>
    import dnf.base
  File "/usr/lib/python3.7/site-packages/dnf/base.py", line 29, in <module>
    import libdnf.transaction
  File "/usr/lib64/python3.7/site-packages/libdnf/__init__.py", line 8, in <module>
    from . import error
  File "/usr/lib64/python3.7/site-packages/libdnf/error.py", line 17, in <module>
    _error = swig_import_helper()
  File "/usr/lib64/python3.7/site-packages/libdnf/error.py", line 16, in swig_import_helper
    return importlib.import_module('_error')
  File "/usr/lib64/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named '_error'
看来是把openssl给整坏了，下载最新的openssl 源码，如1.1.1g，解压缩，执行：

./config shared enable-ssl enable-ssl3-method enable-tls  enable-tls1_3 zlib  enable-ssl3 

make -j 16

make install 

还是不行，手动复制吧

cp ./libssl.so* /usr/lib64/

覆盖同名的文件以后再次yum就不报错了。

复制之前可以  nm /user/lib64/libssl.so.1.1 | grep TLS_method查看是不是有这个方法，发现确实没有，这就可以大胆的复制文件覆盖了。