yum error: Failed to initialize NSS library on Centos 7
Today I get error when accessing yum. This may be caused by the ssh connection closed when doing update. Here the error when I typed yum : error: Failed to initialize NSS library There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: cannot import name ts Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.7.5 (default, Aug 4 2017, 00:39:18) [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] If you cannot solve this problem yourself, please go to the yum faq at: http://yum.baseurl.org/wiki/Faq The issue will happen only on systems that are updating nss-softokn-freebl alone without updating nss and/or nspr. Here my last line yum.log and also my Centos Version. [root@db2 ~]# cat /etc/redhat-release CentOS Linux release 7.4.1708 (Core) [root@db2 ~]# date Sat Jun 30 17:46:05 W