Installation
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Query
Import the public key
rpm -K|checksig rpmfile to check the integrity and signature of the package
rpm –import /etc/pki/rpm-gpg/RPM-GPG -KEY-CentOS-7
yum-config-manager –add-repo= http://172.16.0.1/cobbler/ks_mirror/7/
rpm -qpR openssl.x86.rpm< br> rpm -qi openssl package information
rpm -qf /usr/lib/libssl.so.6 query which package provides the file
yum provides /usr/lib/libssl.so.6< /p>
Library functions that ldd ldd /usr/sbin/sshd depends on