While install RPM using YUM repo i got a key error.
Public key for php-devel-5.4.33-38.el5.art.i386.rpm is not installed
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 signature: NOKEY, key ID 4520afa9
Reason :This is because of private key verification for redhat RPMs got failed.
If you got this kind of key error you can resolve this issue using this command:
wget -q -O –Â https://www.atomicorp.com/installers/atomicÂ | sh