Hi, If I do an md5sum across 4 machines all running Centos5-x86_64 on /bin/bash why does it show a different checksum ? -> ssh box4 md5sum -b /bin/bash 53d2152059125e221a38099369e5777e */bin/bash -> ssh box6 md5sum -b /bin/bash e22fb934b0a4a840a330f47559d27205 */bin/bash -> ssh box5 md5sum -b /bin/bash 34bd0269a3ca9ce15e3bf56957d95609 */bin/bash -> ssh box2 md5sum -b /bin/bash c830775b0f99dcd7a0d1dd6117f7d721 */bin/bash More intriguing is that rpm -V shows that the binaries match the rpm database on each server. Thanks