How can I determine if a package was built from source?

Question

I am trying to determine if httpd is from the rpm or a custom build.

httpd -v returns

Server version: Apache/2.2.15 (Unix)
Server built:   Mar  3 2015 12:06:14

Answer 1

You can use rpm -qaand/or yum list installed to get a list of the installed packages.

rpm -qa httpd

or

yum list installed httpd

If the relevant httpd package isn't installed then you httpd was definitely compiled.

The above would determine if a relevant package had been installed but wouldn't help if a binary had later been compiled and then used to overwrite the original.

You can verify the files from an rpm

rpm -V httpd

this would tell you if files in the httpd package had changed since being installed.