The various licenses and combinations thereof invoked on a freshly minted CentOS 7 server. `rpm -qa --qf "%{license}\n" | sort | uniq`

licenses-centos7.txt

AFL and GPLv2+
ASL 2.0
BSD
BSD and GPLv2+
BSD and LGPLv2+ and GPLv2+ and Public Domain
BSD and LGPLv2 and Sleepycat
BSD or GPL+
BSD or GPLv2+
BSD with advertising
Copyright © 2014 The CentOS Project.  All rights reserved.
CPL
(FTL or GPLv2+) and BSD and MIT and Public Domain and zlib with acknowledgement
GPL+
GPL+ and BSD and GPLv2+ and GPLv2 and LGPLv2+
GPL+ and GPLv2 and GPLv2+ and GPLv3+ and LGPLv2+
GPL+ and GPLv2+ and MIT and Redistributable, no modification permitted
GPL+ and LGPLv2+
GPLv2
GPLv2+
GPLv2+ and GPL+
GPLv2 and GPLv2+
GPLv2 and GPLv2+ and LGPLv2+ and BSD with advertising and Public Domain
GPLv2+ and GPLv3+
GPLv2 and LGPLv2
GPLv2+ and LGPLv2+
GPLv2+ and LGPLv2+ with exceptions
GPLv2+ and Public Domain
GPLv2+ and Redistributable, no modification permitted
GPLv2+, LGPLv2+, MIT
GPLv2+ or AFL
GPLv2+ or LGPLv2+ or MPLv1.1
GPLv2+ or LGPLv3+
GPLv2 with exceptions and LGPLv2 and BSD
GPLv3
GPLv3+
(GPLv3+ and ASL 2.0)
GPLv3+ and GFDL
GPLv3+ and GFDL and BSD and MIT
GPLv3+ and GPL and LGPLv3+ and LGPL and BSD
GPLv3+ and GPLv3+ with exceptions and GPLv2+ with exceptions and LGPLv2+ and BSD
GPLv3+ and LGPLv2+
GPLv3+ and LGPLv2+ and LGPLv3+
IBM and GPLv2+
IJG
ISC
LGPLv2
LGPLv2+
LGPLv2 and GPLv2
LGPLv2+ and GPLv3+
LGPLv2+ and GPLv3+ and GFDL
LGPLv2+ and LGPLv2+ with exceptions and GPLv2+
LGPLv2+ and MIT
LGPLv2+ and MIT and GPLv2+
LGPLv2+ or MIT
LGPLv3+
libtiff
MIT
MIT and BSD and ISC and GPLv2+
MIT and Public Domain
MIT or LGPLv2+ or BSD
MPLv2.0
OpenLDAP
OpenSSL
pubkey
Public Domain
Public Domain and GPLv2
Python
Python or ZPLv2.0
Redistributable, no modification permitted
Vim
zlib and Boost