diff --git a/README.md b/README.md
index c89798d..9f148a7 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # yp-tools
 
+Network Information Service (YP) client utilities.
+The yp-tools package contains the programs domainname, nisdomainname, ypcat, ypchfn, ypchsh, ypdomainname, ypmatch, yppoll, ypset, ypwhich and yppasswd. yp-tools 4.x is a port of yp-tools 2.x to support IPv6. For this reason, it is now linked against TI-RPC and an external libnsl.
+
diff --git a/yp-tools.spec b/yp-tools.spec
new file mode 100644
index 0000000..fef48b2
--- /dev/null
+++ b/yp-tools.spec
@@ -0,0 +1,75 @@
+Name:          yp-tools
+Version:       4.2.2
+Release:       1mamba
+Summary:       Network Information Service (YP) client utilities
+Group:         System/Tools
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://www.linux-nis.org/nis/yp-tools/
+Source:        http://www.linux-nis.org/download/yp-tools/yp-tools-%{version}.tar.bz2
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libe2fs-devel
+BuildRequires: libkrb5-devel
+BuildRequires: libnsl-devel
+BuildRequires: libtirpc-devel
+## AUTOBUILDREQ-END
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Network Information Service (YP) client utilities.
+The yp-tools package contains the programs domainname, nisdomainname, ypcat, ypchfn, ypchsh, ypdomainname, ypmatch, yppoll, ypset, ypwhich and yppasswd. yp-tools 4.x is a port of yp-tools 2.x to support IPv6. For this reason, it is now linked against TI-RPC and an external libnsl.
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%configure
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall
+
+%find_lang %{name} || touch %{name}.lang
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files -f %{name}.lang
+%defattr(-,root,root)
+%{_bindir}/domainname
+%{_bindir}/nisdomainname
+%{_bindir}/ypcat
+%{_bindir}/ypchfn
+%{_bindir}/ypchsh
+%{_bindir}/ypdomainname
+%{_bindir}/ypmatch
+%{_bindir}/yppasswd
+%{_bindir}/ypwhich
+%{_sbindir}/yp_dump_binding
+%{_sbindir}/yppoll
+%{_sbindir}/ypset
+%{_mandir}/man1/ypcat.1*
+%{_mandir}/man1/ypchfn.1*
+%{_mandir}/man1/ypchsh.1*
+%{_mandir}/man1/ypmatch.1*
+%{_mandir}/man1/yppasswd.1*
+%{_mandir}/man1/ypwhich.1*
+%{_mandir}/man5/nicknames.5*
+%{_mandir}/man8/domainname.8*
+%{_mandir}/man8/nisdomainname.8*
+%{_mandir}/man8/yp_dump_binding.8*
+%{_mandir}/man8/ypdomainname.8*
+%{_mandir}/man8/yppoll.8*
+%{_mandir}/man8/ypset.8*
+%{_localstatedir}/yp/nicknames
+%doc AUTHORS COPYING THANKS
+
+%changelog
+* Sat Sep 30 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 4.2.2-1mamba
+- package created using the webbuild interface