samba-functionality/overview.md

@@ -158,7 +158,7 @@ authenticate users against the joined domain.
 ### [pam_winbindd](https://www.samba.org/samba/docs/current/man-html/pam_winbind.8.html)
 
 `pam_winbind` allows local logins to be authenticated against the
-joined domain.
+joined domain using UNIX pluggable authentication modules (PAM).
 
 * [nsswitch/pam_winbind.c](https://git.samba.org/?p=samba.git;a=blob;f=nsswitch/pam_winbind.c)
 
@@ -177,6 +177,8 @@ Modern FreeRadius versions actually link directly to the winbind
 client library `libwbclient` and so avoid the `fork()`/`exec()` cost of
 calling `ntlm_auth`.
 
+* [FreeRadius](http://freeradius.org/)
+
 * [nsswitch](https://git.samba.org/?p=samba.git;a=tree;f=nsswitch)
 
 ## [Netbios Name server](https://www.samba.org/samba/docs/current/man-html/nmbd.8.html)
@@ -291,7 +293,7 @@ open and which locks are held by Samba clients.
 
 ### [smbcontrol](https://www.samba.org/samba/docs/current/man-html/smbcontrol.1.html)
 
-The command line `smbcontrol` tool gives information on and allows
+The command line `smbcontrol` tool gives (diagnostic) information on and allows
 control of the Unix processes that Samba creates.
 
 * [source3/utils/smbcontrol.c](https://git.samba.org/?p=samba.git;a=blob;f=source3/utils/smbcontrol.c)