Update shell-and-data-access.md

docs.it4i/general/shell-and-data-access.md

@@ -123,7 +123,7 @@ Last login: Tue Jul 9 15:57:38 2013 from your-host.example.com
 
 ## Data Transfer
 
-Data in and out of the system may be transferred by the [SCP][a] and SFTP protocols.
+Data in and out of the system may be transferred by SCP and SFTP protocols.
 
 ### Anselm Cluster
 
@@ -276,7 +276,7 @@ Now, configure the applications proxy settings to `localhost:6000`. Use port for
 ## Graphical User Interface
 
 * The [X Window system][6] is the principal way to get a GUI access to the clusters.
-* [Virtual Network Computing][7] is a graphical desktop-sharing system that uses the [Remote Frame Buffer][f] protocol to remotely control another computer.
+* [Virtual Network Computing][7] is a graphical desktop-sharing system that uses a Remote Frame Buffer protocol to remotely control another computer.
 
 ## VPN Access
 
@@ -291,9 +291,7 @@ Now, configure the applications proxy settings to `localhost:6000`. Use port for
 [7]: ../general/accessing-the-clusters/graphical-user-interface/vnc.md
 [8]: ../general/accessing-the-clusters/vpn-access.md
 
-[a]: http://en.wikipedia.org/wiki/Secure_copy
 [b]: http://linux.die.net/man/1/sshfs
 [c]: http://winscp.net/eng/download.php
 [d]: http://code.google.com/p/win-sshfs/
 [e]: http://sockspuppet.com/
-[f]: http://en.wikipedia.org/wiki/RFB_protocol