To block a single host, or a range of hosts from accessing a server you can use the following command(s): ## iptables -I INPUT -s 1.2.3.4 -j DROP ## iptables -I INPUT -s 1.2.0.0/16 -j DROP Those are temporary rules and if the server is rebooted they will not be present.
I recently upgraded my NetApp OnCommand System Manager and upon trying to login I was presented with the error: “500 Connection Refused”. This can occur if TLS is not enabled in DataONTAP. In this particular scenario, the only SSL protocol available was SSLv3, which most browsers now have disabled by default, or if your SSL… Read More »
When connected to NetMotion Mobility on Windows 8.1, Outlook 2013 frequently has connectivity problems. When attempting to open Outlook you are presented with a password dialog box, but no username format or password combination works. When you click cancel you receive an error stating the attempt to log onto Microsoft exchange has failed. This behavior… Read More »