Excerpt New Referral Behavior When queried for an existing A or AAAA record serving as glue (an address record at or below NS records at a delegation point), the authoritative name servers for .com and .net respond with the glue record in the answer section. However, the answer is not marked authoritative, i.e., the AA [...]
dig com. ns DNS Root Servers 274683 IN NS I.ROOT-SERVERS.NET. . 274683 IN NS J.ROOT-SERVERS.NET. . 274683 IN NS K.ROOT-SERVERS.NET. . 274683 IN NS L.ROOT-SERVERS.NET. . 274683 IN NS M.ROOT-SERVERS.NET. . 274683 IN NS A.ROOT-SERVERS.NET. . 274683 IN NS B.ROOT-SERVERS.NET. . 274683 IN NS C.ROOT-SERVERS.NET. . 274683 IN NS D.ROOT-SERVERS.NET. . 274683 IN NS E.ROOT-SERVERS.NET. [...]
reference : http://support.microsoft.com/kb/922120 This problem occurs if the Link-Layer Topology Discovery (LLTD) Responder component is not installed on the Windows XP-based computer. Network Map in Windows Vista makes network diagrams of the connections between network devices that can be used to troubleshoot connectivity problems. Network Map uses a discovery protocol called Link-Layer Topology Discovery (LLTD) [...]
Download Putty and Run Type in the IP of Linux box or other SSH server you have access to and make sure the port is correct too Under the tab “Connection –> SSH –> Tunnel” set a local source port *preferrably random number above 1024* Under destination choose “Dynamic” and “Auto“ Then click open Open [...]