which command is used to determine if another computer is reachable via tcp/ip
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The ping Command The ping Command. ping is one of the most basic, but also one of the most useful, tools for obtaining information about computer networks, including the Internet. A main use of ping is to determine whether a specific IP address is accessible. An IP address is a unique numeric identifier for a computer or other device on the Internet or other TCP/IP (transmission control protocol/Internet protocol) network.
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ping (networking utility) Ping operates by sending Internet Control Message Protocol (ICMP) echo request packets to the target host and waiting for an ICMP echo reply.he following is the output of running ping under Linux for sending five probes to the target host www.example.com: The utility summarizes its results after completing the ping probes. The shortest round trip time was 9.674 ms, the average was 10.968 ms, and the maximum value was 11.726 ms.
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NetBIOS Over TCP/IP NetBIOS sessions are established between two names. 1  For example, when a Windows 2000 workstation service makes a file sharing connection to a Windows 2000 server service using NetBIOS over TCP/IP, the following sequence of events takes place: 2  The NetBIOS name for the server process is resolved to an IP address. A TCP connection is established from the workstation to the server, using TCP port 139. The workstation sends a NetBIOS Session Request to the server name over the TCP connection.
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- Use Ping to test whether a particular host is reachable across an IP network and to measure the round-trip time for packets sent from the local host to a destination computer. This can include measuring the local host's own interfaces using ICMP messages.
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- Some common situations where PING can be useful: 1  To verify that TCP/IP is installed, initialized, and bound to your network interface, ping the loopback address (ping 127.0.0.1). 2  To verify that the default gateway is available and the computer can communicate with a remote host through a router, ping a host on a remote network.
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- Every node participating in networking needs a valid IP address. On Linux command prompt IP address is assigned by a network configuration window. This window can be invoked by selecting network configuration sub menu form setup command or directly executing system-config-network commands.
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- To find a computer's internet address in a Unix system, use the standard ifconfig command in a terminal window. The ifconfig command stands for interface configuration.. Each Unix version is slightly different, and every computer can be set up in various ways. However, the basic process is uniform throughout Unix.
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- To ping a computer by IP address, 1  open a shell prompt (in Microsoft Windows, the Command Prompt or MS-DOS Prompt on Start Menu) 2  type ping followed by a space and the IP address. 3  press the Enter (or Return) key.
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Testing network connectivity with ping ping (This will ping the IP address of a device like a local computer, remote server or any client that receives an IP address to verify that it is reachable and that you can communicate with it properly.) Example: ping 192.168.1.1 (this is the default IP address of NETGEAR routers)
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- To call someone else who also has Skype, you need to actually call the server. The Skype program connects with the IP address of the other person. You can trace the IP address of someone who also has Skype using a utility called the Command Prompt..If you want to send a file to the Skype contact over FTP (File Transfer Protocol), you will need to find out the other person's IP address.o back to your Command Prompt window. Type netstat-nb and press Enter.. Look for Skype on the list of running programs. Write down the IP address listed next to it.
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PsLoggedOn v1.35 You can determine who is using resources on your local computer with the net command (net session), however, there is no built-in way to determine who is using the resources of a remote computer. In addition, NT comes with no tools to see who is logged onto a computer, either locally or remotely. PsLoggedOn is an applet that displays both the locally logged on users and users logged on via resources for either the local computer, or a remote one. If you specify a user name instead of a computer, PsLoggedOn searches the computers in the network neighborhood and tells you if the user is currently logged on.
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Testing Connection using TCP/IP For that, the TCP/IP protocol supplied with Windows95/98/ME/NT4/2000 offers a small, but powerful tool called : ' ping '. (You can also use the NET DIAG test), allowing to make a connection test on a much simpler setup, but TCP/IP PING can also be used to test a WAN connections) :
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Using the traceroute Command on Operating Systems The traceroute command allows you to determine the path a packet takes in order to get to a destination from a given source by returning the sequence of hops the packet has traversed. This utility comes with your host operating system (for example, Linux or Microsoft (MS) Windows), as well as with Cisco IOS® Software.n Cisco routers, the codes for a traceroute command reply are: If you run the traceroute command from UNIX, note these items: You can receive traceroute: icmp socket: Permission denied messages. The traceroute program relies on the Network Interface Tap (NIT) to snoop in the network.
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How to Troubleshoot Connecting to the SQL Server Database Engine Next, if the ping test succeeded using the IP address, test that the computer name can be resolved to the TCP/IP address. On the client computer, in the command prompt window, type ping and then the computer name of the computer that is running SQL Server. For example, ping newofficepc.
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15 Things You Might Not Know AboutOne Flew Over the Cuckooâs Nest one flew over the cuckoo’s nest was the first film to win all “big five” academy awards in 41 years. Not since 1934's It Happened One Night swept the Oscars had a film walked away with awards for Best Picture, Best Director, Best Actor, Best Actress, and Best Screenplay.
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Encyclopedia TCP/IP is a routable protocol, and the IP network layer in TCP/IP provides this capability. The header prefixed to an IP packet contains not only source and destination addresses of the host computers, but source and destination addresses of the networks they reside in.
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Testing network connectivity with ping Here is a brief explanation of commonly used ping commands: 1  ping 127.0.0.1 (This is a loopback ping - your computer trying to talk to itself. If the loopback step fails, it might be because the TCP drivers are corrupted, the network adapter might not be working, or another service is interfering with IP.)
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The ping Command ping is most typically used without any of its options. The destination can be expressed in terms of the numerical IP address or a URL. In the case of a LAN (local area network), it can also be an alias for a computer or other network device. To ping the same computer from which the ping command is being issued, either of the following can be used:
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- If there is an error in the delivery to the destination, the ping command displays an error message. You can use the ping command to: 1  Ping your computer (by address, not host name) to determine that TCP/IP is functioning.
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What Connects Computers & Allows Them to Talk to Each Other? Transmission Control Protocol/Internet Protocol (TCP/IP) is the backbone of the Internet and the true language computers use to talk to each other. Essentially it's a set of standards for sending information from a computer's network card, through transmission lines to another network card.
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Telnet commands You can remotely administer a computer running Telnet Server using the tlntadmn commands if both computers are running Windows XP. You can not use the tlntadmn commands to remotely administer a computer running Windows 2000 and Telnet Server from a computer that is running Windows XP.he telnet commands allow you to communicate with a remote computer that is using the Telnet protocol. You can run telnet without parameters in order to enter the telnet context, indicated by the Telnet prompt (). From the Telnet prompt, use the following commands to manage a computer running Telnet Client.
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- ping command. The ping command is useful for determining the status of the network and various foreign hosts, tracking and isolating hardware and software problems, and testing, measuring, and managing networks. Some ping command options relevant to performance tuning are as follows:
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- Answer / mr.shahin07. Mr. M Haja Bahurudeen, Ur concept is little bit wrong. Ping (Packet Internet Grouper) command is used to check the. remote host status,also used to self test the network. interface card of the computer, , not IP address.
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Linux: Find Out Which Process Is Listening Upon a Port How do I find out running processes were associated with each open port? How do I find out what process has open tcp port 111 or udp port 7000 under Linux? netstat – a command-line tool that displays network connections, routing tables, and a number of network interface statistics.
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- Host: Specifies the remote host (computer) on which to run Command by IP address or name. -l UserName: Specifies the user name on the remote computer. If omitted, the user name of the user who is currently logged on is used.