comando tracert

Several commands related to network security are: Ping winipcfg tracert netat netstat 1. Ping: This is one of the most useful commands in the TCP/IP protocol.It sends a series of data packets to another system, and the system itself sends a response. This utility is useful for searching remote hosts. The result returned by this utility indicates whether the system can reach the host, how long does it take for the host to send a returned packet.Usage:

How many hops are there between baidu.com and baidu.com?I. background Recently, after reading Netease game interview experience (3)-cotyb-blog Park, I tried to tracert baidu.com on windows. The result is as shown in the following figure, it seems that baidu.com (220.181.57.217) has not been reached until the last 30 hops ). However, if you ping baidu.com, You can ping it. It seems a little far away that you cannot jump to baidu.com after 30, so you ca

host; -A displays the network address of the target host in the IP address format; -N count specifies how many times you want to ping, specified by count. -L size Specifies the size of the packet to be sent to the target host. For example, when your machine does not have access to the Internet, first you want to confirm that it is a local area network failure. Assuming that the local area network's proxy server IP address is 202.168.0.1, you can use the ping 202.168.0.1 command to see if this c

the target host. For example, when your machine does not have access to the Internet, first you want to confirm that it is a local area network failure. Assuming that the local area network's proxy server IP address is 202.168.0.1, you can enable 肞 ing to avoid 202.168.0.1 commands to see if this machine is connected to a proxy server. For example, the common command to test whether the NIC is properly installed is ping127.0.0.1. Tracert The

to the target host can be guaranteed. Command Format: Ping the IP address or host name [-T] [-A] [-N count] [-l size] Parameter description: -T continuously sends data to the target host; -A displays the network address of the target host in the IP address format; -N count: the number of Ping attempts. The Count parameter specifies the number of Ping attempts; -L size indicates the size of the data packet sent to the target host. For example, if your machine cannot access the Internet, you must

Internet, and the smart device receiving the request returns the response packet to the victim according to the source IP address. It is determined to be SSDP Based on the remote port 1900. Uplink and downlink interfaces of the network: the uplink interface accepts data and the downlink interface sends data. The uplink port of a router is generally an interface connecting to the optical fiber transceiver of a communications company. The downlink interface is connected to a vswitch or terminal

By traceroute we can know what path the information from your computer to the other end of the Internet host is walking. Of course, each time a packet arrives at a similar destination (destination) by a similar starting point (source), the path may be different, but basically the route is the same.Linux systems, which we call traceroute, are tracert in MS Windows. Traceroute measures how long it takes to send a small packet to the destination device u

Original URL: http://www.cnblogs.com/peida/archive/2013/03/07/2947326.htmlBy traceroute we can know what path the information from your computer to the other end of the Internet host is walking. Of course, each time a packet arrives at a similar destination (destination) by a similar starting point (source), the path may be different, but basically the route is the same.Linux systems, which we call traceroute, are tracert in MS Windows. Traceroute mea

local computer to the file file-one on the remote computer, specify put. If you transfer file file-two on a remote computer to a file file-one on a remote computer, specify get. Because the TFTP protocol does not support user authentication, the user must log on and the file must be writable on the remote computer. Source Specifies the file to be routed. If the local file is specified as-, the remote file is printed (if acquired) on the stdout, or read from stdin (if placed). Destination Specif

Visit a website, want to see its IP is how much, on the Windows command line went down to ping the next site, the IP address is resolved, but found that the request timed out, there is no ping, then very confused. And then tracert the IP tracking to see what the problem, and finally found that when the IP was traced to the request was rejected. All of a sudden, it should be the server set up the relevant policies to the network layer ICMP echo Request

= 19ms The first TTL is 118, it is basically possible to judge that this is a Windows machine, from my machine to this machine through 10 nodes, because 128-118=10. And the second one should be Linux, for the same reason 64-54=10. Knowing something above, someone might have some questions, such as the following: 1, not that the package may go a lot of paths, why I see the 4 package TTL is the same, no different? This is because the path passed by the packet is determined by some optimal sel

an ICMP "timeout" message to the source host. The key to the Tracert program is that the source address of the IP header of the echo icmp packet is the IP address of the router. At the same time, if the destination host is reached, we cannot know, So Tracert also sends a UDP message to the destination host, and selects a large value as the UDP port, this prevents any application on the host from using this

As a common Internet user, sudden network faults have a headache. They not only affect our use, but also cause unnecessary losses, therefore, simply understanding the basic network test commands is also a good thing for us, saving time and improving work efficiency. Today, I would like to list some of the most common network failure test commands for your reference. Currently, the most common network test commands are as follows: Ping Tracert Netstat

.[Huawei]tracert 4.4.4.4// View the forwarding path of the packet for this link650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/6C/8A/wKiom1VLVn_ikLqRAAEKGE1NZi8343.jpg "title=" 7.png " alt= "Wkiom1vlvn_iklqraaekge1nzi8343.jpg"/>[Huawei]int G0/0/1[huawei-gigabitethernet0/0/1]shut// Turn off the default segment[Huawei]tracert 4.4.4.4650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/6C/86/w

can be accessed and inaccessible in some areas. For example, today's well-known cloud storage services Dropbox's home page, is an IP blockade.First we set the domain name server as a foreign country, excluding the problem of DNS hijacking. We then diagnose if Dropbox's domain name has been contaminated with DNS:C:\>nslookup www.dropbox.com 144.223.234.234DNS Request timed out.Timeout was 2 seconds.Can ' t find server name for address 144.223.234.234:timed outServer:unknownaddress:144.223.234.23

Traceroute transmits packets with small TTL (time to Live) values.The TTL is an IP header field , which is used to prevent packets from running into endless loops. When a router this handles the packet subtracts one from the packet ' s TTL. The packet expires and it ' s discarded when the TTL reaches zero.Traceroute sends ICMP time Exceeded messages, (RFC 792), when the sender is this occurs. By using small TTL values, the packets would quickly expire, so traceroute causes all routers along a pa

By traceroute we can know what path the information from your computer to the other end of the Internet host is walking. Of course, each time a packet arrives at a similar destination (destination) by a similar starting point (source), the path may be different, but basically the route is the same.Linux systems, which we call traceroute, are tracert in MS Windows. Traceroute measures how long it takes to send a small packet to the destination device u

(the shorter the better), so you can roughly determine the speed of the site.Similarly, the Webmaster's Home ping tool is also good, website: http://ping.chinaz.com/2: Simple method of measuring website speed with tracert commandThe test method is similar to the ping command, except that the ping is changed to tracert www. Your URL. com, tracert is used to detec

network can normally access the external network. It seems that the problem may not be on the firewall.Run the Tracert command to track and test A2 (IP Address: 10.20.12.12/24) on the computer. The symptoms are as follows:C: \> Tracert 10.20.30.110Tracing route to 10.20.30.110 over a maximum of 30 hops1 2 1 MS 3 1 MS 1 MS 1 MS 10.20.30.14 2 MS 1 MS 2 MS 10.20.30.110Trace completeChange the IP address of A2

convenient to view the firewall settings, so I called to ask. However, the Department's network administrator told him that the firewall was set for the network IP segment, that is, the firewall allowed access to the entire network IP segment of Department. The reason may be that some computers in this department have sent illegal access information to department B's network, and department B's firewall automatically intrude this IP address into the computer list, the IP packet sent by WAF is b