TCP is not the default command of Windows, How to install tcp?

March 5, 2023 1164 point heat 1 person likes 0 comments

As we all know, the command to test the network delay is ping It tests the delay between two hosts based on the icmp protocol. However, in practical applications, it is found that many servers run normally and ping timeout occurs. In this case, we usually think that the server prohibits icmp and ping. In this case, we want to know what to do about the network delay with the target server? One ready method is to use tcp, which is a console program developed by a third party. You can obtain tcp latency by testing the open port of the target server.

Step 1

stay https://elifulkerson.com/projects/tcping.php Download tcping.exe

Step 2

Put the downloaded tcping.exe in the C: Windows System32 directory;
Then you can enter: tcping www.baidu.com 80 in the CMD command mode to obtain the network delay between the local server and the target server.

Parameter settings (the following are from official documents):

 Usage: NAME tcping - simulate "ping" over tcp by establishing a connection to network hosts. Measures the time for your system to [SYN],  receive the target's [SYN][ACK] and send [ACK].   Note that the travel time for the last ACK is not included - only the time it takes to be put on the wire a tthe sending end. SYNOPSIS tcping [-tdsvf46] [-i interval] [-n times] [-w interval] [-b n] [-r times][-j depth] [--tee filename] [-f] destination [port] DESCRIPTION tcping measures the time it takes to perform a TCP 3-way handshake (SYN,  SYN/ACK, ACK) between itself and a remote host. The travel time of the outgoing final ACK is not included, only the (minimal) amount of time it has taken to drop it on the wire at the near end.  This allows the travel time of the (SYN,  SYN/ACK) to approximate the travel time of the ICMP (request,  response) equivalent. OPTIONS -4       Prefer using IPv4 -6       Prefer using IPv6 -t       ping continuously until stopped via control-c -n count send _count_ pings and then stop.  Default 4. -i interval Wait _interval_ seconds between pings.  Default 1.  Decimals permitted. -w interval Wait _interval_ seconds for a response.  Default 2.  Decimals permitted. -d       include date and time on every output line -f       Force sending at least one byte in addition to making the connection. -g count Give up after _count_ failed pings. -b type Enable audible beeps. '-b 1' will beep "on down".   If a host was up, but now its not, beep. '-b 2' will beep "on up".   If a host was down, but now its up, beep. '-b 3' will beep "on change".   If a host was one way, but now its the other, beep. '-b 4' will beep "always". -c       only show output on a changed state -r count Every _count_ pings, we will perform a new DNS lookup for the host in case it changed. -s       Exit immediately upon a success.         -v       Print version and exit. -j       Calculate jitter.  Jitter is defined as the difference between the last response time and the historical average. -js depth Calculate jitter, as with -j but with an optional _depth_ argument specified. If _depth_ is specified tcping will use the prior _depth_ values to calculate a rolling average. --tee _filename_ Duplicate output to the _filename_ specified.  Windows can still not be depended upon to have a useful command line  environment. Don't tease me, *nix guys. --append When using --tee, append to rather than overwrite the output file. --file Treat the "destination" option as a filename.   That file becomes a source of destinations, looped through on a line by line basis.  Some options don't work in this mode and statistics will not be kept. destination A DNS name, an IP address, or (in "http" mode) a URL. Do not specify the protocol ("http://") in "http" mode.   Also do not specify server port via ":port" syntax. For instance:    "tcping  http://www.elifulkerson.com:8080/index.html " would fail Use the style:   "tcping www.elifulkerson.com/index.html 8080" instead. port A numeric TCP port, 1-65535.  If not specified, defaults to 80. --header include a header with the command line arguments and timestamp.  Header is implied if using --tee. HTTP MODE OPTIONS    -h       Use "http" mode.   In http mode we will attempt to GET the specified document and return additional values including the document's size, http response code, kbit/s. -u       In "http" mode,  include the target URL on each output line. --post   Use POST instead of GET in http mode. --head   Use HEAD instead of GET in http mode. --get    Shorthand to invoke "http" mode for consistency's sake. --proxy-server _proxyserver_ Connect to _proxyserver_ to request the url rather than the server indicated in the url itself. --proxy-port _port_ Specify the numeric TCP port of the proxy server.  Defaults to 3128. --proxy-credentials username:password Specify a username:password pair which is sent as a 'Proxy-Authorization: Basic' header. RETURN VALUE tcping returns 0 if all pings are successful, 1 if zero pings are successful and 2 for mixed outcome. BUGS/REQUESTS Please report bugs and feature requests to the author via contact information on  http://www.elifulkerson.com AVAILABILITY tcping is available at  http://www.elifulkerson.com/projects/tcping.php

 

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