ping with port linux

1. Summary: ICMP and IP protocol belong to the same level (network layer), its message is sealed in the IP message transmission, and the port is the Transport Layer TCP/UDP protocol concept, so ping port is not successful Ping server was found to be inaccessible today, but it was possible to access the server, so banni

*/publicsystoolkitconfigure () {}/**** @param userconfig User Custom profile */publicsystoolkitconfigure (stringuserconfig) {user_configure= userconfig;} PublicnBsp;voidrun () {resourcebundleconfres=resourcebundle.getbundle (default_configure); Enumeration Systoolkit.properties Test=default test.test.linux=linux test.test.windows=windows test.ping.command.linux=ping-c 1-s 8 ${ip} Ping.command.windows=

In the code development process, we often need to use some network commands, as follows:(1) ipconfig command: Generally used to view our computer's IP address, gateway, subnet mask, DNS and other related information, such as:Ipconfig-all(2) Ping command: We are usually used to determine whether 2 or more than 2 machines between the network connectivity.For example, this machine: ping 127.0.0.1If you need to

A ping is a communication protocol that is part of the IP protocol, a portion of the TCP/IP protocol. It can be used to check if the network is able to connect, so it can help us to analyze and determine the network fault. The application format is: Ping IP address. But service-enabled pings can sometimes cause a lot of trouble.As a result, Linux server administr

Ping is a simple tool to test network connectivity, useful for the general user, but Ping has a disadvantage is that it can not specify the port, and if the source address ban Ping, the ping command on the same name. --Preface tcping command is for TCP monitoring, you can al

Linux can ping windows but Windows does not ping Linux solutionsLinux and Windows communicate with each other in the presence of a non-smooth situation can be removed from the following aspects of troubleshooting1. Check that Linux and Windows firewalls are off2. Check if th

receiving the two packagesUse multiple parameters# Ping-I 3-s 1024-t 255 g.cn // ping the hostPING g.cn (203.208.37.104) 1024 (1052) bytes of data.1032 bytes from bg-in-f104.1e100.net (203.208.37.104): icmp_seq = 0 ttl = 243 time = 62.5 MS1032 bytes from bg-in-f104.1e100.net (203.208.37.104): icmp_seq = 1 ttl = 243 time = 63.9 MS1032 bytes from bg-in-f104.1e100.net (203.208.37.104): icmp_seq = 2 ttl = 243

This article mainly introduces the ping port function implemented by php, and analyzes in detail the socket programming skills of PHP in the form of instances, you can refer to the following example to describe the ping port function implemented by php. Share it with you for your reference. The specific implementation

This article mainly introduces the ping port function implemented by php, and analyzes in detail the socket programming skills of PHP in the form of instances, you can refer to the following example to describe the ping port function implemented by php. Share it with you for your reference. The specific implementation

* 255.255.0.0 u 1 002 0 0 Eth0link-local * 255.255.0.0 U 1003 0 0 eth1192.168.0.0 10.163.19 1.247 255.255.0.0 ug 0 0 0 eth0172.16.0.0 10.163.191.247 255.240.0.0 ug 0 0 0 eth010.0.0.0 10.163.191.247 255.0.0.0 UG 0 0 0 eth0default 115.28.83.247 0.0.0.0 UG 0 0 0 eth1And then look at:[[email protected] postfix]# grep hosts/etc/nsswitch.conf#hosts: db Files Nisplus NIS dns#hosts: files dnshosts : DNS FilesI changed to the first DNS, in files, tested, also still not pass.Finall

This example describes the ping port function of the PHP implementation. Share to everyone for your reference. The specific implementation code is as follows: Copy Code code as follows: /* * @author Xujiajay * @date 2010-10-7 * @function PHP functions that can ping ports * */ Error_reporting (E_error); Header ("content-type:text/html; Charset

Production server:Os:centos Release 6.8 (Final)Task: Configure ping with kernel parametersFirst, the temporary effective configuration method:Do not allow local ping[[email protected] ~]$ Ping 117.40.*.*PING 117.40.*.* (117.40.*.*) bytes of data.[[email protected] ~]$ ping 1

Linux can ping IP but cannot ping host domain name resolution reprinted December 25, 2013 10:24:27 13749.vi/etc/nsswitch.confhosts:files Dnsnetworks:files changed to: hos Ts:files DNS Winsnetworks:files if not the same, in the hosts: the original line after the addition of a wins on the line. -----------------------------------------------------------------------

Because the friend said the port is not connected, deliberately tried the ping test with PHP, the result is quite satisfactory. The code and the run diagram are as follows: (if there is a great God to improve the better) $host = ' www.php100.com '; $port = ' 80 '; $num = 3; Ping times Get time function Mt_f (