how to use ping

We often complain about many network problems, but we do not know many problems and hidden risks that cause many faults. How can we solve this problem? Here we will look at the problems caused by unauthorized DHCP. I. Prerequisites: Generally, the

When building a network, we should not only consider its performance, but also its security. So how can we prevent illegal DHCP server intrusion? The following is a detailed explanation of this issue. 1. disasters caused by illegal DHCP: Generally,

In many network structures, we found some conflicts between IP addresses and related protocols during some protocol settings. For example, we have explained the problem of lan dhcp conflicts today. In fact, unauthorized DHCP servers play a decisive

Vro, vswitches, and other devices are the core of the small and medium-sized enterprise network. They are responsible for the interconnection of various devices in the network and the forwarding of network communication packets. However, when a

In our study and work, the use of vrouters is everywhere. So how do we configure vro security? Let's take a look at how this article introduces you. In a typical campus network, a router is generally outside the firewall and is responsible for

Prerequisites:(1) first install JDK 6 or later on each Linux computer, and set JAVA_HOME and so on. Test whether commands such as java, javac, and jps can be used on the terminal, how to configure JDK is not mentioned here;(2) Install SSH on each

Three ways to implement Ping in JavaCheck the operating status of the equipment, and some use ping to detect. Therefore, you need to use Java to implement the ping function. In order to use Java to realize the function of Ping, it is recommended to

I believe many people are not very familiar with the settings of the tengda vro. So I have studied the causes and solutions for the errors in the settings of the tengda vro. I will share them with you here. I hope they will be useful to you, I hope

Note on successful DNS configuration-Linux Enterprise Application-Linux server application information. See the following for details. > 1) create a domain name www.yaoshuyin123.com 2) IP address of the Local Domain Name Server: 192.168.0.101 3)

Signatures and alarms for Cisco IPS systems Cisco IPS detection is based on signatures, and Cisco signatures is divided into three types: built-in signatures, modified signatures, and User-Defined signatures. ÜBuilt-in signatures:The built-in

** Install the Operating System 1. there is nothing to say about the installation process. Pay attention to the partition. 2. if the system is reinstalled, in order to prevent partition table errors, the C disk is generally not deleted, but the new

Analysis of Nagios monitoring routers and switch devices 1. Function introduction Nagios can monitor the status of switches and routers with manageable IP addresses. Small vswitches and hubs without management functions cannot be monitored. The

Analysis of the network card caused by Alpha routing ring when we test network packet loss, we usually use ping to query the target. The main causes of network packet loss include device faults, virus attacks, and other causes, today, we will

I sorted out two network security scanning tools under Ubuntu and shared them with friends who like ubuntu. Nbtscan --- collect NetBIOS information from a Windows network Tool Name: nbtscan-1.5.1a application environment: Linux tool Introduction:

: This article describes how to use commands such as ping in command line DOS. For more information about PHP tutorials, see. As we all know, the ping command is a very practical network Command. sometimes, we will find that the ping command cannot

In a typical campus network, a router is generally outside the firewall and is responsible for connecting to the Internet. In fact, this topology exposes the router to the campus network security defense line. If the router itself does not adopt an

Original address: http://blog.sina.com.cn/s/blog_c5c2d6690102wpxl.htmlThere are many parameters in the TCP protocol that affect the actual traffic flow, and here the main analysis of the effect of the window.? TCP Window PurposeTo achieve optimal

How to add permanent routes for Intranet access in different network segments in windows Enter route print in the cmd window to view route information; Open the cmd window as an administrator and enter: Route add-p 192.168.1.0 mask 255.255.255.0 1

1. Binary, decimal, octal, 16 binary conversion2. Framework, the development tool itself provides a class package for implementing a specific functionXcode Common Framework--uikit,foundation,coredata3. Introduction of third-party class librariesiOS

Google, degree Niang search Nginx optimization, can search out a lot of articles, tens of thousands of concurrent, 100,000 concurrency, looking like it is really so.From the use of tengine process, the optimization of Tengine/nginx, I personally