In the last few days because of the Philippine shooting of Taiwanese fishermen in the "Taiwan-Philippine Hacker War", Taiwan hackers once captured the Philippine government's DNS server, forcing the Philippine hackers openly "begging for mercy." DNS security problem has become the focus of research at home and abroad again. And recently, the online has also burst out "54DNS" hijacking incident.
This hijacking by hackers using broadband router defects
The
first step : as shown in the following figure open IE browse LV we enter
192.168.0.1 and then enter the router's username and password to enter the router interface, and then click " Advanced Settings "
Step two : OK to enter to the interface we click on " Wireless Settings "-" Wireless Security ", where you can modify the wireless password and wireless network name.
The
third step : The name is OK now we click on "
Wire
1. Commands supported by the switch:
Switch Basic Status:
Switch:; ROM state, router is rommon>
hostname>; user mode
hostname#; privileged mode
Hostname (config) #; global configuration mode
Hostname (CONFIG-IF) #; interface State
Switch Password settings:
switch>enable; access to privileged mode
Switch#config terminal; Enter global configuration mode
Switch (config) #hostname;
Switch (config) #enable secret xxx; set privileged encryption password
S
One
1.router (config) #router rip start RIP process
2.router (conifg-router) #network 172.17.0.0 The primary network that specifies the RIP protocol
3.router (config-router) #passive-interface F0/1 to configure F0/1 as passive
For the Cisco router security configuration command family, the following are 10 configuration commands, which are expected to be good for everyone. When talking about configuring a new Cisco router, most configurations depend on the type of the router and the purpose of the service. However, each administrator has his/her own command list for configuring each
This article introduces the whole WAN configuration process with specific operation examples, and introduces the configuration principles and implementation steps. We also introduced POF and FR technologies.
Synchronous Serial Interface
1. This section describes the similarities between E1, T1, and T3.
Router # config t
Router (config) # controller e1 1
Router (c
When using the LAN router configuration method, the LAN router configuration method is often optimized, as well as the WAN port connecting to the wireless router and related problems. Here we will introduce the solutions to many problems involved.
Summary: Lan router configuration methods
With the popularity of wireles
Network Transmission of some key business data of some enterprises or organizations requires high reliability of network equipment and convenient maintenance.
There are multiple backup technologies for Cisco routers. Here we will introduce the router's own backup technology and line backup technology.
Generally, a router is a bridge between a LAN and a wan.
The so-called router's own backup technology is designed to solve a router's own hardwa
Router is the bridge of computer network, is the core device of connecting IP network. It can not only connect different networks, but also choose the path of data transmission, and can block illegal access. Routers are data packet forwarding devices that work in the third layer of the OSI Reference Model-the network layer, and routers implement network interconnection by forwarding packets. For beginners, routers are not easy to configure. This paper
First, Introduction HSRP (hot Standby Router Protocol Thermal Backup Router protocol) is a proprietary protocol of Cisco. HSRP makes up a "hot backup group" of multiple routers, forming a virtual router. Only one router in this group is active (active), and it forwards the packets, and if the active
There are multiple backup technologies for Cisco routers. Here we will introduce the router's own backup technology and line backup technology.
Generally, a router is a bridge between a LAN and a wan.
The so-called router's own backup technology is designed to solve a router's own hardware (such as memory, CPU) or software IOS fault or local port fault, network breakdown caused by the failure of the port or line of the connected local area device.
Th
At present, PE routers are widely used. They are one type of VPN routers. So I have studied the explanations and principles of PE routers and will share them with you here, I hope it will be useful to you. VPNVirtual Private Network (VPNVirtual Private Network) is a virtual Private Network based on public networks. It uses tunneling, encryption, and other technologies to provide users with a sense of direct connection to the Private LAN.
Introduction to MPLS VPN
MPLSMulti-Protocol Label Switch
Many junior network administrators ignore security settings when using Cisco routers, and the following three are ideal for novice users to configure network security when using Cisco routers.
One, the security configuration of the router "access control"
1, the administrator who can access the router is strictly controlled. Any maintenance needs to be documented.
2, the
OSPF router type When an AS is divided into several OSPF regions, OSPF routers can be classified AS follows based on the role of a router in the corresponding regions:Internal router: When all the directly connected links on an OSPF router are in the same region, we call this route
Router hardware Extraction
In the previous chapter, we have learned how to extract the root file system from the router firmware, and how to analyze and mine vulnerabilities. Starting from this chapter, we will learn some basic knowledge about router hardware. Generally, we obtain available firmware from a vro manufacturer. However, not every vro manufacturer pro
Currently, there are many kinds of router protocols, and many people may not know how to use the Router Protocol to minimize network interruptions. It doesn't matter. After reading this article, you will certainly have a lot of GAINS, I hope this article will teach you more things. As we all know, to obtain a high network duration, you need to use a master router
In order for the wireless router to work correctly as specified, we often need to log on to its backend admin interface through Web Access before using the device, and make appropriate settings for its Internet parameters. Generally speaking, ordinary users only need to modify the user name and password in the background, and follow the instructions to install and use the wireless router; But in the actual
One
1.router (config) #router rip start RIP process
2.router (conifg-router) #network 172.17.0.0 The primary network that specifies the RIP protocol
3.router (config-router) #passive-interface F0/1 to configure F0/1 as passive
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