tier 1 ip network

Specifies the IP within the DOCKER0 network segment We manually specify--net=none, and we can see that there is no NIC in the container [Root@linuxea ~]# Docker run--net=none--name mynginx-d-P 80:80 nginx09b9819234338e47a8df7d3eba8daf23bf919b9fa2ea114d60742c3318dc2d69[Root@linuxea ~]# Docker Ps-aCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES09b981923433 nginx "nginx-g ' daemon off" 7 seconds ago u

Talk about sockets, TCP/IP, HTTP, FTP, and network programming SubmitMy message Load inhave left a message 1 What's all this?Since it is a network transmission, involving the interaction between several systems, the first thing to consider is how to accurately locate one or several hosts on

virtual machine system, see: the IP address we just obtained is automatically obtained and may change after the operating system is restarted. We need to connect through a remote terminal, so the IP address cannot always change. We need to set it to a static IP address to avoid system restart changes. Therefore, we need to modify the configuration file.

this series of tutorials is mainly about TCP/IP protocol. For programmers, mastering the 4-tier protocol stack is sufficient. They include: link layer, network layer, Transport layer, application layer.1, Link layer: Network card and other hardware devices and drivers, spec

IfconfigRouteIpIP routeOne, ifconfig command (view or configure IP)1. View Network Connections# ifconfig \ Show all active connections, not packet-disabled devicesOr# IFCONFIG-A \ Show all active and inactive connectionsDisplays the connection for the specified interface# ifconfig Eth12. Configure IP Address# ifconfig

defective, for example:The Inet_ntoa function return value is a pointer to a string, this memory will be overwritten every time the Inet_nota function is called, if you do not take the data in time, there will be unexpected errors, so the function is unsafe, there is a hidden danger;The return value of the Inet_addr,inet_network function is 1 when it represents an error, occupies the value of address 255.255.255.255, there is a flaw, buried the hidde

IP Phone cross-network IP Phone configuration (STEP): 1. Add the interfaces connected to the two switches to the voice VLAN. 2. Ensure layer-3 connectivity between the two routers. 3. automatically assign an IP address to the IP

. Traditional TCP IP Protocol network failure We have a general understanding, but another approach-structured approach is not very clear to many people. Below, we will look at its troubleshooting methods. Generally, themethod of structured diagnosis of TCP IP protocol network faults consists of three key parts: 　　Fi

is with IP conflict resolution This situation is mainly due to other computers under the router is also using your computer's IP address, resulting in IP address conflicts, there is no access to the Internet and so on. The main reasons for this situation are: 1, the local computer uses the 192.168.1.1

, the campus network is believed that most people have used, in the campus network settings There is a 255.255.255.0 thing, this is the subnet mask. The subnet mask is a binary number sequence of 32bit, in the form of a series of 1 and a series of 0, for example: 255.255.255.0 (binary is 11111111.11111111.11111111.00000000) for the B-class address just now, Beca

The 1.ping command returns a public network IP address, but this IP address is inconsistent with the current public network IP of the machine where the peanut shell client is located For example Ping ping-is-no-good.gicp.net, the

IP Control Protocol The IP protocol is only responsible for transmitting IP packets and cannot detect and control problems in the network. These tasks are completed through the Internet control protocol. ICMP (Internet Control Message Protocol) (1) The

machines, but two IP addresses are not available, that is, the last segment cannot be 0 or 255. If the two IP addresses are subtracted, the number is 254. Calculation Method 00 converts it to a four-digit binary number (each segment is 8 bits. If it is 0, it can be written as 8 zeros, that is, 00000000) 11111111.11111.11111000.00000000 Then, there are several zeros behind the number, and there are 11 in

There are two main factors to consider when configuring IP-MAC bindings on a switch: Does the switch turn on DHCP service? are port bindings or ARP bindings used? Port binding, or ARP binding, only enforces the correspondence of the Ip-mac. However, for clients that obtain an IP address automatically, it is also necessary to assign a fixed

1 Multi-Protocol Label exchangeMulti-protocol label switching MPLS, multi-protocol label switching) is a third-generation network architecture and is the standard for switching the next-generation IP High-Speed Backbone Network. It is proposed by IETF of the Internet Engineering Task Group, led by Cisco, ASCEND, 3Com,

The speed limit configuration is as follows: Access-list rate_limit_1 Extended Permit ip any host 192.168.1.2 //(limit 192.168.1.2 download) access-list rate_limit_1 Extended Permit IP host 192.168.1.2 any //(limit 192.168.1.2 uploads) access-list rate_limit_2 extended permit IP any host 1 92.168.1.3 //(limit

packet, re-calculate the checksum, and then send the data packet. If an error occurs, an ICMP error notification is sent, and the packet is discarded. The IP protocol works in this simplest way: it must repeat the preceding steps in every packet.IP segmentation is very important for IP functions. It provides the true meaning of these header fields. Not every physical n