Linux TC ifb principle and ingress flow control, ifbingress
First, paste the annotation of the ifb. c file header of the Linux kernel:
The purpose of this driver is to provide a device that allowsFor sharing of resources:1) qdiscs/policies that are per device as opposed to system wide.Ifb allows for a device which can be redirected to thus providingAn impression of sharing.2) Allows for queueing incoming t
Compare the ping commands of tnsping and TCP/IP of Orale:
-----------------------------------------------------------------------------Oracle Net tool (command) tnsping is an OSI Session Layer tool used:
1) Verify the name resolution (name resolution, of course, the name of the Oracle Network Service)
2) whether the remote listener is enabled
In terms of verifying the above two features, it is a handy tool
The route command in Linux is used to display and operate the IP route table (show/manipulatetheIProutingtable ). To achieve communication between two different subnets, you need a router that connects two networks or a gateway that is located in both networks.
In Linux, routing is usually set to solve the following problems: the Linux system has a gateway in a LAN that allows machines to access the Interne
This essay will explain in detail the Linux system's advanced command of the network card, IP alias, and the knowledge of multiple NIC bindings under Linux.
First, the Network card Advanced command
In a previous essay on the CentOS of Linux Learning (ix)--LINUX System network Environment configuration, detailed explanation of the Linux system under the network
In order to enable CEF on the routing processor card, the IP CEF command is used in global configuration mode. To disable CEF, use the "no" format for this command.
IP CEF No IP CEF
Syntactic description
Distributed (optional) enable the DCEF operation. Spread the CEF infor
ObjectiveThe topic said a bit long, in fact, is the following several things, the first is that the shell command can be executed within the program, and then pass the execution results to the variable, so that the subsequent transaction processing, the second is to use the Nmap command to get all the online IP and open ports in the current LAN, Finally, the resu
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