ssh access control

Previously configured servers, equivalent to the entire intranet is publicMoreover, in addition to the 80-port Nginx to access the services indirectly, you can bypass Nginx, direct IP address plus port access to the corresponding serviceIt's not right, so we're going to have to make some restrictions.Because only for the specific people to provide services, and LAN IP and Mac are fixed, so you can directly

Assume that there are a bunch of machines in which the IP address of the server to be accessed is 192.168.1.1 and the IP address to be accessed is 192.168.1.2. you don't need to write the rest, and you don't need it anyway. In linux, the SSH connection is basically used. the file control method can be used to implement the connection through hosts. allow and hosts under the/etc directory. Assume that there

You only need a CISCO router with an asynchronous module or a vro with a built-in asynchronous serial port to fully enjoy the control connection to a series of network devices in a work room or data center. Now let's take a look at how these jobs are done, learn how to manage multiple connections, and look at the security issues you should consider. Are you familiar with this situation? You work with firewalls, routers, and switches at home, but you c

The Integrated Wiring System belongs to the physical layer of any smart system. In the initial definition, the word "integrated" is defined as: it can replace various weak current systems (that is, intelligent systems ). However, because of the price and consciousness, the Integrated Wiring System has been widely used in telephone and computer network systems for a long time. With the increasing popularity of Integrated Wiring System technology, many smart systems gradually begin to use integrat

The Integrated Wiring System belongs to the physical layer of any smart system. In the initial definition, the word "integrated" is defined as: it can replace various weak current systems, that is, intelligent systems ). However, because of the price and consciousness, the Integrated Wiring System has been widely used in telephone and computer network systems for a long time. With the increasing popularity of Integrated Wiring System technology, many smart systems gradually begin to use integrat

Access Control List (i)? TCP and UDP protocolThere are two main transport layer protocols for TCP/IP protocol family: TCP (transmission, Transmission Control Protocol) and UDP (user Datagram Protocol, subscriber Data hold protocol).? TCP ProtocolTCP is a connection-oriented, reliable protocol for process-to-process communication. TCP provides a full duplex servic

Http://secappdev.org/handouts/2012/Jim%20Manico%20%26%20%20Eoin%20Keary/Final%20-%20Access%20Control%20Module%20v4.1.pdfWhat is Access control/authorization?Authorization is the process where a system determines if a specific user have access to a particular resource.There are several keywords in the definition above: process, specific user, particular resourceTh

This experiment configures and monitors the IP Address Access Control List, including the list of standard, extended, and named IP addresses.1. Tutorial PurposeThrough this experiment, you can master the following skills:● Configure the standard IP Address Access Control List;● Configure the Extended IP Address

The information security classified protection system is the basic system for information security assurance in China. In the technical requirements of the classified protection operating system, the autonomous access control mechanism runs through level 1 to level 5 information systems, with the increasing security protection levels, increasing the depth and breadth of security protection is an important p

Access Control ListACLs can be used for interfaces, as well as globalInterface access control lists can only control traversal traffic (except session connections)All traffic terminated to the ASA, controlled by different administrative