telnet ftp

I will not go into details about the origins of linux systems, including the advantages and disadvantages. The following describes basic learning methods and ideas in the learning process. 1. instruct the attacker to fish 1. First, create a linux

The CentOS server is supported by many netizens. How to set the security of the CentOS server? Next, let's talk about centos6's security settings from the following aspects: System security record files, startup and login security, network access

Author: With the expansion of Linux applications, Cao Jianghua many friends began to contact Linux. based on Windwos learning experience, they often felt a bit confused: I do not know where to start learning. Here are some suggestions for learning

When you use a Linux operating system to handle security issues, the following rules and techniques may be useful. & Nbsp; 1. avoid some common work when logging on as the root user. This reduces the risk of virus infection and prevents you from

There is no absolutely secure system in the world. even a stable Linux system is widely considered to have shortcomings in terms of management and security. We expect the system to work at minimum risk, which requires enhanced management of system

Suppose you are from a computer science class. you have completed all the basic courses of the computer science department, such as data structure, operating system, architecture, compilation principle, and computer network. I think it can be

Article title: customize your own Linux application environment (1 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open

Article title: trapping intruders in Linux (3 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Author: Hong

Linux provides a large number of commands that can effectively perform a large amount of work, such as disk operations, file access, directory operations, process management, and file permission settings. Linux provides a large number of commands

System security record fileRecording files in the operating system are important clues for detecting network intrusion. If your system is directly connected to the Internet, you find that many people try to Telnet/FTP login to your system, you can

You certainly want to use ssh to use your server from a remote site, but some skills are required to make the process smooth. MindTerm, socat, and VNC. Oh, my God! Although remote work has always been one of the favorite Linux advantages of system

I. Disk partitioning1. If the system is newly installed, consider the security of Disk Partitions:1) root directory/), user directory/home, temporary directory/tmp) And/var directory should be separated into different disk partitions;2) the disk

TCP/IP is a commonly used standard protocol for network interconnection. It can communicate with each other in different environments and nodes, it is the protocol used by all computers connected to the Internet to exchange and transmit various

Article Title: Analysis and Comparison of four real-time operating system features. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded

TCP/IP note 1.TCP/ IP Layer 4 model: Application Layer (Telnet, ftp, snmp, smtp, etc.), transmission layer (TCP/UDP), network layer (IP, ICMP, and IGMP) and link layer (device drivers and network interface cards ). 2. In the TCP/IP protocol family,

Network Protocol Reading Notes Overview 1. Why are TCP/IP protocols required? 1) different computer hardware runs different operating systems. 2) different LAN hardware: Ethernet, Token network, etc. 3) information exchange. The TCP/IP protocol

OSI Layer-7 model basic knowledge and common application OSI Open Source Initiative (OSI for short, Open Source code Promotion Association, Open Source code organization) is a non-profit organization designed to promote the development of Open

Overview of TCP/IP learning Notes 1. hierarchical network protocols are generally developed at different levels, and each layer is responsible for different communication functions. A protocol family, such as t c p/I P, is a combination of multiple

Detailed explanation of each layer of the ISO/OSI model ISO layer 7 model from bottom to top is layer 1 to layer 7, respectively: www.2cto.com Application layer Presentation layer Session layer) the Transport layer (Transport layer) Network layer

Virtual Private Network (VPN) is defined as a temporary and secure connection established through a public Network (usually the Internet, is a secure and stable tunnel through the public network. Virtual Private Network is an extension of the