Linux

Linux installation oracle11g Instructions document I,            installation software Environment Preparation:n   Centos-6.5-x64.ison  securecrt.exen  filezilla.exen  linux.x64_11gr2_database_ 1of2.zipn  linux.x64_11gr2_database_2of2.zip   II,      

Basic syntaxA regular expression is often referred to as a pattern, which is used to describe or match a series of strings that conform to a certain syntactic rule.One, select:| | Vertical separators indicate selections, such as "Boy|girl"

The concept of Load average originates from UNIX systems, and although the formulas vary from one family to the other, they are used to measure the number of processes that are using the CPU and are waiting for the CPU, in a word, the number of

About "Security hardening"Safety is relative.Reinforcement may involve all aspects of the system: (1) hardware. For example: Intel X86 Hardware vulnerability; (2) operating system. Run from installation to installation and (3) system services. The

1. Check CPU MemoryTopPress the "P" key in uppercase to sort the content by CPU usage to see high-occupancy processes and PID2.netstat viewing of network connectivity in the hostnetstat -anpnetstat –antlp netstat -anltp | morenetstat -tunplnetstat

Some concepts:Virtual Space : is the space in which all the addresses that the process sees are composed. A process in the virtual space remapping all the physical addresses assigned to it.The addressing return is related to the number of bits in

001. Introduction to GitGit is an open source Distributed version Control tool in all of the world's distributed version control tools, Git is the fastest, simplest, and most popular git origin author is the father of Linux: Linus Benedict Torvalds

Tips for two points:* The newly added hard drive needs to restart the server fdisk-l to see* To use the root account for the following operationsThat's about it. View-partition-format-mount-restart auto mount1. Restart the server after adding the

One, unified account management1.LDAPUnified management of various platform accounts and passwords, including but not limited to a variety of operating systems (Windows, Linux), Linux system sudo integration, System user grouping, host login

To start setting the time zone, refer to the information on the Internet, using the Tzselect command, and found that the Tzselect command only tells the way to set the time zone, not really to modify/etc/sysconfig/clock this file. In other words,

GlancesLinux system comes with a lot of system performance monitoring tools, such as top,vmstat,iftop and so on, there is a monitoring tool glances, it can put a few other monitoring indicators in one. Glances is a relatively new system monitoring

Basic Network ConfigurationTo connect a Linux host to a network, you need to configure network-related settingsGenerally include the following:Host NameIp/netmaskRouting: Default gatewayDNS ServerPrimary DNS ServerSecondary DNS serverThird-party DNS

Static LibraryLet's talk about why we need a library.When there is a lot of code we will use in the program such as (scanf,printf, etc.) These functions we need to use in the program frequently, so we will compile the code as a library file, when we

learn about Linux commands today: RmDir Command . rmdir is a commonly used command, the function of which is to delete an empty directory before a directory is deleted must be empty. (Note that the Rm-r dir command can be used instead of rmdir,

The CP command is used to copy files or directories and is one of the most commonly used commands in a Linux system. In general, the shell sets an alias, and when the file is copied at the command line, if the destination file already exists, it

Make Menuconfig reported the following error while Linux was compiling the kernel. Unable to find the ncurses libraries or the Required header files. ' Make Menuconfig ' requires the ncurses libraries. Install ncurses

1. PrefaceThis paper is mainly based on the Linux 2.6 source code Analysis process model. Source code: Https://elixir.bootlin.com/linux/v2.6.39/source2. ProcessDefinition: A process is a computer program on a data set on a running activity, the

1.Linux is how the process is organized.* Process Concept: Process is a computer program on a set of data on a running activity, the system is the basic unit of resource allocation and scheduling, is the basis of the operating system structure. In

Https://www.cnblogs.com/anruy/articles/5541675.htmlnginx Reverse proxy, health status detection, overload protection and configuration file detailed-a the host name or IP address from which to log in to the system , displayed on the last line.-d

Yum (Yellow dog Updater, Modified) is an RPM package-based package management tool that automatically downloads rpm packages from a specified server and installs them, automates dependency relationships, and installs all dependent packages at once,