Ulimit-u 16384-N 65536
Fi
Fi
If it is a C shell, the change value of the environment variable file/etc/CSH. login is as follows:
If ($ user = "oracle") then
Limit maxproc 16384
Limit descriptors 65536
Endif
Next, attach the CD, # Mount/dev/CDROM/mnt/CDROM.
Log on to the system with the Oracle user name and configure the Oracle user environment. You can use the i
) Definition of parent and child processes: When a process creates another process, the 1th process is called the parent process of the new process, and the new process is called a child process.4) PS Command function: Used to display the status of the current process.Ps–aux Show all the user-related complete informationMonitoring of processes in the system pstree, killCentos7 default no Pstree, requires yum-y install Psmisc
Hard disk partitioning, f
device, that is, the MBR we have always said.
4. Why do we recommend installing windows before Linux?
The reason is that Linux has the control transfer function, but Windows does not, because windows only loads the Boot Loader itself when loading it (Rogue, industry Cancer)
5 suppose my MBR uses grub in Linux, we have
[Linux journey] Part 4 Lesson 5: source code compilation and easy installation
Introduction
1,Part 4 Lesson 5:Compilation of source code to facilitate installation
2,Part 4 Lesson 6:DNS and domain name
Compilation of source code to facilitate installation
This course is relatively easy. After all, is it just a Ne
Install MySQL 5.7.11 for Linux Generic binary in CentOS 7 using the command line
The latest version of MySQL is 5.7.11. in Linux, the installation package of a specific release version is provided (for example, .rpmloud and a general version installation package (.tar.gz ). In general, many projects tend to use the binary universal installation package for instal
PHP page request for a nginx processing.Then execute:Makemake InstallBecause the source code is a bit more, compiling takes a little time, please wait patiently. After success, a new PHP folder will be created under/usr/local with the following file directory structure:[[email protected] ~]# ls-l/usr/local/phptotal 0drwxr-xr-x 2 root root 147 June 7 23:38 bindrwxr-xr-x 2 root root + JuN 22:13 etcdrwxr-xr-x 3 root root
logins and logged-in users-SIgnored, it is the same as the WHO-RYou can view the current operating level of the systemRun-level 3 APR 09:37 last=s-h,--heading displays a column heading. The commonly used headings are shown in table 4-2.Third, Linux View user command WhoAmI only display their own user name in the systemIv. Linux Viewing user commands who am IDisp
ObjectiveTitle, this blog record in the Linux CentOS 7 installation postgressql The entire process, as well as the database configuration, in the Linux system, PostgreSQL installation methods are divided into two kinds, namely:
Binary installation package Installation
Source Code Compilation Installation
Because we don't have any special needs.
Tags: cal har pen setting Shu official root linking hostLinux platform Oracle 10GR2 (10.2.0.5) RAC installation Part2:clusterware installation and upgradeEnvironment: OEL 5.7 + Oracle 10.2.0.5 RAC 3. Installing Clusterware
3.1 Extracting Clusterware Mounting media
3.2 Starting the installation of Clusterware
3.3 Root user executes script as prompted
3.4 VIPCA Creation (may not be requi
, industry cancer)
5 if my MBR uses Linux grub, then we have three menus.
1. The first menu is a kernel file that directly points to Linux to load the kernel directly to start Linux
2. The second menu is the boot loader control to Windows, which loads the Windows kernel to start Windows
3. Using the boot loader in Linux
Linux programming is a very good book with comprehensive content and detailed explanations of the examples given. In addition, it is explained through a small project: the first is to use shell for programming, and then gradually improve, use C language for implementation, use the ncurses library for implementation, and use the DBM database instead, use a MySQL database and add a socket. Finally, use GTK and QT to add a graphical interface. Therefore,
Install linux on Windows 7 and XP
Platform: win7 and XP (Asus Notebook)
Cause: I am used to Ubuntu, but sometimes I want to store something in windows, which is inconvenient for virtual machines.
Note:
A. The dual system installation in this article will not affect any data
B. Ubuntu can be mounted to all disk areas, while Windows cannot access the disk areas of
-release Red Hat Enterprise Linux Server Release 7.0 (Mai Po
Download the CentOS Yum
[[Email protected] ~] #wget http://mirrors.163.com/centos/7/os/x86_64/Packages/ yum-metadata-parser-1.1.4-10.el7.x86_64.rpm [[email protected] ~] #wget http://mirrors.163.com/centos/7/os/x86_64/ packages/yum-3.4.3-150.el7.centos.noarch.rpm [[email protected] ~] #wge
What's a LinuxLinux is a running operating system on the server, similar to our daily use of the PC-side Windows operating system. Although similar, there are still a lot of differences, such as Windows generally run in the graphical interface, and Linux is generally run on the init 3 command line interface. And also used on mobile phones, such as Android using the Linux Apple iOS similar to a uinx.#
.el7.x86_64.rpmRPM-IVH mysql-community-client-5.7.4-0.2.m14.el7.x86_64.rpmMount your image on the CD drive of the virtual machineInstall several dependent packages into the ISO fileRPM-IVH perl-net-daemon-0.48-4.el7.noarch.rpmRPM-IVH perl-plrpc-0.2020-12.el7.noarch.rpmRPM-IVH perl-dbi-1.627-1.el7.x86_64.rpmWork path back to the desktop and then continue to install our serverRPM-IVH mysql-community-server-5.7.4-0.2.m14.el7.x86_64.rpm6. Change user Pass
Linux Buffer I/O error on device dm-4, logical block, dm-4logical
Some errors such as "Buffer I/O error on device dm-4, logical block 0" appear in the Linux Server log (Oracle Linux Server release 5.7), as shown below:
Jul 3 02:33
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