Linux

Next, use DBCA to create the RAC database.① with Oracle User login GUI, execute DBCA, go to dbca GUI, select 1th, create RAC database:② Select the CREATE database option, Next:③ choose to create a common database, Next:④ Configuration Type Select

1 Delete 0-byte filesFind-type f-size 0-exec rm-rf {} \;2 Viewing processesSort by memory from large to smallPS-E-O "%c:%p:%z:%a" |sort-k5-nr3 Rank by CPU utilization from large to smallPS-E-O "%c:%p:%z:%a" |sort-nr4 Print the URL that says

First, IntroductionThe Chkconfig command is primarily used to update (start or stop) and query run-level information for system services. Keep in mind that Chkconfig does not immediately automatically disable or activate a service, it simply changes

Linux background Process Management of some commands: FG, BG, Jobs, &, CTRL + Z command, and so on, the following for everyone, specifically can also refer to the Linux video tutorial .First, &Add to the end of a command, you can put this command in

View IO Performanceiostat-d-x-k 1 10Whether the port is started/usr/sbin/lsof-i:8422/usr/sbin/tcpdump Icmp-n-I. eth0See if there is a large number of pingsView current number of connectionsNetstat-n |awk '/^tcp/{++s[$NF]} END {for (a in S) print A,s[

Valgrind Introduction:Valgrind is the framework for dynamic analysis tools. There are many Valgrind tools that can automatically detect many memory management and multi-process/thread bugs to dissect your program in detail. You can also use the

again, the main purpose of this series of Linux blogs is not to introduce various commands, but to explore the theory behind the commands. This article mainly introduces the user's creation and deletion.Creating a user primarily uses the Useradd

Installation and use of wireless cardin recent years, the use of wireless network more and more, in Windows using a wireless network card under the Linux How to use it? One: First to be able to clearly use what kind of excuse type of wireless card,

Installing SubversionYum Install SubversionAfter installation, the main use of three commands, SVN: This is the SVN client, SVNSERVE:SVN Server, after the start of the SVN command to obtain and modify the source file, SVNADMIN:SVN Server management

Use dynamic IP assignment in LAN, machine dynamic acquisitionIP address. But I'm always disconnected when I use SSH to log in.Later found that the original machine is always at two IP address 192.168.2.203and 192.168.2.228 switch between, with SSH

Mine is CentOS 5.6, Java is installed by default, first uninstall JavaQuerying installed Java-related software[Email protected] zengchao]# rpm-qa|grep

EnvironmentOS:CentOS 6.5 64位示例软件:nginx Starting from source codeIn the Linux environment, most of the software is developed in C + +, there is no difference between the software compiled and installed in the two languages, let's take a look at the

a . describes the main process of installing a Samba software package on a Linux system and configuring an authenticated Samba share server. Answer: 1. Install rpm package mount/dev/cdrom/mntCd/mnt/packageThe Ls–l samba* package also has the

The BRCTL is used to manage the Ethernet bridge, establish, maintain, and check the Network Bridge configuration in the kernel. A bridge is typically used to connect multiple different networks so that these different networks can communicate like a

I. Preliminary explanation of memory alignment memory alignment can be summed up in one sentence:"Data items can only be stored in memory locations where the address is an integer multiple of the data item size"For example, the int type occupies 4

1. Install x Server Software on Windows host, such as Xwin server with Cygwin2. Start the X server on the Windows host and set the Linux host to allow access to the X server on the Windows host.#xhost +[ip of Linux host]Or#xhost +//Allow all hosts

Disable ssh Password Logon on CentOS7 Modify the SSH configuration file Location of the SSH configuration file:/etc/ssh/sshd_config Find the parameter configuration: PasswordAuthentication: Change the two parameter values to no:

In Linux, you can send an email to an external mailbox through sendmail. Recently I was writing an automated inspection script, thinking about how to automatically send an email alarm after warning. Download the latest mailx-12.4.tar.bz2 # wget http:

Principles of the tratc (TrafficControl) FrameworkRecently, my work is more or less related to Linux throttling. Since I learned about TC a few years ago and understood its principles more or less, I have never touched it any more, because I do not

Linux Process Management (-) I. Process type Processes running in Linux can be divided into three types: Interactive Process: A process started by a Shell. Interactive processes can run either on the foreground or on the background. Batch Process: