Linux

Add PPA:1, First enter Ubuntu system, System->administration->update manager->setting, in the software source interface, click Other softwaretab, click Add in the bottom left corner to paste in the obtained PPA address.2, can also be entered in the

After graduating 3 years of computer room operation, look at the router, switch, server status, check whether the AP is online, the hardware resources of the server is tight, and there is no real technology, accidental opportunity I came into

The role of file sharing between samba Windows and LinuxFtpNfsNFS between Linux and LinuxCIFS between Windows and WindowsDosDEC UnixSun UnixSMB Service Message BlockSamba=========================================ServerYum-y Install SambaVim/etc/samba/

1. SambaSamba Services Samba is a free software that implements the SMB protocol on Linux and UNIX systems, consisting of servers and client programs. SMB(Server Messages block, information service blocks) is aLANshared files and printers on

Multi-version management of JDK under LinuxIn the development of the project, no matter what language can not avoid multiple version of the environmental management issues (although this article in the JDK as an example, but not limited to the JDK),

Learning this is a painful thing, if learning Linux is really simple, then must be a liar lied, at least this will not bring you high salary, open the computer after the meditation. It's time to chat, or to catch a beautiful play, or to play lol or

/bin:bin is the abbreviation for binary, which is the most commonly used command in this directory./boot: This directory contains some of the core files used when starting Linux, including some connection files and image files./dev:dev is the

As a Linux ops, in a lot of times we are in a Linux application that requires us to install,One is the installation of the source package, he needs us to manually compile it, using our compression tool, compression usingThere is also a software that

DHCP-----Dynamic Host Configuration Protocol ProtocolApplication Layer ProtocolRole: assigning IP information to clientsPrinciple:1. Client sends DHCP discovery to explore DHCP server2. DHCP server sends DHCP offer (IP/NETMASK/GATEWAY/DNS)3. Client

Before due to testing needs, must use the mysql5.7 client, now because the product is perfect, began to support 5.6, so need to install 5.6 of the client to do the test, considering the efficiency of manual testing and non-repeatability, ready to

Linux memory Cleanup/release commands1. Memory usage before cleanupFree-m2. Start cleaning upEcho 1 >/proc/sys/vm/drop_caches3. Memory usage after cleanupFree-m4. Complete!To view the number of memory bars command:Dmidecode | Grep-a16 "Memory device$

In the company, the fourth time to modify the "firewall rules", tidy up a bit.Note: The change on the command line is temporary and requires some action to keep the rule forever, making it always effective.========================1, the first step,

Function Prototypes:void *mmap (void *addr, size_t length, int prot, int flags, int fd, off_t offset);Function: Maps a file to a process memory space with addr as the starting address, and when called, typically passes the addr parameter to NULL,

ldconfig Configuration Find shared library (Ldconfig performs two basic functions to process the shared library, first creating a connection so that it is guaranteed to be the latest version referenced by the shared library, and then saves the full

0. Install FTP the pre-condition is to turn off SELinux# Vi/etc/selinux/configModify selinux= "disabled" to restart the server. If it is the same, skip this step.1. you can see if VSFTP is installed first# Rpm-qa | grep vsftpdThe representative is

One.Common Commands1.View FilesTail-f file name to see what's at the back Cat file name View all the contents of a file2.Edit File ContentsVim file name enters edit modeI for editingESC Exit Edit: Wq Save Exit: q! do not save exitShift+g (g)

LS: command to display the target list1. Ls-a: Show All Files and directories (LS default to the file or directory with ".") Start as hidden, not listed)2. Ls-l: Displays the content details in the directory. Include filename, file type, permission

1. EnvironmentCentos2. Install SVNYum-y Install Subversion　　3. ConfigurationBuild the Repository DirectoryMkdir/www/svndatasvnserve-d-r/www/svndata　　4. Build the RepositoryCreate a new Subversion projectSvnadmin

A large collection of linux compression and decompression tools, linux compression and decompression There are many compression, decompression and archiving tools. Today, we will sort out some of the most commonly used tools. Compress gzip bzip2

PuTTY, PuTTY After configuring the Linux static IP address, make sure that you can connect to the physical host and write down the Linux IP address. PuTTYUse Download and install putty(installation package putty.exe), official website address Method