Cloud Applications

Account Management commands useradd and groupadd: 1. master the user's add/delete/modify Command 2. master Group addition, deletion, and modification command group management. 1) groupaddgroupadd is used to add group accounts. The format is as

Centos FAQ 1. Why can't the newly installed centos system be connected using tools such as xshell and putty? Cause: The sshd service is not started. Solution: 1) run the command rpm-qa | grepssh to check whether ssh2 is installed.) use

Grepcommand: RecursivelySearchAllFilesForAStringgrepcommand: RecursivelySearchAllFilesForAStringcd/path/to/dirgrep-r & quot; word & quot ;. grep-r & grep command: Recursively Search All Files For A String cd/path/to/dir grep-r "word ". grep-r

The awk file processing small practice file contains three fields (sorted): Example: summary. the awk file processing small practice file contains three fields (sorted): example: news news_1 1234556 news news_1 1234557 news news_2 1234558 news news_2

Ssh password-less login settings 1, set ssh password-less login ~ # Enter the above Command in ssh-keygen and press enter. 2. copy the generated password file. the default generated password file is in the. ssh directory under the user name

The configuration files/etc/passwd,/etc/shadow, and/etc/group are all text files used for system account management. they can be opened in text editors such as vim. /Etc/passwd is used to store user account information,/etc/shadow is used to store

LinuxMint is inconvenient to find a program in the corresponding path when you use some decompressed software (such as Eclipse) in Linux to create application menus and desktop shortcuts. If you want to say this is not simple, directly add the

The resolution of the LinuxMint external display adjusts the resolution of the LCD display with the external VGA interface to 1600x900, but it cannot be recognized normally under LinuxMint. Google has fixed the problem. Ctrl + Alt + T call terminal,

Centos6 sheepdog virtual machine distributed storage preface sheepdog is a virtual machine distributed file system specially designed for qemu. it adopts a completely symmetric structure and has no central node for metadata service, this eliminates

Ubuntu. deb package installation method Ubuntu package format for deb, the installation method is as follows: sudodpkg-ipackage.debdpkg detailed use method, there are a lot of online, the following simple list of a few: dpkg-ipackage.deb

RHEL dual Nic binding add bound Nic File: vi/etc/sysconfig/network-scripts/ifcfg-bond0DEVICEbond0ONBOOTyesTYPEEthernetBOOTPROTOstaticIPADDR192.168.56.101NETMASK255.255.255.0 # GATEWAY19 RHEL dual Nic binding add bound Nic file:

Ubuntu: modify user name and computer name 1. modify the user name: switch to the root to open the following two configuration files vi/etc/passwd and change the user name & quot; xxx & quot; to & quot; cyrec & quot, save and exit vi/etc/shadow and

Solution to LIBTOOLisundefined [plain] configure. ac: 10: error: possiblyundefinedmacro: AC_PROG_LIBTOOLIfthistokenandothersarelegitimate, pleaseusem4_patte LIBTOOL is undefined solution [plain] configure. ac: 10: error: possibly undefined macro: AC_

I believe many new users who want to learn linux are wondering what linux learning courses are good. the following small series will collect and organize several important tutorials for you to learn, if you want to learn more, go to the wdlinux

Linux background process management tool: supervisorLinux background processes run in several ways, such as nohup and screen. However, if it is a service program, it must run reliably in the background, we need to turn it into a daemon, and it is

The limit on the maximum number of file handles for linux is sufficient for general applications (such as Apache and system processes. However, how to process a large number of requests by a single process such as squid, mysql, and java is a little

When you install an application in Linux, the default installation path is/usr. Generally, there is no choice, unless you do not want to use this program & hellip; the installation method is generally: 1. rpm or deb software package. you can simply

BIND9 private DNS server uses DNSSEC1. server basic configuration 1) master root server 192.168.56.1012) from root server 192.168.56.1023) COM server 192.168.56.1034) resolution server 192.168.56.1042. configure the master root server 1... BIND9

Use centos6.3 _ x86_64 to install EPEL third-party software source wget-c http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpmrpm -Install EPEL third-party software source wget-c using centos6.3 _ x86_64 for

The shell script used by the server to automatically delete files is added to the system scheduler to automatically clean up junk files, such as unwanted log files. Support automatic cleanup when the matching path matches the file name that has not