what symlink

Sendmail configuration Sendmail is often a "forbidden zone" for general system administrators, because most system users have high requirements and dependencies on e-mail, it can be said that the system manager should be prepared to accept the

Sometimes we need to disable some PHP dangerous functions to ensure security. for the following information, see phpinfo () Function description: outputs information about the PHP environment, related modules, and WEB environment. Hazard Level:

Php disables some dangerous functions passthru () Function description: Allows execution of an external program and echo output, similar to exec (). Hazard level: High Exec ()Function description: Allows execution of an external program (such as a

This article mainly introduces node. fs. the use of symlinkSync is described in this article. symlinkSync method description, syntax, receiving parameters, use instances, and implementation source code. For more information, see Method description:

Other frameworks only need to be uploaded, but you know that the lavarel entry file is under the public folder, so .... How to deploy it? Or is the whole upload followed by redirection so that all access is under public. Don't understand, please

Install OpenCV3.2 on MacOS X and opencv3.2 on macos Windows platform and linux Platform Installation See Official documentation: http://docs.opencv.org/3.2.0/da/df6/tutorial_py_table_of_contents_setup.html The installation on mac is not found on the

The main keywords recognized by the above functions are: Copy capability chdir chroot class class_start class_stop console chown chmod critical disabled domainname device exec export group hostname Ifup insmod import keycodes loglevel mkdir mount on

Precautions for replacing the original version of gcc with multi-version gcc-general Linux technology-Linux programming and kernel information. The following is a detailed description. As we all know, gcc can be stored in multiple versions of the

The problem that the UUID cannot be returned when RACASMUDEV is installed on the VM The problem that the UUID cannot be returned when rac asm udev is installed on the VM Use UDEV service to solve the rac asm storage device name1. Confirm that

It is easy to implement in the IIS environment. It can be prevented by an independent "anonymous access account" + NTFS permission. I checked that the IIS-like independent virtual host account solution in Apache does not seem to be well implemented,

Zookeeper configuration: Zookeeper has three configurations: stand-alone/pseudo-distributed/clustered where pseudo-distribution simulates distributed scenarios on a single computer through different ports, requires n-copies of configuration files

When the system is installed in the virtual machine for the first time, the CD-ROM is automatically mounted on the server without a disc and will automatically ejectAfter the installation is complete:Uninstalling the installation CD[[Email protected]

First, configure the IP addressThe function of Setup is weakened in RHEL7, the function of network service is weakened, and the network management is mainly through NetworkManager.RHEL7 modifying the network configuration via Nmtui (RHEL7 default

rsync+inotify Implementing file synchronization Updates (no firewall version)DirectoryDescription:... 2ready to work: Shut down the server's firewall ... 2shutting down the firewall firewall2Disable boot-up firewall ... 2write the script

centos7.1 OpenStack L version, environmental planning as follows[[email protected] ~]# ansible web -a  ' hostname ' 172.16.80.131 |  Success | rc=0 >>computer1172.16.80.130 | success | rc=0 > >controller[[email protected] ~]# ansible web -a  '

Environment IntroductionNode1 as the NTP master node, all other nodes are synchronized from the Node1 time,Node IpNode1 192.168.20.101Node2 192.168.20.102 All nodes install the NTP package:yum install ntp Modify the/etc/ntp.conf of the

Installing Zabbix ServerZabbix server nodes need to install MySQL in advance, install Zabbix Web-dependent Apache and PHP modules, and then install three Zabbix components zabbix-server-mysql, Zabbix-web-mysql, Zabbix-get.After installing Zabbix

Phpinfo () Function Description: Output PHP environment information and related modules, WEB environment and other information. Hazard Rating: Medium PassThru () Function Description: Allows an external program to execute and echo output, similar

rsync command Detail (see Official document Http://rsync.samba.org/ftp/rsync/rsync.html for more details)[Email protected] epel]# rsync--Helprsync version3.0.6Protocol version -Copyright (C)1996- theby Andrew Tridgell, Wayne Davison, and others. Web

File Structure stat--The following three functions can obtain status information for a file:#include intstat*pathstat*buf);int fstat(intstat*buf);intlstat*pathstat*buf);The stat function specifies the file path, Fstat Specifies the file descriptor,