Linux

Let's say you have connected to the system and are in a shell environment. 1. We first need to find the L-devices file, which should be in the USR/LIB/UUCP directory, but to prevent it from being hidden, enter the command: Find/-name L-devices-print

Basic techniques of Linux security management Chinese information position http://www.cnxxz.net Author: greenice Linux as an open source of the free operating system, with its highly efficient implicit quality, more and more users are welcome, and

One: Support quota in the kernel: [Root@localhost/]# grep config_quota/boot/config-3.10.0-123.el7.x86_64 config_quota=y CONFIG_QUOTA_ Netlink_interface=y # Config_quota_debug is not set config_quota_tree=y config_quotactl=y config_

First, Redhat/centos installation vsftp software 1. Update Yum Source First need to update the system's Yum source, convenient tool download address: http://www.jb51.net/article/54840.htm (shell script) 2. Install Vsftp Install vsftp using the

As we all know, Linux file permissions such as: 777;666, in fact, as long as the corresponding file with the UID of the permissions, you can use to add permissions to the identity of the person to run this file. So we just have to copy bash out to

Windwos using WINSCP and batch implementation to upload files via SSH port to Linux server Today, colleagues want to use WINSCP upload files on Windows to Linux server, and want to lazy to use batch processing to upload, fortunately only fixed

Gcc:liunx-C + + compiler in the environment, installing software requires it Kernel-devel:linux kernel, need to compile kernel when installing software, so need to keep kernel version consistency 1.Linux operating system installed, to see if GCC

Objective Thread? Why do we need threads when we have processes, and what are their differences? What are the advantages of using threads? There are also some details of multithreaded programming, such as how threads are synchronized and mutually

I use the method one, successful configuration, method two has not been tested, can be used as a reference Method One: 1. Ensure that the Yum is installed in the RHEL5 [Root@lvs-master ~]# rpm-qa |grep yum yum-metadata-parser-2-el5

Step One: Create an FTP guest group, using the Groupadd command, or an FTP group that you can create with an FTP server. #less/etc/group//See if there are any, if the FTP server installed the group exists; Step Two: Add the FTP user to the FTP

This example describes the Linux platform PHP5.4 How to set the number of FPM threads. Share to everyone for your reference, specific as follows: After the PHP5.4 is installed, the default profile for FPM is located

Brief introduction The Netstat command is used to display various network-related information, such as network connections, routing tables, Interface states (Interface Statistics), masquerade connections, multicast members (multicast memberships),

1. If the system has not been installed squid, in the following order to enter the command to complete the installation # wget http://www.squid-cache.org/Versions/v3/3.0/squid-3.0.STABLE18.tar.gz//Download Squid agent installation package # TAR-ZXVF

If you want to copy in cmd, you must pass the mouse. Copy: To mark (the right mouse button in cmd) to copy the content (or range), and then click the right mouse button or press ENTER (or CTRL + C) to copy complete. Paste: Right-click Paste can

In the process of program development, we have to use a number of timers, usually if the time precision is not high, you can use the Sleep,uslepp function to allow the process to sleep for a period of time to achieve timing, The former unit is

I take CentOS as an example and simply summarize how to configure SSH security access. Linux SSH Security Policy One: close unrelated portsMost of the hosts captured on the network were targeted by hackers scanning the tools in large areas. So, to

The requirements are: a test site, in a node need to sync to the official site, but the Config directory inside can not cover, Method One: Execute the following command at the terminal command line Cp-r ' Find/projecta-type

Although the old left blog is used in the WordPress program, but I have to say that WP program even if it is a very good one, but the problem in the resource occupancy is relatively poor. If you use the WP program to create a blog should know that

Maximum number of ===== threads = = The maximum number of threads for a single process in a Linux system has its maximum limit Pthread_threads_max This restriction can be viewed in/usr/include/bits/local_lim.h For linuxthreads This value is

What is an operating system? This question is very simple! The software that manages the computer's hardware and software is the operating system. The operating system is the interface between the user and the computer, as well as the computer