Linux

How the kernel guarantees that each process addresses the memory page of the same shared memory area1. Page cache and swap cache pages: a physical page of an accessed file resides in the page cache or swap cache, and all the information for a page

There are three steps you can take to find a solution if you are sure that your network is not a problem:1) Determine the domain name server is set, if not, you can set up Google's public DNS services;# cat/etc/resolv.conf----------------------------

2.1. Output redirection: Command > FileName REDIRECT standard output to a new file Command >> filename REDIRECT standard output to a file (append) Command > FileName REDIRECT standard output

Jeremy Linabout GCCThe GNU complier Collection is the GNU's powerful, performance-rich multiplatform compiler suite that includes the front end of C, C + +, objective-c, Fortran, Java, Ada, and go languages. A library of these languages is included,

sockets are a communication mechanism (a contract between two parties of communication), whereby processes between different hosts can communicate. we can use the correlation function in the socket to complete the communication process .The

Several common terminal shortcut commands in Linux:The first can be viewed through the man Terminator, at the same time can be output, the use of man terminator>>terminator (but it is easy to shut down when it is also closed), the safe way is to use

Chen Tie + Original works reproduced please specify the source + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000The learning process is actually imitating the teacher's process, in case skilled enough, it becomes

Environment:Rhel6.6-x86_64iptables-1.4.21.tar.bz2L7-protocols-2009-05-28.tar.gzNetfilter-layer7-v2.23.tar.gzKernel-2.6.35.8-l7Want to prohibit employees from playing buckle during work, download movies waste valuable bandwidth? L7-filter is a good

I thought of the basics, explaining the architecture of Linux (architecture). (This image is referenced in "Advanced Programming in Unix Environment")The most internal layer is the hardware, the outermost is the user commonly used applications, such

some time ago also learned a lot of network-related knowledge, but also through a variety of practices. But it never starts with a real workout from scratch. Please try it today. The following is a detailed record of this process. This includes a

Linux process address space, core stack, user stack, kernel threadAddress space:On a 32-bit Linux system, the process's address space is 4G, including the 1G kernel address space, and the 3G user address space.Kernel Stacks:2 page size information

File upload and download tool (command rz sz) on Linux without network installation, file tool rz Generally, the virtual machines allocated by the company are not connected to the Internet, and lrzsz can only be installed by source code compilation.

Shell script-automatic DNS deployment and shell script dns For details, see: (1) Play with me the Linux Network Service: DNS service -- BIND (/etc/named. conf,/var/named) setting implementation and Explanation   1 #! /bin/bash 2 IP="10.10.10" 3 RIP=

Custom centos 6.5 automatic installation CD I. Prepare the production environmentLab environment:VMware WorkstationCentOS-6.5-x86_64-minimal minimal installationAfter installation, we will use the install. log and anaconda-ks.cfg files under the

Linux performance monitoring command vmstat I. Overview Monitoring is usually divided into machine monitoring and service monitoring. Machine Monitoring is the basic monitoring to obtain the current running status of the system. service monitoring

CentOS installation + configuration + remote, centos Configuration I switched to an article that I think is more technical. ^_^   I recently made a deal with CentOS and encountered many problems. So I read some blogs and solved some problems, but

Install the ZABBIX client with source code I have installed ZABBIX server before. For more information, see my previous article. Install ZABBIX client now Client installation Configuration Download and install the clientAll versions:

Install and configure OpenLDAP in RHEL7 Install and configure OpenLDAP in RHEL7 I. LDAP terminology Entry: a separate unit, which is differentiated by DN (distinguish name ). Attribute: the attribute of the entry. For example, if the entry is an

FastDFS file server implements dual-machine Hot Backup Two file fastDFS File ServersServer A: 192.168.10.157Server B: 192.168.10.158The above implementation objective: to add a fastDFS Backup Server (192.168.10.158) as the slave server of the

Tiny Web server code analysis A small but fully functional web server called Tiny has been developed in "deep understanding of computer systems". Here is the source code parsing of the Tiny server. 1. Tiny main program Tiny is an iterative server