Cloud Applications

The eaccelerator itself has the automatic clearing function. the specific setting options are as follows: eaccelerator. shm_ttl & quot; 600 & quot; when the eAccelerator fails to obtain the shared memory size of the new script, it will delete all

Some compression and archiving commands in linux I. Common compression and decompression tools compressuncomprss suffix: zgzipgunzip suffix: gzbzip2bunzip2 suffix: bz2zip some compression and archiving commands in linux I. Common

Linuxshell status Test expression meaning file Test-d Directory-s file length is greater than 0, non-empty-f regular file-w writable-L symbol connection-u file suid bit settings-r readable -x executable-nt test file1 compare to linux shell status

NFS file sharing can solve the problem of file sharing in the cluster environment, such as fragments and attachments. Now we assume there are two machines, 192168110 and 192168111. We use 192168110 as the server and 192168111 as the client. I.

In shell, the $ {} truncation function $ {file *}: removes the first string and its left string: dir1dir2dir3myfiletxt $ {file *}: removes the last string and its left string: myfiletxt $ {file *}: remove $ {} in the first and left shells.

After adding the network upload/download traffic display to the ubuntuindicator location adjustment, as the number size changes, many icons before the indicator keep changing, and it looks quite uncomfortable. the solution after askubuntu is as

Yum usage summary the basic operations of yum include software installation (local, network), upgrade (local, network), uninstall, and some query functions. Yuminstalllrzsz-yyuminstallvim-yyuminstalltcpdump-yyuminstallsysstat-y yum usage

Before introducing pptpVPN, let's take a look at the tunneling technology. The basic process of tunnel technology is to encapsulate data (data link layer or network layer data in the ISO 7-layer model) at the interface of the source Lan and the

Part 1: Network principle: 1. network addressing (mainly using IP address addressing) 1. IP address addressing is a two-layer addressing solution. an IP address identifies a host (or a Nic interface) 2. Currently, IPv4 addressing is the most widely

Network programming in embedded linux (4) -- UDPServer programming the design of TCP-based communication programs is introduced earlier. the TCP protocol implements the connection, reliability, and transmission control protocol for transmitting data

From 1991 to now, linux has been born for more than 20 years. although he is only one year younger than me, he has gone a long way. Moreover, he is more reliable and stable than before. However, linux is still faulty. I believe you can judge and fix

Alias is a shortcut that saves the trouble of inputting a long string of commands. It can also unify differences between Windows, Linux, and Unix commands to meet users' input habits. $ Alias is a shortcut that saves the trouble of inputting a long

Linux Memory Management-differences between virtual addresses, logical addresses, linear addresses, and physical addresses (I) linux Memory Management-physical addresses, linear addresses, and virtual addresses Linux Memory Management-differences

Server setup steps: 1 installation package $ sudoapt-getinstallsubversion2 add svn Management user and su Server setup steps: 1. installation package$ Sudo apt-get install subversion 2. add svn management users and subversion groups$ Sudo adduser

Preface: This article provides a broad description of interruptions, including the definition of interruptions, the classification of interruptions, the process of hardware interruptions in the computer, and Preface: This article provides a broad

Ubuntu has been used for a long time by using the account used to install the system. I have never added it myself. I want to add an account today. I searched the internet and saw this article htt. Ubuntu, which has been used for a long time, uses

When a stream is opened in the standard IO Library, the standard IO function fopen returns a pointer to the FILE object. This object is usually a structure that contains the standard I standard IO Library When a stream is opened, the standard I/O

Use & 039; top-I & 039; to check how many processes are Running. the system may have memory or IO bottlenecks. Use 'top-I 'to check how many processes are Running. the system may have memory or I/O bottlenecks. use free to check whether the system

This time, we will explain the blacklist, whitelist, and different ftp access settings on the intranet and internet. 1. sometimes we don't want some local users to log on to the blacklist. this time we will explain the blacklist, whitelist, and

1iscsi introduction ?? ISCSI uses the port860 and 3260 of the TCPIP as the communication channel. Benefits between two computers 1. iscsi introduction ? ? ISCSI uses port 860 and port 3260 of TCP/IP as the communication channel. The iSCSI protocol