Cloud Applications

ImageMagick is an open-source and powerful command line Image processing tool. Here you can learn about ImageMagick. Recently, many batch image processing work has been involved. using this tool, we feel that its functions are very powerful and

Server Configuration: premise: xinetd and rsync1. modify the/etc/xinetd. d/rsync file and change disableyes to noservicersync {disableyessocket_typestreamwaitnouserrootserver/u .. server configuration: Prerequisites: xinetd and rsync are installed. 1

Modify/etc/ntp. conf file content: add a line: serverasia. pool. ntp. orgprefer comment out this line: server127.127.1.0 start the ntp service: servicentpdstart modify the/etc/sysconfig/ntpd file, and change SYNC_HWCLOCKno to SYNC_H...

I. linux boot process (first, let's take a look at the linux boot Guide process) boot self-check MBR boot (masterbootrecord master boot record) GRUB Menu (if multiple systems are used, which system is used to choose to use) load the Linux kernel

1. download the latest J2SE1.6: jdk-6u17-linux-i586-rpm.bin2 from java.sun.com. copy the JDK installation file jdk-6u17-linux-i586-rpm.bin to any directory of Redhat. Example:/opt/jdk (Directory jdk needs to be manually created) 3. execute # chmod +

The optimization (configuration file) worker_processes8 in the nginx command; number of nginx processes, which is generally a multiple of the number of CPUs. Worker_cpu_affinity00000000000000000000000000000000000000000000000001000... Nginx command

1. install Sun's jdk1.6 and the JAVA_HOME environment variable has been directed to the jdk installation directory. (For details, refer to manual installation of SUN's jdk1.6 under Ubuntu10.4.) 2. download the stable version of hadoop installation

Recently, I have no research on some Web optimizations. when I used the pagespeed tool to detect the website, I found that gzip compression has not been enabled, so I went online to find materials for an experiment. in apache2.0 or above (including

The Cron daemon can execute shell scripts at a specified time. In fact, it is the same as the bat file for job scheduling in windows. # Crontab regularly execute commands (this is my main learning) # at only once # batch system attached when allowed

Memory, CPU, and I/O are the main bottlenecks of type servers, especially database servers. The CPU is a renewable resource, and it will be available if it is not enough. The memory and the land are the same as non-renewable resources and are

1. obtain the ID of the current process: pid_tgetpid (void). after adding this function to the program, you can obtain the idnumber of the process: printf (pid % d, getpid () when running the program ()); output in integer form a) # include & lt;

System environment: Centos5.6X86 _ 64: about how to install two identical software packages in yuminstall, I just got on the 64-bit Cetnos system today and want to install mysql, after yuminstallmysql is used, I find that yum has i386 and x86_64

Method 1: cat/etc/issue returned results: Ubuntu6.06.2LTS \ n \ l Method 2: sudolsb_release-a returned results: NoLSBmodulesareavailable. DistributorID: UbuntuDescription: Ubuntu6.06.2LTSRelease... Method 1:   Cat/etc/issue   Returned

For linux and windows shared folders, you must first install samba to ACCESS linux folders from windows. 1. configure the shared folder vi/etc/samba/smb. conf example: [filename] path/filecommentfilebrowseableyeswritableyes... for linux and windows

Configure the static IP address in ubuntu. the path of the static IP address is Java code/etc/network/interfaces. the configuration is as follows: www.2cto. comJava code autoeth0 // use the first network adapter ifaceeth0inetstatic // statically

Solve the problem that cacti does not display a diagram in Ubunut. after cacti is installed in ubuntu, sometimes there will be no image when it is set correctly, generally because of the rrd file, first, go to the cacti installation path and check

The sar Command reports the error Cannotopen/var/log/sa/sadd: Nosuchfi... the sar monitoring tool should be installed on your own. if the system is not installed, you can download and install unzip T at

Shell Features 1. explain the commands entered by the user and return the results to the user. 2. shell is the interface program Tip between the user and the system: similar to command.com for batch processing in windows. 1. view the types of shell

When you use vim to open a file containing Chinese characters, garbled characters may occur due to improper configuration. in this case, do not panic. put the following settings in your vimrc: setfencsutf-8, chinese, latin1fencutf-8encutf-8 multiple

Install dropbox1 in linuxmint13maya, and install nautilus-dropboxJava code sudoapt-getinstallnautilus-dropbox through the terminal to install nautilus-dropbox through the software center. However, the installation is just an empty shell, after the