gartner report on cloud computing 2015

Zero-basic learning cloud computing and Big Data DBA cluster architect [Foundation December 14, 2015 Monday], dba 2015 1. On the first day, you can easily enter a form in the morning, record fingerprints, take photos, and introduce yourself. 2. In the afternoon, the instructor briefly introduced PC, switch, router,

As of 2015, the relevant Chinese national standards for cloud computing have been established: "Information Technology cloud Computing Overview and Glossary" GB project 20120570-t-469 Information technology Elastic

My 10 predictions for the cloud computing industry in 20151, by the middle of 2015, after the release of the K release, the staff of OpenStack difficult to deploy, unstable voice will gradually disappear, because we all realize that OpenStack is not good because we play, the small players change reason and sober. Although the OpenStack family has become a foregon

uses the RPM method, the Debian-like system uses the DEB method, the BSD-like system uses the TAR method)3Test your packaged application software installation package on a test machine or test machine4) Deploy the package to the system that needs it5) Verify its health on the deployment server6if necessary, you can restore the previous system structure and configuration2. Create a standard document • File system list • Third-party software list note the version information • configuration file

command-line mode: For I in {1..10};d o echo $i;d one =========================================== while loop statement usage while condition to meet cond Ition executes the cmd do-cmd-done bash-x to run the script in debug mode to display the script's running process until loop statement usage: Until condition--G t; does not satisfy the condition, then executes the cmd do cmd-done case multi-conditional Judgment Statement usage: Case value in value 1) CMD1; Value 2) CMD2;; Value

Iptablesiptables-restore iptables Restores the last saved iptables State iptables-save >/etc/sysconfig/ iptables can also be saved in this way. EL7 firewall firewalld1. editing mode firewall- Config graphical tool 2. Command line: firewall- cmd3 . Status control systemctl Restart Firewalld stop Kernel: Module 1. module: Provide some functions, need to load up, do not need to uninstall, can have a personalized control of the server. 2. View the modules that have been loaded lsmod3. Where

directory; 2. Get the step flow: Under the newly established directory, go to the INSTALL and README and other related files (important steps!); 3. Dependency Properties Software Installation: According to the content of Install/readme and install some dependent software (not necessary); 4. Establish makefile: detect the working environment with the Automatic detection program (configure or config) and establish the makefile file; 5. Compile: Make this program and use the Makefile in this direc

1. The first day is more relaxed, fill in the morning form, record fingerprints, take photos, do self-introduction.2. Afternoon teacher briefly introduced pc\ switch \ router \ tower server \ Rack Server (1U\2U) \ Blade server \ Tape Drive3. Teacher Chen Mr. Zhu, Preparatory qin teacherTecher ChenTecher Zhu 15000592742Techer Qing Long4. Turn on the computer and install the REDHAT7Terminal Biger/smaller/new Onectrl+shift+[+] Zoom Inctrl+[-] Zoom OutCtrl+shift+t New5 o'clock in the afternoon is ho

(2) Save Ipta Bles configuration Iptables-save >/etc/sysconfig/iptables #serverb: (1) Install software [[emailprotected] other]# rpm NGINX-1.8.0-1.EL7.NGX.X86_64.RPM (2) View software framework [[emailprotected] other]# rpm-ql nginx/etc/logrotate.d/nginx/etc/ Nginx/etc/nginx/conf.d/etc/nginx/conf.d/default.conf/etc/nginx/conf.d/example_ssl.conf/etc/nginx/fastcgi_ Params/etc/nginx/koi-utf/etc/nginx/koi-win/etc/nginx/mime.types/etc/nginx/nginx.conf/etc/nginx/scgi_params/etc /nginx/uwsgi_params/et

; Fastcgi_param Script_filename/usr/share/nginx/Yeliangcheng.com$fastcgi_script_name; Include Fastcgi_params; }}serverc{#迁移程序--Install the same package PHP PHP-mysql/mnt/item/nginx/epel/spawn-fcgi-1.6.3-5. el7.x86_64.rpm #启动服务并设置开机自启 systemctl start Spawn-fcgi; /sbin/chkconfig spawn-fcgi on #php相关文件Tar-jxf/usr/share/nginx/bbs.com/bbs.Tar. bz2}===================================================================================#测试serverb {#关闭数据库服务 systemctl stop mariadb #关闭spawn-f

variable that is only valid for code snippets within a function locally a=1title: Bash xxxx.SHInput-T5represents a triangle with 5 lines of paint-L7represents a draw slash 7 lines #!/bin/Bashtriangle () { forXinch$(seq 1$1) Do forYinch$(seq 1$(($1-$x))) Do Echo-N" " Done forZinch$(seq 1$((2* $x-1))) Do Echo-N"" DoneEcho Done}line () { forIinch$(seq 1$1) Do forXinch$(seq 1$i) Do Echo-N" " DoneEcho-

filesystem name (e.g. ext3) also lists-I: No hard disk capacity, and the number of inode to display du [-ahskm] file \ Directory name selection and parameters:-A: List all files and directory capacity, because the default is only the number of files in the directory underground-H: A more readable capacity format (g/M) Display-S: Lists the total, not the size of each directory-S: Do not include totals under sub-directories-K: List capacity display in Kbytes-m: Display du with MBytes listing capa

1. Single-arm routing Switch:switch (config) #vlanTenSwitch (config-vlan) #vlan -Switch (config-VLAN) #exitSwitch (config) #intf0/1Switch (config-if) #switch Access VLANTenSwitch (config-if)#intf0/2Switch (config-if) #switch Access VLAN -Switch (config-if)#intf0/3Switch (config-if) #switch mode Trunkrouter:router (config) #intf0/0Router (config-if) #no shutdownrouter (config-if)#intf0/0.1Router (config-SUBIF) #encapsulation dot1qTenRouter (config-SUBIF) #ip Add10.0.0.1 255.0.0.0Router (config-SU

) #network20.0.0.0Router (config-router) #network30.0.0.0r3:router (config) #interface FastEthernet0/0Router (config-if) #ip address dhcprouter (config-if) #no shutdownrouter (config-if) #interface fastethernet0/1Router (config-if) #ip Address40.0.0.1 255.0.0.0Router (config-if) #ip helper-address20.0.0.1Router (config-if) #no shutdownrouter (config-if) #router riprouter (config-router) #network20.0.0.0Router (config-router) #network40.0.0.0clear the configuration: Router (config) #erase startup

172.25.15.10 www.booboo.com >>/etc/hosts 2.server_name mail.dabao.com news.dabao.com www.news.dabao.com www.sports.dabao.com [[emailprotected] conf.d]# vim www.booboo.com.conf server {Listen 80; server_name ~www\. *\.booboo\.com; Location/{root/usr/share/nginx/booboo.com; Index index.html index.htm; }} [[[Emailprotected] conf.d]# vim www.dabao.com.conf server {Listen 80; server_name *.dabao.com; root/usr/share/nginx/dabao.com; Index index.html i

Label:Lvy Teacher Teaching Program, as well as a substitute shell part of the course, we all feel that the teacher does not work, the operation of the class is wrong, I think her foundation is not good. Moreover, she could not explain the reason, the student asked why, she did not know. Crash. To the XX training institutions after the reaction, said the teacher project experience, but if a person foundation is not, do more projects also no use Ah, all is wrong. This part has PDF, self-study. To

number2. Settings and references the first way to set up: references: [[email protected]~]# a[0]=1 Echo${a[0]} [[email protected]~]# a[1]=2[[Email protected]~]# a[2]=3Subscript starting from 0, 0 represents the first second setting: [[email protected]~]# b=(a b c) [[email protected]~]#Echo${b[0]}a[[email protected]~]#Echo${b[1]}b[[email protected]~]#Echo${b[2]}c[[email protected]~]# b= (a B c [ -]=carol)--You can skip a few elements directly to the 51 assignment [[email protected]~]