functional requirements for cloud computing

returning? Yes, why do you have to update it regularly? The answer is very simple, because if the majority of the cache is the latest data, only compare the version without the actual update operation, the performance is very small and small, so the regular update, in the event of slave node downtime from the backup node to work, a great help.Finally, say the push (push) mode, that is, every time a data change is forced to update all caches. This approach consumes performance, but is more secur

Intranet security behavior auditing can find a lot of Intranet security "moles", but there is always a debate in China regarding whether "behavior auditing infringes on personal privacy. From the perspective of enterprises, deployment Behavior Monitoring and behavior audit products are understandable, which is an important step for enterprise compliance. For example, archive and auditor of a mail are all necessary tasks. From the technical point of view, behavioral auditing does not necessarily

access machine, high network occupancy, CPU, memory, low disk working PC, when high time low, especially those who need to shift the business, a group of people, the machine is idle (or not, but shared PCs can easily lead to work scene or file loss) cache server, IO low application server, general memory And IO are relatively low 3. How to deploy a virtualized host 3.1 Horizontal Division For large companies, the cloud is too big, will lead to manag

; 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

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

, sort, uniq, tail, head to analyze the log, then you need to Splunk. Can handle the regular log format, such as Apache, squid, System log, Mail.log these. Index all logs first, then cross-query to support complex query statements. And then show it in an intuitive way. Logs can be sent to the Splunk server via file, or it can be transmitted in real time via the network. or a distributed log collection. In short, a variety of log collection methods are supported. Open source software: Http://ww

client'sSource addresses, each of which defines a destination DNS zone but calls a different address library file08. What are the requirements for a PXE network batch installation, the role of each component, and how to implement unattended installationsDHCP Server: Provide the client with parameters such as IP address, and inform the next server address, startup file nameTFTP Server: Provides the client with boot files, boot menu configuration, kern