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technology, people are also wondering if there is a simpler way to use virtual resources. "I want a SQL service, and you give me a virtual machine?" "This thinking has spawned PAAs and container technology, and interestingly, many PAAs providers are running on IaaS, such as the most popular is Heroku running on AWS. At the same time, the underlying technology that PAAs relies on is the standard deliverable of CaaS.PAAs simplifies the deployment and m

1. The microblog model is as follows:2, the creation of Weibo resources, the command is as follows:$ rails Generate scaffold micropost content:text User_id:integer #生成微博资源$ bundle EXEC Rake db:migrate #执行迁移, update the database, use the new data model3, the content of micro-blog restrictions(1) Limit the length of WeiboIn the APP/MODELS/MICROPOST.RBclass Micropost activerecord::base validates:content, length:{maximum: }end(2) Weibo cannot be emptyclass Micropost activerecord::base validates:cont

Prerequisites:1. Git installed2. Use rbenv or RVM to install Ruby 1.9.3 or later3. A supported JavaScript runtime environment with EXECJS installedFirst, install the octopress1 git clone git://github.com/imathis/octopress.git octopress2 cd octopressSecond, installation dependence1 Install bundler 2 InstallEncounter problems Gem::remotefetcher::fetcherror:errno::econnreset:connection Reset by Peer-ssl_connect (https://rubygems.org/gems/ Tilt-2.0.1.gem)An error occurred while installing T

/centos/5.5/ OS /?basearch/ Gpgcheck = 1 [Update] Name = Red Hat Enterprise Linux $ releasever-Updates Baseurl = http://mirrors.sohu.com/centos/5.5/updates/?basearch/ Gpgcheck = 1 [Extras] Name = Red Hat Enterprise Linux $ releasever-Extras Baseurl = http://mirrors.sohu.com/centos/5.5/extras/?basearch/ Gpgcheck = 1 [Addons] Name = Red Hat Enterprise Linux $ releasever-Addons Baseurl = http://mirrors.sohu.co

local key file can only be verified with the key on the server.# Released updates# This Section points to the software package required for software upgrade.[Updates]Name = CentOS-$ releasever-UpdatesUsing list = http://mirrorlist.centos.org /? Release = $ releasever arch = $ basearch repo = updates // This path corresponds to the update folder on the server, that is, the software package is automatically found in the updates folder on the server.# Baseurl = http://developer.centos.org/centos

the yum rpm-ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm rpm-ivh yum-metadata-parser-1.1.2-16.el6.i686.rpm rpm-ivh yum-3.2.29-40.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm note that the last two packages must be installed simultaneously, otherwise they will depend on each other. 4. update the repo file mv/etc/yum. repos. d/rhel-debuginfo.repo/etc/yum. repos. d/rhel-debuginfo.repo.repo.bak vi/etc/yum. repos. d/rhel-debuginfo.repo content: [base] name = CentOS-$ relea

source configuration file. I downloaded the CentOS 5 configuration. www.linuxidc.com needs some modifications to use it on CentOS6. I have already changed the source image. I use 163 of the source images in China. [Base] Name=CentOS-6-Base Repo=OS Baseurl=Http: // Mirrors.163.com/centos/6/ OS /?basearch/ Gpgcheck=1 Gpgkey=Http: // Developer.centos.org/centos/rpm-gpg-key-centos-6 # Released updates [Update] Name=CentOS-6-Updates Baseurl=Http: // Mirrors.163.com/centos/6/updates/?bas

Baseurl = http://centos.ustc.edu.cn/centos/5/ OS /?basearch/ Gpgcheck = 1 Enabled = 1 Gpgkey = http:/centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5 # Released updates [Updates] Name = CentOS-$ releasever-Updates Baseurl = http://centos.ustc.edu.cn/centos/5/updates/?basearch/ Gpgcheck = 1 Enabled = 1 Gpgkey = http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5 # Packages used/produced in the build but not released [Addons] Name = CentOS-$ releasev

Installation Tools# Yum install yum-utilsSet Source:[Base-src]CentOS-5.4-Base src-Base url = http://vault.centos.org/5.4/ OS /SRPMS/# Items list = http://mirrorlist.centos.org /? Release = 5.4 arch = SRPMS repo = OSGpgcheck = 1Gpgkey = http://vault.centos.org/RPM-GPG-KEY-CentOS-5[Updates-src]Name = CentOS-5.4-Updates src-centosBase url = http://vault.centos.org/5.4/updates/SRPMS/# Items list = http://mirrorlist.centos.org /? Release = 5.4 arch = SRPMS repo = updatesGpgcheck = 1Gpgkey = http:

install oxygen-cursor-theme # Oxygen topic mouse pointerSudo apt-get install oxygen-cursor-theme-extra # Oxygen subject mouse pointer of other colorsSudo apt-get install kdebase-workspace-wallpapers # More wallpapersSudo apt-get install plasma-wallpapers-addons # more wallpaper extensionsPartsSudo apt-get install plasma-widget-smooth-tasks # smooth-tasks taskbarSudo apt-get install plasma-widget-lancelot # Lancelot program starterSudo apt-get install

ThinkPHP, thinkphp Official Website Solution: The OneThink site cannot be recognized by the uyan background. Enable the uyan plug-in function, but the OneThink site cannot be detected by the uyan background. The uyan code generated on the page is: 1 You will find that the uid is not set. View the uyan code in \ Addons \ SocialComment \ comment.html. 1 You will find that the variable $ addons. config is in

Here is a cliché about the behavior extensions and plugins in thinkphp (recommended). Small very good, now share to everyone, also for everyone to make a reference. Principle Analysis The correspondence between the label and the class, such as ' App_init ' =>array (' Common\behavior\inithook '), is loaded into the static variable $tags in the hook class via the import or Add method in the Hook class. When executing a static method listen or Exec method in a hook (called Exec in the Listen metho

Article Title: how to configure YUM source in RHEL5 System. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic categories 1. Install yum 　 2. modify. Repo File 　 Ccd/etc/yum. repos. d/ 　 # Vi CentOS-Base.repo 　 Write the following content: 　 　　 [Base]CentOS-5-Base# Items list = http://mirrorlist.centos.org /? Release = $ releasever5 arch = $ basearch Repo = OS# Ba

/centos/6/updates/$basearch/Gpgcheck=1Gpgkey=http://mirrors.163.com/centos/rpm-gpg-key-centos-6#packages used/produced in the build and not released#[addons]#name =centos-$releasever-addons#baseurl =http://mirrors.163.com/centos/$releasever/addons/$basearch/#gpgcheck =1#gpgkey =http://mirrors.163.com/centos/rpm-gpg-key-centos-6#additional packages that could be u

[Base]name=centos-$releasever-basebaseurl=http://mirrors.163.com/centos/6/os/$basearch/Gpgcheck=1Gpgkey=http://mirrors.163.com/centos/rpm-gpg-key-centos-6#released Updates[Updates]name=centos-$releasever-updatesbaseurl=http://mirrors.163.com/centos/6/updates/$basearch/Gpgcheck=1Gpgkey=http://mirrors.163.com/centos/rpm-gpg-key-centos-6#packages used/produced in the build and not released#[addons]#name =centos-$releasever-

-debuginfo.repo.repo.bakVi/etc/yum.repos.d/rhel-debuginfo.repoThe contents are:[Base]name=centos-5-base#mirrorlist=http://mirrorlist.centos.org/?release= $releasever 5arch= $basearch repo=os#baseurl =http://mirror.centos.org/centos/$releasever/os/$basearch/Baseurl=http://ftp.sjtu.edu.cn/centos/5/os/$basearch/gpgcheck=0Gpgkey=http://mirror.centos.org/centos/rpm-gpg-key-centos5#released Updates[update]name=centos-5-updates#mirrorlist=http://mirrorlist.centos.org/?release=4arch= $basearch repo=upda

1. Modify the source configuration file /etc/yum.repos.d/rhel-debuginfo.repoAdd the following to the content:[Base]Name=Red Hat Enterprise Linux $releasever-base#mirrorlist =http://mirrorlist.centos.org/?release= $releasever 5arch= $basearch reo=os#baseurl =http://mirror.centos.org/centos/$releasever/os/$basearch/baseurl=http://ftp.sjtu.edu.cn/centos/5/os/$basearch/Gpgcheck=1Gpgkey=http://mirror.centos.org/centos/rpm-gpg-key-centos5#released Updates[UPDATE]Name=Red Hat Enterprise Linux $releasev

-$releasever-basebaseurl=http://mirrors.163.com/centos/6/os/$basearch/Gpgcheck=1Gpgkey=http://mirrors.163.com/centos/rpm-gpg-key-centos-6#released Updates[Updates]name=centos-$releasever-updatesbaseurl=http://mirrors.163.com/centos/6/updates/$basearch/Gpgcheck=1Gpgkey=http://mirrors.163.com/centos/rpm-gpg-key-centos-6#packages used/produced in the build and not released#[addons]#name =centos-$releasever-addons