~~~ [root@iZ23w9ljtgdZ etc]# yum install centos-release-scl-rh Loaded plugins: security Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package centos-release-scl-rh.noarch 0:2-3.el6.centos will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================== Package Arch Version Repository Size ======================================================================================================================================================== Installing: centos-release-scl-rh noarch 2-3.el6.centos extras 12 k Transaction Summary ======================================================================================================================================================== Install 1 Package(s) Total download size: 12 k Installed size: 19 k Is this ok [y/N]: Y Downloading Packages: centos-release-scl-rh-2-3.el6.centos.noarch.rpm | 12 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : centos-release-scl-rh-2-3.el6.centos.noarch 1/1 Verifying : centos-release-scl-rh-2-3.el6.centos.noarch 1/1 Installed: centos-release-scl-rh.noarch 0:2-3.el6.centos Complete! [root@iZ23w9ljtgdZ etc]# ~~~ 搜索 ~~~ [root@iZ23w9ljtgdZ etc]# yum search php Loaded plugins: security http://mirror.centos.org/centos/6/sclo/x86_64/rh/repodata/repomd.xml: [Errno 12] Timeout on http://mirror.centos.org/centos/6/sclo/x86_64/rh/repodata/repomd.xml: (28, 'connect() timed out!') Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: centos-sclo-rh. Please verify its path and try again ~~~ 安装 ~~~ [root@iZ23w9ljtgdZ etc]# yum install centos-release-SCL Loaded plugins: security http://mirror.centos.org/centos/6/sclo/x86_64/rh/repodata/repomd.xml: [Errno 12] Timeout on http://mirror.centos.org/centos/6/sclo/x86_64/rh/repodata/repomd.xml: (28, 'connect() timed out!') Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: centos-sclo-rh. Please verify its path and try again ~~~ ~~~ [root@iZ23w9ljtgdZ etc]# yum install scl-utils-build Loaded plugins: security http://mirror.centos.org/centos/6/sclo/x86_64/rh/repodata/repomd.xml: [Errno 12] Timeout on http://mirror.centos.org/centos/6/sclo/x86_64/rh/repodata/repomd.xml: (28, 'connect() timed out!') Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: centos-sclo-rh. Please verify its path and try again ~~~