最近本机访问 163.com 的 CentOS 镜像比较不稳定，体现在 ping 很低，但是 HTTP 连接很慢，yum 的 fastestmirror 也不太理想，所以一般都禁用之。

发现阿里云的镜像服务器，立马换了，便秘立刻就通了。

yum 镜像

官方源镜像

1 2 3 4 5 6

# 禁用 fastestmirror 插件 sed -i.backup ‘s/^enabled=1/enabled=0/’ /etc/yum/pluginconf.d/fastestmirror.conf # 备份 mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup # 使用阿里云镜像 wget -O /etc/yum.repos.d/CentOS-Base-aliyun.repo http://mirrors.aliyun.com/repo/Centos-6.repo

EPEL 镜像

1 2 3 4 5 6 7 8 9 10 11 12 13 14

# 安装 EPEL 源 wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6–8.noarch.rpm wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm # 使用阿里云镜像 if [[ ! -f /etc/yum.repos.d/epel.repo.backup ]]; then mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup 2>/dev/null || : fi if [[ ! -f /etc/yum.repos.d/epel-testing.repo.backup ]]; then mv /etc/yum.repos.d/epel-testing.repo /etc/yum.repos.d/epel-testing.repo.backup 2>/dev/null || : fi wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

PyPi 镜像

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

mkdir -p ~/.pip touch ~/.pip/pip.conf sed -i.backup -r \ ‘s/^index-url\s*=\s*.+$/index-url = http:\/\/mirrors.aliyun.com\/pypi\/simple\//’ \ ~/.pip/pip.conf # If file not changed, write contents back to pip.conf diff “~/.pip/pip.conf” “~/.pip/pip.conf.backup” &> /dev/null if [ $? -eq 0 ]; then cat > ~/.pip/pip.conf <<EOF [global] index-url = http://mirrors.aliyun.com/pypi/simple/ EOF fi

RubyGems 镜像

1 2	gem source -r https://rubygems.org/ gem source -a http://mirrors.aliyun.com/rubygems/