1、首先關閉防護牆或者設置規則通過且關閉selinux
2、nginx-1.14.2版本（編譯安裝）-自定義安裝路徑
3、開啟nginx目錄瀏覽
以上步驟請參考前文：https://www.cnblogs.com/omgasw/p/10194698.html
4、調整分區大小
把/dev/centos/home下的50G變為8G
1.增加
1.1去掉掛載
df –Th #查看分區信息
umount /home
1.2減小home,
lvreduce -L 8G /dev/centos/home 或 -42G
1.3擴容/dev/centos/root
lvextend -L 42G /dev/centos/root
xfs_growfs /dev/centos/root
2.減小
xfs是不支持減少的，但無法使用resize2fs，會報錯：Couldn't find valid filesystem superblock。意思就是減少后的邏輯分區需要通過mkfs.xfs命令重新格式化一下
5、使用Alien將RPM轉換成DEB
1.安裝Alien及其依賴包
要安裝alien到CentOS/RHEL 7中，你需要啟用EPEL和Nux Dextop倉庫
yum install epel-release -y
啟用Nux Dextop倉庫的包的當前最新版本是0.5（2015年8月10日發布），在安裝之前你可以查看http://li.nux.ro/download/nux/dextop/el7/x86_64/上是否有更新的版本
rpm --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm yum update && yum install alien -y
2.將deb轉換成rpm包
wget（例：dateutils_0.3.1-1.1_amd64.deb）
alien dateutils_0.3.1-1.1_amd64.deb
在Linux中將deb轉換成rpm
重要：（請注意alien是怎樣來增加目標包的次版本號的，如果你想要無視該行為，請添加-keep-version標識）
6、創重新構建RPM包
如果我們嘗試馬上安裝該包，我們將碰到些許問題：
rpm -ivh dateutils-0.3.1-2.1.x86_64.rpm
要解決該問題，我們需要啟用epel-testing倉庫，然后安裝rpmbuild工具來編輯該包的配置以重建包：
yum --enablerepo=epel-testing install rpmrebuild -y
然后運行
rpmrebuild -pe dateutils-0.3.1-2.1.x86_64.rpm
它會打開你的默認文本編輯器，請轉到%files並刪除涉及到錯誤信息中提到的目錄的行，然后保存文件並退出：
退出該文件后，將提示你繼續去重構，如果你選擇“Y”，該文件會重構到指定的目錄（與當前工作目錄不同）：
7、apt-mirror配置
1.安裝apt-mirror
rpm –ivh apt-mirror_0.5.4-2.noarch.rpm
2.修改apt-mirror配置文件
在修改配置文件之前，我們首先要確定自己系統的版本，sudo lsb_release -a
#sudo lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
Codename代號的意思，16.04代號xenial，所以我們接下來的配置文件跟xenial有關，當然14.04代號是trusty，一樣的操作
打開清華大學開源鏡像
進入dists目錄，在目錄下找到跟系統代號相關問文件夾，一般是5個，將下面規則文本復制出來，把加粗部分替換成相應的5個文件目錄名。進入這5個目錄，里面有4個跟源有關的目錄（by-hash除外），目錄名與下面斜體部分比較，如果不一樣請修改
# 默認注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# 預發布軟件源，不建議啟用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
然后
vim /etc/apt/mirror.list
參考以下配置文件：
清空原有的配置文件，修改以下配置文件相應代號部分即可，如果想添加多個版本的源，可以依次在下面增加相應的規則（就是增加對應代號的源地址）
############# config ##################
# 以下注釋的內容都是默認配置，如果需要自定義，取消注釋修改即可
set base_path /yryun/ubuntu
# 鏡像文件下載地址
# set mirror_path $base_path/mirror
# 臨時索引下載文件目錄，也就是存放軟件倉庫的dists目錄下的文件（默認即可）
# set skel_path $base_path/skel
# 配置日志（默認即可）
# set var_path $base_path/var
# clean腳本位置
# set cleanscript $var_path/clean.sh
# 架構配置，i386/amd64，默認的話會下載跟本機相同的架構的源
set defaultarch amd64
# set postmirror_script $var_path/postmirror.sh
set run_postmirror 0
#如果報/bin/sh: 0: can't open /media/newsmy/ubuntu1204mirror/var/postmirror.sh，把set run_postmirror 0即可
# 下載線程數
set nthreads 20
set _tilde 0
############# end config ##############
# 清華大學開源 # 默認注釋了源碼鏡像以提高 apt update 速度，如有需要可自行取消注釋 # ubuntu 18.04 LTS deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse # 預發布軟件源，不建議啟用 # deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse # ubuntu 16.04 LTS deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse # 預發布軟件源，不建議啟用 # deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse # ubuntu 14.04 LTS deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse # 預發布軟件源，不建議啟用 # deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse # debian 9 deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free clean http://mirrors.tuna.tsinghua.edu.cn/ubuntu clean http://mirrors.tuna.tsinghua.edu.cn/debian
3.指向鏡像路徑
ln –s /yryun/ubuntu/mirror/mirrors.tuna.tsinghua.edu.cn/ubuntu/ /usr/local/nginx/html/pack/ubuntu ln –s /yryun/ubuntu/mirror/mirrors.tuna.tsinghua.edu.cn/debian/ /usr/local/nginx/html/pack/debian
4.開始同步
apt-mirror
等待很長時間（該鏡像差不多100G左右，具體時間看網絡環境）
注意：當apt-mirror 被意外中斷時，只需要重新運行即可，apt-mirror支持斷點續存；另外，意外關閉，需要在/var/spool/apt-mirror/var目錄下面刪除 apt-mirror.lock文件【 sudo rm apt-mirror.lock 】，之后執行apt-mirror重新啟動
5.創建自動同步
vim /etc/crontab
0 5 * * 2 root /usr/bin/apt-mirror >/dev/null 2>&1
8、客戶端配置
1.編輯/etc/apt/source.list，選擇相應的版本
# ubuntu 18.04 LTS deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ bionic main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ bionic-security main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ bionic-updates main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ bionic-backports main restricted universe multiverse
# ubuntu 16.04 LTS deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ xenial main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ xenial-security main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ xenial-updates main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ xenial-backports main restricted universe multiverse
# ubuntu 14.04 LTS deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ trusty main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ trusty-security main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ trusty-updates main restricted universe multiverse deb [arch=amd64] http://mirrors.yryun.com/ubuntu/ trusty-backports main restricted universe multiverse
# debian 9 deb [arch=amd64] http://mirrors.yryun.com/debian/ stretch main contrib non-free deb [arch=amd64] http://mirrors.yryun.com/debian/ stretch-updates main contrib non-free deb [arch=amd64] http://mirrors.yryun.com/debian/ stretch-backports main contrib non-free
2.更新apt-get源
sudo apt update