1、官網下載安裝包
http://nginx.org/en/download.html，選擇適合Linux的版本，這里選擇最新的版本，下載到本地后上傳到服務器或者centos下直接wget命令下載。
切換到/usr/local目錄，下載軟件包
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# cd /usr/local
# wget http://nginx.org/download/nginx-1.11.5.tar.gz
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2、安裝nginx
先執行以下命令，安裝nginx依賴庫,如果缺少依賴庫，可能會安裝失敗，具體可以參考文章后面的錯誤提示信息。
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# yum install gcc-c++
# yum install pcre
# yum install pcre-devel
# yum install zlib
# yum install zlib-devel
# yum install openssl
# yum install openssl-devel
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解壓安裝包
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# tar -zxvf nginx-1.11.5.tar.gz
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nginx被解壓到了/usr/local/nginx-1.11.5 目錄下（不要把壓縮包解壓到/usr/local/nginx目錄下，或者將解壓后的目錄重命名為nginx，因為nginx會默認安裝到/usr/local/nginx目錄下），切換到nginx-1.11.5/目錄
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# cd /usr/local/nginx-1.11.5/
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執行# ./configure
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# ./configure
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該操作會檢測當前系統環境，以確保能成功安裝nginx，執行該操作后可能會出現以下幾種提示：
checking for OS
+ Linux 3.10.0-123.el7.x86_64 x86_64
checking for C compiler ... not found
./configure: error: C compiler cc is not found
如果出現以上錯誤提示信息，執行yum install gcc-c++安裝gcc，
./configure: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option, or install the PCRE library into the system, or build the PCRE library
statically from the source with nginx by using --with-pcre=<path> option.
如果出現上面提示，表示缺少PCRE庫
./configure: error: the HTTP gzip module requires the zlib library.
You can either disable the module by using --without-http_gzip_module
option, or install the zlib library into the system, or build the zlib library
statically from the source with nginx by using --with-zlib=<path> option.
如果出現以上提示，表示缺少zlib庫
如果沒有出現./configure: error提示，表示當前環境可以安裝nginx，執行make和make install編譯nginx
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# make
# make install
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沒有出錯的話，表示nginx已經成功安裝完成，默認安裝位置為/usr/local/nginx,之前的/usr/local/nginx-1.11.5/可以刪除掉了。
如果出現cp: 'conf/koi-win' and '/usr/local/nginx/conf/koi-win' are the same file，可能是你把安裝包解壓到了/usr/local/nginx目錄，解決辦法是將該目錄重命名為其他名稱后再執行make,make install.
3、配置nginx開機啟動
切換到/lib/systemd/system/目錄，創建nginx.service文件vim nginx.service
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# cd /lib/systemd/system/
# vim nginx.service
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文件內容如下：
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[Unit]
Description=nginx
After=network.target
[Service]
Type=forking
ExecStart=
/usr/local/nginx/sbin/nginx
ExecReload=
/usr/local/nginx/sbin/nginx
reload
ExecStop=
/usr/local/nginx/sbin/nginx
quit
PrivateTmp=
true
[Install]
WantedBy=multi-user.target
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退出並保存文件，執行systemctl enable nginx.service使nginx開機啟動
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# systemctl enable nginx.service
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systemctl start nginx.service 啟動nginx
systemctl stop nginx.service 結束nginx
systemctl restart nginx.service 重啟nginx
4、驗證是否安裝成功
輸入http://服務器IP/ 如果能看到nginx的界面，就表示安裝成功了
