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@@ -8,77 +8,92 @@
 ## 1、基本环境：
        CentOS7、libfastcommon、Berkeley、FastDHT
 ## 2、安装前需要的环境gcc
-`yum install make cmake gcc gcc-c++`
-## 3、正式安装
-`cd /usr/local/src`
+```
+yum install make cmake gcc gcc-c++
+cd /usr/local/src
+``
 ### ①安装libfastcommon   (安装FastDFS应该已经装了。无需重复安装)
-`unzip libfastcommon-master.zip`
-`cd libfastcommon-master`
-`./make.sh && ./make.sh install`
-
+```
+unzip libfastcommon-master.zip
+cd libfastcommon-master
+./make.sh && ./make.sh install
+```
 ### ②安装 Berkeley DB
-`wget http://download.oracle.com/berkeley-db/db-6.2.32.tar.gz`
-`cd /usr/local/src/db-6.0.30/ build_unix/`
-`chmod 777 ../dist/configure`
-`../dist/configure --prefix=/usr/local/db-6.2.32`
-`make && make install`
+```
+wget http://download.oracle.com/berkeley-db/db-6.2.32.tar.gz
+cd /usr/local/src/db-6.0.30/ build_unix/
+chmod 777 ../dist/configure
+../dist/configure --prefix=/usr/local/db-6.2.32
+make && make install
+```
 
 ### ③安装fastDHT
-`cd /usr/local/src/`
-`git clone https://github.com/happyfish100/fastdht.git --depth 1`
-`cd fastdht-master `
-`#编译之前需要先修改make.sh文件。在大约27行修改CFLAGS为：CFLAGS='-Wall -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -I/usr/local/db-6.2.32/include/ -L/usr/local/db-6.2.32/lib/'`
-`./make.sh && ./make.sh install`
+```
+cd /usr/local/src/
+git clone https://github.com/happyfish100/fastdht.git --depth 1
+cd fastdht-master 
+#编译之前需要先修改make.sh文件。在大约27行修改CFLAGS为：CFLAGS='-Wall -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -I/usr/local/db-6.2.32/include/ -L/usr/local/db-6.2.32/lib/'
+./make.sh && ./make.sh install
+```
 最后会在/usr/local/bin生成安装后的文件，在/etc/fdht下生成配置文件。
 
 # 二、环境配置
 
 ## 1、创建目录
-
-     `mkdir /fastdht`
-
+```
+    mkdir /fastdht
+``
 ## 2、修改fdhtd.conf文件
-`vim /etc/fdht/fdhtd.conf`
-`port=11411`
-`base_path=/fastdht`
-`#include /etc/fdht/fdht_servers.conf`
-
+```
+vim /etc/fdht/fdhtd.conf
+port=11411
+base_path=/fastdht
+#include /etc/fdht/fdht_servers.conf
+```
 ## 3、修改fdht_servers.conf文件
 
-`vim /etc/fdht/fdht_servers.conf`
-`group_count = 2   #数字可自定义`
-`group0 = 192.168.224.223:11411`
-`group1 = 192.168.224.223:11411`
+```
+vim /etc/fdht/fdht_servers.conf
+group_count = 2   #数字可自定义
+group0 = 192.168.224.223:11411
+group1 = 192.168.224.223:11411
+```
 
 ## 4、修改fdht_client.conf文件
-`vim /etc/fdht/fdht_client.conf`
-`keep_alive=1  #本选项关联 storaged.conf文件`
-`base_path= /fastdht `
-`#include /etc/fdht/fdht_servers.conf #注意： #和include之间没有空格）`
+```
+vim /etc/fdht/fdht_client.conf
+keep_alive=1  #本选项关联 storaged.conf文件
+base_path= /fastdht 
+#include /etc/fdht/fdht_servers.conf #注意： #和include之间没有空格）
+```
 ## 5、修改storage.conf文件
-`vim /etc/fdfs/storage.conf`
+```vim /etc/fdfs/storage.conf
 #是否检测上传文件已经存在。如果已经存在，则不存在文件内容，建立一个索引链接以节省磁盘空间
-`line 195:  check_file_duplicate=1`
+line 195:  check_file_duplicate=1
 # 当上个参数设定为1时 ， 在FastDHT中的命名空间
-`line 206:  key_namespace=FastDFS`
+line 206:  key_namespace=FastDFS
 #长连接配置选项，如果为0则为短连接 1为长连接
-`line 210  keep_alive=1 `
+line 210  keep_alive=1 
 #可以通过 #include filename 方式来加载 FastDHT servers 的配置
-`line 217:  #include /etc/fdht/fdht_servers.conf`
+line 217:  #include /etc/fdht/fdht_servers.conf
+```
 
 三、启动FastDHT
 
 1、启动命令：
-
+```
 fdhtd /etc/fdhtd/fdhtd.conf
+```
 2、重启命令：
+```
 fdhtd /etc/fdht/fdhtd.conf restart
+```
 3、出错排查
+```
 若缺少libdb-6.0.so
-第一步：cp /usr/local/db-6.0.30/lib/libdb-6.0.so /usr/lib/
-第二步：查看动态链接库是否全链接完毕
-## ldd /usr/local/bin/fdhtd
-由图中可知缺少libdb-6.0.so
+cp /usr/local/db-6.0.30/lib/libdb-6.0.so /usr/lib/
+ldd /usr/local/bin/fdhtd
+``
 ## 4、执行ldconfig命令
 ldconfig
 (ldconfig命令的用途, 主要是在默认搜寻目录(/lib和/usr/lib)以及动态库配置文件/etc/ld.so.conf内所列的目录下, 搜索出可共享的动态链接库(格式如lib*.so*), 进而创建出动态装入程序(ld.so)所需的连接和缓存文件. 缓存文件默认为/etc/ld.so.cache, 此文件保存已排好序的动态链接库名字列表)