更改绑定地址后，MySQL 服务器将无法运行

Question

为了允许来自外部的连接，我编辑将默认值/etc/mysql/my.cnf更改为. 但是更改后，mysql 服务将无法启动。当我检查 mysql 错误日志时，它有这个：-bind-address127.0.0.154.200.xx.xx

131030 12:27:53 [Note] Server hostname (bind-address): '54.200.xx.xx'; port: 3306
131030 12:27:53 [Note]   - '54.200.xx.xx' resolves to '54.200.xx.xx';
131030 12:27:53 [Note] Server socket created on IP: '54.200.xx.xx'.
131030 12:27:53 [ERROR] Can't start server: Bind on TCP/IP port: Cannot assign requested address
131030 12:27:53 [ERROR] Do you already have another mysqld server running on port: 3306 ?
131030 12:27:53 [ERROR] Aborting

服务器位于 Amazon EC2 上，运行 Ubuntu 12.04 LTS。知道问题是什么吗？

ubuntu@ip-172-31-xx-xxx:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 12:ad:52:a1:9b:a9  
          inet addr:172.31.xx.xxx  Bcast:172.31.xx.xxx  Mask:255.255.240.0
          inet6 addr: fe80::10ad:52ff:fea1:9ba9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1014 errors:0 dropped:0 overruns:0 frame:0
          TX packets:749 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:87102 (87.1 KB)  TX bytes:138261 (138.2 KB)
          Interrupt:25 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:152 errors:0 dropped:0 overruns:0 frame:0
          TX packets:152 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:11740 (11.7 KB)  TX bytes:11740 (11.7 KB)

Answer 1

如果此 IP 不在您的系统上，则您无法侦听该 IP。这很清楚，不是吗？