轉(zhuǎn)自Andy Niu ----程序，籃球与涡，羽毛球惹谐，科普
1、開(kāi)源軟件往往做的非常出色驼卖，錯(cuò)誤的時(shí)候氨肌，會(huì)告訴你原因，以及怎么修改酌畜，仔細(xì)閱讀就能明白怎囚。比如這個(gè)錯(cuò)誤：
[root@localhost src]# ./redis-cli -h 172.16.2.16 -p 6379
172.16.2.16:6379> get name
(error) DENIED Redis is running in protected mode because protected mode is enabled, no bind address was specified,
no authentication password is requested to clients. In this mode connections are only accepted from the loopback interface.
If you want to connect from external computers to Redis you may adopt one of the following solutions:
1) Just disable protected mode sending the command 'CONFIG SET protected-mode no' from the loopback interface by connecting to Redis from the same host the server is running, however MAKE SURE Redis is not publicly accessible from internet if you do so. Use CONFIG REWRITE to make this change permanent.
2) Alternatively you can just disable the protected mode by editing the Redis configuration file, and setting the protected mode option to 'no', and then restarting the server.
3) If you started the server manually just for testing, restart it with the '--protected-mode no' option.
4) Setup a bind address or an authentication password. NOTE: You only need to do one of the above things in order for the server to start accepting connections from the outside.
已經(jīng)告訴錯(cuò)誤原因：默認(rèn)情況下redis運(yùn)行在保護(hù)模式（這種模式下，訪(fǎng)問(wèn)不需要密碼）桥胞，但是這種模式只允許本地回路訪(fǎng)問(wèn)恳守。
按照第二種方式修改。
# are explicitly listed using the "bind" directive.
protected-mode no
2贩虾、重新啟動(dòng)redis服務(wù)催烘，要想配置文件起效，啟動(dòng)的時(shí)候缎罢，必須指定配置文件伊群。如下：
[root@localhost src]# ./redis-server ../redis.conf
但是考杉，這個(gè)時(shí)候從外部連接，報(bào)錯(cuò)：
[root@localhost src]# ./redis-cli -h 172.16.2.16 -p 6379
Could not connect to Redis at 172.16.2.16:6379: Connection refused
3舰始、查看監(jiān)聽(tīng)信息崇棠，如下：
[root@localhost src]# netstat -anp|grep 6379
tcp? ? ? ? 0? ? ? 0 127.0.0.1:6379? ? ? ? ? ? ? 0.0.0.0:*? ? ? ? ? ? ? ? ? LISTEN? ? ? 4201/./redis-server
原因是配置文件redis.conf配置了只在127.0.0.1上綁定監(jiān)聽(tīng)，取消一下丸卷。
# IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES
# JUST COMMENT THE FOLLOWING LINE.
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#bind 127.0.0.1
4枕稀、重啟服務(wù)即可。
