前沿

在配置文件redis.conf中，默認(rèn)的bind 接口是127.0.0.1，也就是本地回環(huán)地址。這樣的話(huà)，訪問(wèn)redis服務(wù)只能通過(guò)本機(jī)的客戶(hù)端連接，而無(wú)法通過(guò)遠(yuǎn)程連接，

這樣可以避免將redis服務(wù)暴露于危險(xiǎn)的網(wǎng)絡(luò)環(huán)境中，防止一些不安全的人隨隨便便通過(guò)遠(yuǎn)程

連接到redis服務(wù)。

如果bind選項(xiàng)為空的話(huà)，那會(huì)接受所有來(lái)自于可用網(wǎng)絡(luò)接口的連接。

今天按裝??redis6之后在使用redis的時(shí)候出現(xiàn)連接不成功；安全組也開(kāi)放了到底是什么問(wèn)題呢？？

帶著疑問(wèn)我通過(guò)redis-cli連接發(fā)現(xiàn)

./redis-cli -h 指定ip -p 指定端口 -a 指定密碼

發(fā)現(xiàn)能夠正常連接，嗯應(yīng)該是port沒(méi)有設(shè)置。

后來(lái)使用了jedis實(shí)現(xiàn)測(cè)試

    @Test
    public void testJedisSingle() throws Exception {
            //創(chuàng)建一個(gè)jedis對(duì)象
        Jedis jedis = new Jedis("192.168.64.129",6379);
        jedis.set("test", "hello jedis");
        String string = jedis.get("test");
        System.out.println(string);
        jedis.close();
    }

后來(lái)得知。根據(jù)redis.conf配置文件中bind的值的不同，出現(xiàn)不同的提示信息；但是不影響Linux系統(tǒng)中redis的正常使用;

當(dāng)不存在bind時(shí)

 redis.clients.jedis.exceptions.JedisDataException: 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.

當(dāng)bind 本機(jī)ip地址時(shí)

代碼可以測(cè)試通過(guò)，但是Linux系統(tǒng)中出現(xiàn)問(wèn)題

  [root@root redis]# ./bin/redis-cli -c
  Could not connect to Redis at 127.0.0.1:6379: Connection refused
  Could not connect to Redis at 127.0.0.1:6379: Connection refused

當(dāng)bind 為默認(rèn)的127.0.0.1時(shí)

代碼測(cè)試不通過(guò)

 redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused: connect

那么這個(gè)bing參數(shù)該如何配置呢？

1.在bind中配置多個(gè)IP地址,bind 192.168.64.129 127.0.0.1 空格分割

2.將bind的值配置為bind 0.0.0.0  任何ip地址都能連接

注意

我最后就是設(shè)置成0.0.0.0了，因?yàn)椴⒉皇蔷€(xiàn)上環(huán)境，圖方便所以沒(méi)有指定指定的端口。大家如果是線(xiàn)上環(huán)境，這里要按照自己的情況進(jìn)行配置否則會(huì)有安全問(wèn)題。（ps之前的個(gè)人機(jī)器經(jīng)常被植入挖礦程序??）

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