Linux Redis启用远程连接，linuxredis启用

Linux Redis启用远程连接，linuxredis启用

Linux上Redis要想被远程程序通过6379接口telnet通。需要满足一下几个条件

1.     redis-server  ../conf/redis.conf   运行了。 并且telnet localhost 6379是通的。

2.    conf/redis.conf  里面的

bind 127.0.0.1 ::1 这一行注释掉。 

这里的bind指的是只有指定的网段才能远程访问这个redis。  注释掉后，就没有这个限制了。

或者bind 自己所在的网段

3.    conf/redis.conf里面

protected-mode 要设置成no      （默认是设置成yes的， 防止了远程访问，在redis3.2.3版本后）

4. 看服务器用的是firewall-cmd  还是iptables

如果是iptables，就vim /etc/sysconfig/iptables

增加一行

-A INPUT -p tcp -m state --state NeW -m tcp --dport 6379 -j ACCEPT

结果如下

# Generated by iptables-save v1.4.21 on Sat May 13 16:49:26 2017
*filter
:INPUT DROP [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [180:33265]
:syn-flood - [0:0]
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 21 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 20000:30000 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
-A INPUT -p tcp -m state --state NeW -m tcp --dport 3306 -j ACCEPT
-A INPUT -p tcp -m state --state NeW -m tcp --dport 6379 -j ACCEPT

-A INPUT -p icmp -m limit --limit 100/sec --limit-burst 100 -j ACCEPT
-A INPUT -p icmp -m limit --limit 1/sec --limit-burst 10 -j ACCEPT
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn-flood
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A syn-flood -p tcp -m limit --limit 3/sec --limit-burst 6 -j RETURN
-A syn-flood -j REJECT --reject-with icmp-port-unreachable
COMMIT
# Completed on Sat May 13 16:49:26 2017

然后重启iptables服务，在centos7里操作如下，并且查看iptables最终的设置信息

[root@VM_196_224_centos redis-3.2.9]# systemctl restart iptables
[root@VM_196_224_centos redis-3.2.9]# iptables -L
Chain INPUT (policy DROP)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:ssh
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:webcache
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:http
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:ftp
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpts:dnp:ndmps
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:https
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:mysql
ACCEPT     tcp  --  anywhere             anywhere             state NEW tcp dpt:6379
ACCEPT     icmp --  anywhere             anywhere             limit: avg 100/sec burst 100
ACCEPT     icmp --  anywhere             anywhere             limit: avg 1/sec burst 10
syn-flood  tcp  --  anywhere             anywhere             tcp flags:FIN,SYN,RST,ACK/SYN
REJECT     all  --  anywhere             anywhere             reject-with icmp-host-prohibited