ubuntu - Redis - Connect to Remote Server

Question

I've just install Redis succesfully using the instructions on the Quick Start guide on http://redis.io/topics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)

The server is part of Rackspace Cluster with Internal and External IPs. The host is running on port 6379 (standard for Redis)

I've added a row in the iptables to allow incoming connections from port 6379 as shown below:

 ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:6379 

In my PHP code on another server, I'm trying to connect to the new Redis server here:

$this->load->helper("iredis");

$hostname = "IP ADDRESS HERE";

$redis = new iRedis(array('hostname' => $hostname, 'port' => 6379));

Once I do this - I always get a connection refused. In my redis.conf file, I have the local bind command commented out, so it should be listening on more than the localhost IP. I can connect to the database on the local machine just not on another server. I've tried the external and internal IPs with no luck.

Any suggestions on getting this to work?

Answer 1

I've been stuck with the same issue, and the preceding answer did not help me (albeit well written).

The solution is here : check your /etc/redis/redis.conf, and make sure to change the default

bind 127.0.0.1

to

bind 0.0.0.0

Then restart your service (service redis-server restart)

You can then now check that redis is listening on non-local interface with

redis-cli -h 192.168.x.x ping

(replace 192.168.x.x with your IP adress)

Important note : as several users stated, it is not safe to set this on a server which is exposed to the Internet. You should be certain that you redis is protected with any means that fits your needs.