Open Redis port for remote connections

Question

I can ping pong Redis on the server     redis-cli ping PONG   But remotely  I got problems     src redis-cli -h REMOTE IP ping Could not connect to Redis at REMOTE IP 6379  Connection refused   In config  I got the standard port      Accept connections on the specified port  default is 6379    If port 0 is specified Redis will not listen on a TCP socket  port 6379   So maybe I should open port 6379 on the remote Ubuntu machine  How do I do it

User · Answer

Another possibly helpful note  Redis can be bound to multiple IPs - that s very helpful when you don t want to open it to entire world  0 0 0 0  but only make it accessible in local networks   sudo nano  etc redis redis conf add your local network IP to the end of bind setting   bind 127 0 0 1 10 0 0 1  restart the service  sudo service redis-server restart  Now you can easily access redis from other computers in same network  e g  redis-cli -h 10 0 0 1

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Bind  amp  protected-mode both are the essential steps  But if ufw is enabled then you will have to make redis port allow in ufw    Check ufw status ufw status if Status  active then allow redis-port ufw allow 6379 vi  etc redis redis conf Change the bind 127 0 0 1 to bind 0 0 0 0 change the protected-mode yes to protected-mode no

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Open the file at location  etc redis conf  Comment out bind 127 0 0 1  Restart Redis   sudo systemctl start redis service   Disable Firewalld   systemctl disable firewalld   Stop Firewalld   systemctl stop firewalld    Then try  redis-cli -h 192 168 0 2 ip  -a redis username

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A quick note that if you are using AWS ec2 instance then there is one more extra step that I believe is also mandatory  I missed the step-3 and it took me whole day to figure out to add an inbound rule to security group  Step 1 as previous   in your redis conf change bind 127 0 0 1 to bind 0 0 0 0  Step2 as previous    in your redis conf change protected-mode yes to protected-mode no  important for Amazon Ec2 Instance   Step3  In your current ec2 machine go to the security group  add an inbound rule  for custom TCP with 6379 port and select option  use from anywhere

User · Answer

1- Comment out bind 127 0 0 1  2- set requirepass yourpassword  then check if the firewall blocked your port  iptables -L -n  service iptables stop

User · Answer

In my case  I m using redis-stable   Go to redis-stable path   cd  home ubuntu software redis-stable      Open the redis conf    vim redis conf      Change the bind 127 0 0 1 to bind 0 0 0 0      change the protected-mode yes to  protected-mode no      Restart the redis-server     etc init d redis-server stop  redis-server redis conf

User · Answer

For me  I needed to do the following   1- Comment out bind 127 0 0 1  2- Change protected-mode to no  3- Protect my server with iptables  https   www digitalocean com community tutorials how-to-implement-a-basic-firewall-template-with-iptables-on-ubuntu-14-04

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Open  REDIS HOME redis conf and uncomment requirepass -YOUR-PASSWORD-HERE- and write down your password in the specified lines  Login to redis using redis-cli and verify your password in the database using auth -YOUR-PASSWORD-HERE- command  Disable protected mode by changing its string in  REDIS HOME redis conf to protected-mode no  Search for all bind ports values and comment all of them  Just add bind 0 0 0 0 to  REDIS HOME redis conf file  Disable your firewall or open redis port  Start redis using   redis-server  REDIS HOME redis conf  Check the configuration via   redis-cli -h -YOUR-IP- -a -YOUR-PASSWORD-HERE-  Check the configuration via   redis-cli -h -YOUR-IP- ping

User · Answer

Did you set the bind option to allow remote access on the redis server   Before  file  etc redis redis conf   bind 127 0 0 1   After  bind 0 0 0 0   and run sudo service redis-server restart to restart the server  If that s not the problem  you might want to check any firewalls that might block the access   Important  If you don t use a firewall  iptables  ufw    to control who connects to the port in use  ANYONE can connect to this Redis instance  Without using Redis  AUTH that means anyone can access change delete your data  Be safe

User · Answer

A quick note that doing this without further securing your Redis server is not a good idea as it can leave you open to attack  Be sure to also implement AUTH or otherwise secure that  See http   redis io topics security for details

[ubuntu] Open Redis port for remote connections

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