MongoDB bind_ip won't work unless set to 0.0.0.0

Question

I really tried, even reinstall the MongoDB.

And it's the same to MongoDB bind_ip error: bind() failed errno:99 Cannot assign requested address for socket

It works if set bind_ip to: 0.0.0.0, or 127.0.0.1

$ sudo service mongod start mongod start/running, process 30040 $ sudo service mongod restart mongod stop/waiting mongod start/running, process 29704 $ mongo --port 19708 MongoDB shell version: 3.0.3 connecting to: 127.0.0.1:19708/test > 

It won't work if set bing_ip to: 127.0.0.1,192.118.96.10,42.112.36.110

$ sudo service mongod start mongod start/running, process 29969 $ sudo service mongod restart stop: Unknown instance: mongod start/running, process 29766 $ mongo --port 19708 MongoDB shell version: 3.0.3 connecting to: 127.0.0.1:19708/test 2015-06-17T06:32:34.625+0000 W NETWORK  Failed to connect to 127.0.0.1:19708 reason: errno:111 Connection refused 2015-06-17T06:32:34.627+0000 E QUERY Error: couldn't connect to server   127.0.0.1:19708 (127.0.0.1), connection attempt failed at connect (src/mongo/shell/mongo.js:181:14) at (connect):1:6 at src/mongo/shell/mongo.js:181 exception: connect failed 

locations:

$ which mongod /usr/bin/mongod $ which mongo /usr/bin/mongo 

configurations in /etc/mongod.conf

dbpath=/var/lib/mongodb  logpath=/var/log/mongodb/mongod.log  logappend=true  port = 19708  # ips, eg: # private ip for mongodb server: 192.118.96.10 # public ip for remote app server: 42.112.36.110  bind_ip = 127.0.0.1,192.118.96.10,42.112.36.110  auth = true 

Thanks in advance.

Answer 1

Edit: I do not know wether I was simply wrong with my answer or if the behavior of bind_ip was changed, but it is possible to bind to multiple, distinct IPs

bind_ip:127.0.0.1,10.0.0.1,8.8.8.8 

So, most likely, one of the IP addresses mongod was assigned to bind to did not exist on the machine in question.

---

You can bind mongod only to one IP, with 0.0.0.0 being the alias for "listen on all available network interfaces".

So either use

bind_ip=127.0.0.1 

to listen to the loop back interface or

bind_ip=<someIP> 

to listen to that IP only or

bind_ip=0.0.0.0 

to listen to all available IPs on the system.

If you need to listen to several specific IPs, it is very likely that your system design is somehow screwed.