localhost defaults to ipv6 address instead of ipv4 on fedora linux. Can't connect to mongodb fr-CodePudding

After a system update on Fedora 36 Linux, Localhost alias now uses the ipv6 address by default which has broken a lot of my code. For instance:

// Connecting to MongoDB using mongoose on express (nodejs)
mongoose.connect('mongodb://localhost:27017/farmStand')
.then(()=>{
    console.log('Connected to Mongo');
})

Does not work and throws this error:

MongooseServerSelectionError: connect ECONNREFUSED ::1:27017

I've done some research and found multiple workarounds such as replacing localhost with 127.0.0.1, localhost4 or even removing the following line,

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

from from /etc/hosts,

# Loopback entries; do not change.
# For historical reasons, localhost precedes localhost.localdomain:
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
# See hosts(5) for proper format and other examples:
# 192.168.1.10 foo.mydomain.org foo
# 192.168.1.13 bar.mydomain.org bar

However since this the former forces me to change a lot of code and the later is not recommended by the hosts file itself, How do i return localhost to its former state or bind mongodb to ipv6?

CodePudding user response：

Start your MongoDB with this settings:

net:
  bindIpAll: true
  ipv6: true

Then it should work