# Mongrel runs on ipv6 now?

**URL:** <https://www.ruby-forum.com/t/mongrel-runs-on-ipv6-now/118534>\
**Category:** Rails\
**Created:** [October 28, 2007, 8:10am UTC](https://www.ruby-forum.com/t/mongrel-runs-on-ipv6-now/118534 "2007-10-28T08:10:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mgreenly](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/85f322/32.png) [@mgreenly](https://www.ruby-forum.com/u/mgreenly)\
**Post date:** [October 28, 2007, 8:10am UTC](https://www.ruby-forum.com/t/mongrel-runs-on-ipv6-now/118534/1 "2007-10-28T08:10:40Z")

</div>

I have this as a mongrel\_cluster.yml file:

* * *

cwd: /www/blog/flame-blog/current  
log\_file: log/mongrel.log  
port: “10010”  
environment: production  
address: 127.0.0.1  
pid\_file: /www/blog/flame-blog/shared/pids/mongrel.pid  
servers: 3

This SHOULD run the server on 127.0.0.1, right?

explorer@kechara:~\> telnet 127.0.0.1 10010  
Trying 127.0.0.1…  
telnet: Unable to connect to remote host: Connection refused

Hmm, this is strange… Mongrel is running. Then one time I typed  
‘localhost’ rather than 127.0.0.1:

explorer@kechara:~\> telnet localhost 10010  
Trying ::1…  
Connected to localhost.  
Escape character is ‘^]’.

And yes, a GET request there responds as my application.

This happened after I upgraded from mongrel and mongrel\_cluster 1.0.1  
to 1.0.3. I’d rather not backtrack to an older version, and have  
upgraded my apache load balancer config to do the right thing (using  
localhost as well) but… this is strange to me.

–Michael