1400260 - Need a higher number of connections to irc.mozilla.org from event location

Status: RESOLVED FIXED

(Infrastructure & Operations Graveyard :: Infrastructure: IRC, task)

Description

[Christian J.]

User Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20170811194703

Steps to reproduce:

We[1] have started meeting regularly for coding events physically in the same location[2], and when we tried to connect to Mozilla's IRC server on August 31 around 9 PM BST it told us that the max. number of connection is exceeded from our IP. I did check the IP an ssh connection to a server of mine would come from on this evening and it was 81.134.128.130, but I don't know whether the network of our host would use the same IP for IRC, the irc.mozilla.org server, or my buddy participants, and I also don't know whether it's going to be the same on our next meet up. If you really need it I will have to find out more from our host.

We were 12 people, but our host is pretty big (Skills Matter in London) so it's not unlikely that attendants of unrelated events of our host might have connected through the same IP as well.

[1] http://rustaceans.uk/
[2] We have co-organized our last event with other Rust coding groups in Rome and Cambridge at the same time (and our mass use or IRC was motivated by this fact, so that all attendants could ask questions across all groups). They didn't seem to run into the problem but maybe that was luck.

Comment 1

[Ludovic Hirlimann [:Usul]]

We need the IP when you have the issue can you poke your host to figure out if the IP is fixed or not ?

Comment 2

[Christian J.]

I've got the answer from our host:

  >  our IP address range is 81.134.128.130/28.

Can you allow for at least 30 connections from any IP in this range? On an earlier event we had 42 participants, on the last one we were 12, tonight it looks like we might be a tad more, 12-16 or so. It's possible we will slowly get higher participation numbers, also this would include some margin for visitors at other events of our host using your server at the same time.

Thanks,
Christian.

Comment 3

[Brian Hourigan [:digi]]

(In reply to Christian J. from comment #2)
> I've got the answer from our host:
> 
>   >  our IP address range is 81.134.128.130/28.
> 
> Can you allow for at least 30 connections from any IP in this range? On an
> earlier event we had 42 participants, on the last one we were 12, tonight it
> looks like we might be a tad more, 12-16 or so. It's possible we will slowly
> get higher participation numbers, also this would include some margin for
> visitors at other events of our host using your server at the same time.
> 
> Thanks,
> Christian.

I went ahead and added the exception for you - permitting up to 30 connections from your host's /28.

Comment 4

[Ashish Vijayaram [:ashish]]

Closing this out. We'll keep this exception until you let us know when to remove it.