[Dovecot] v1.1 max connections per user

[Bill Cole]

At 8:21 PM -0400 6/30/07, Bill Boebel wrote:
>On Sat, June 30, 2007 7:50 pm, Charles Marcus  said:
>
>>  Timo Sirainen, on 6/30/2007 7:25 PM, said the following:
>>>  On Sat, 2007-06-30 at 19:11 -0400, Charles Marcus wrote:
>>>>  Timo Sirainen, on 6/30/2007 6:43 PM, said the following:
>>>>>  v1.1 has now:
>>>>>
>>>>>  # Maximum number of connections allowed for a user. The limits 
>>>>>are enforced
>>>>>  # separately for IMAP and POP3 connections, so you can move this setting
>>>>>  # inside protocol {} to have separate settings for them. NOTE: 
>>>>>The user names
>>>>>  # are compared case-sensitively, so make sure your userdb 
>>>>>returns usernames
>>>>>  # always using the same casing so users can't bypass this limit!
>>>>>  #mail_max_user_connections = 10
>>>>>
>>>>>  Is 10 a good default?
>>>>  I'm assuming this is per IP?
>>>
>>>  No. I'm not sure if it should. Perhaps. It's mostly intended to prevent
>>>  unintentional abuse by stupid clients, so having 3+ thunderbirds open in
>>>  different locations with each having 5 connections should probably be
>>>  allowed.
>>
>>  Ok - you said 10 was the default - but then said that 15 (3 TBirds x 5)
>>  connections should be allowed, which is more than 10... so... you just
>>  meant that one could accommodate that by upping this limit to 15?
>
>I like 15.  That way it is high and isn't as likely to affect
>existing installations unless they manually set it to something
>lower.  Or if you want to have a separate default for POP vs IMAP,
>I'd use 5 for POP and 15 for IMAP.

Do concurrent sessions for POP3 really ever make sense?

-- 
Bill Cole
bill at scconsult.com