Am 03.07.2013 20:53, schrieb Reindl Harald:
Am 03.07.2013 20:41, schrieb John Fawcett:
On 03/07/13 18:40, Benny Pedersen wrote:
John Fawcett skrev den 2013-07-03 03:21:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
hmm are pop3/imap clients
Am 03.07.2013 04:11, schrieb Stan Hoeppner:
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to
On 03/07/13 05:24, Professa Dementia wrote:
On 7/2/2013 7:11 PM, Stan Hoeppner wrote:
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites
Am 03.07.2013 05:24, schrieb Professa Dementia:
On 7/2/2013 7:11 PM, Stan Hoeppner wrote:
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf.
On 03/07/13 09:26, Robert Schetterer wrote:
Am 03.07.2013 04:11, schrieb Stan Hoeppner:
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf.
On 03/07/13 03:27, Timo Sirainen wrote:
On 3.7.2013, at 4.21, John Fawcett john...@erba.tv wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to introduce such a feature in dovecot,
On Wed, 03 Jul 2013 09:37:14 +0200
Robert Schetterer r...@sys4.de wrote:
Am 03.07.2013 05:24, schrieb Professa Dementia:
On 7/2/2013 7:11 PM, Stan Hoeppner wrote:
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to
On 7/3/2013 12:35 AM, John Fawcett wrote:
The point is to stop spambot connections to pop and
imap (which are usually done to try and steal
credentials).
This is not the usual way spambots work. Generally, spambots scrape
addresses from various sources in order to get lists of emails to send
John Fawcett skrev den 2013-07-03 03:21:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
hmm are pop3/imap clients not authed users ?
well done
--
senders that put my email into body content will deliver it to my own
trashcan, so if you like to
Timo Sirainen skrev den 2013-07-03 03:27:
You're talking about IMAP/POP3 connections?
Possible, yeah .. possibly even without code changes by using
tcpwrappers.
why is it needed ?
setup fail2ban to manange xtables-addons geoip csv files from abusers,
then use this csv file as A0 list in
John Fawcett skrev den 2013-07-03 09:40:
Possible, yeah .. possibly even without code changes by using
tcpwrappers.
TImo, thanks for the reply. I will look into that suggestion.
John
if its implemented in dovecot possible use postfix memcached ?, so thay
share cache data
--
senders that
On 03/07/13 18:44, Benny Pedersen wrote:
Timo Sirainen skrev den 2013-07-03 03:27:
You're talking about IMAP/POP3 connections?
Possible, yeah .. possibly even without code changes by using
tcpwrappers.
why is it needed ?
setup fail2ban to manange xtables-addons geoip csv files from
On 03/07/13 18:40, Benny Pedersen wrote:
John Fawcett skrev den 2013-07-03 03:21:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
hmm are pop3/imap clients not authed users ?
well done
in this case no, I am talking about connections from zombies.
John Fawcett skrev den 2013-07-03 20:41:
in this case no, I am talking about connections from zombies.
block client ip of the zombies, this is what iptables is for, or change
rules to only have ports open for clients location, well dovecot
supports ipblocking, but imho its not the right
Am 03.07.2013 20:41, schrieb John Fawcett:
On 03/07/13 18:40, Benny Pedersen wrote:
John Fawcett skrev den 2013-07-03 03:21:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
hmm are pop3/imap clients not authed users ?
well done
in this case
On 03/07/13 12:47, Professa Dementia wrote:
On 7/3/2013 12:35 AM, John Fawcett wrote:
The point is to stop spambot connections to pop and
imap (which are usually done to try and steal
credentials).
This is not the usual way spambots work. Generally, spambots scrape
addresses from various
Professa Dementia writes:
2) Fail2Ban with rules that seem like they are pretty weak, but trust
me, they work fine and you limit complaints from users.
a) If you get 3 invalid login attempts within a minute from more than
1 IP address, block that login for 10 minutes. If you have blocked a
On 7/3/2013 2:30 PM, Joseph Tam wrote:
Brute force attempts are more intense, so I think these rules can be
set harder to not risk plunking your users into blacklist hell. Also,
some common role account (that don't exist on my system e.g. admin)
will trigger an immediate blacklist here -- an
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to introduce such a feature in dovecot, so that
connections can be denied
based on a dnsbl lookup (where the precise dnsbls used are
On 3.7.2013, at 4.21, John Fawcett john...@erba.tv wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to introduce such a feature in dovecot, so that
connections can be denied
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to introduce such a feature in dovecot, so that
connections can be denied
based on a dnsbl
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to introduce such a feature in dovecot, so that
On 7/2/2013 7:11 PM, Stan Hoeppner wrote:
On 7/2/2013 8:32 PM, Professa Dementia wrote:
On 7/2/2013 6:21 PM, John Fawcett wrote:
dnsbl's are a popular method to prevent listed ips from making
connections to mta software.
cf. postscreen_dnsbl_sites in postfix
Would it be possible to
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