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mail-in-a-box / mailinabox

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
https://mailinabox.email/
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"WARNING Determined IP using DNS Lookup" #538

Open Futurama56 opened 9 years ago

Futurama56 commented 9 years ago

fail2ban.filter : WARNING Determined IP using DNS Lookup: [IP address]

Simple solution: update the following line at the top of your /etc/fail2ban/jail.local file, in the [DEFAULT] section

change usedns = warn to usedns = no

usedns: This defines whether reverse DNS is used to help implement bans. Setting this to "no" will ban IPs themselves instead of hostnames. The "warn" setting will attempt to use reverse-DNS to look up the hostname and ban that way, but will log the activity for review.

nomandera commented 9 years ago

Seems sensible but the change should be made in jail.local and not jail.conf

JoshData commented 8 years ago

Should we still do this?

miketwais commented 7 years ago

what can i do to solve thin problem?waitting on line

yodax commented 7 years ago

Are you seeing this error in the log? I don't see it on any of my servers.