On 19-Nov-2010, at 06:16, Danilo Godec wrote:
> Suppose a user actually forgot their password and got blocked - then he
> remembers the correct password, but he's allready blocked. So he calls
> me to complain...
>
> What's the best way to temporarily 'undeny' his current IP (without
> adding it to 'allowed-hosts')?
I use the following script which I wrote:
<<<EOF
#!/bin/sh
VERSION='1.1'
# Unlist an IP address from denyhosts
case $1 in
'')
echo "undenyhosts $VERSION"
echo "Usage: undenyhosts <ipaddress>"
;;
*)
# Set to path to startup script
# Commonly /etc/init.d/denyhosts
#RCDENY='/etc/init.d/denyhosts'
RCDENY='/usr/local/etc/rc.d/denyhosts'
# Set to path to data dir
# Commonly /var/lib/denyhosts
#BEDENY='/var/lib/denyhosts'
BEDENY='/usr/local/share/denyhosts/data'
# Set to the full path to the hosts.deny file
# Commonly /etc/hosts.deny
#DENY='/etc/hosts.deny'
DENY='/etc/hosts.deniedssh'
# Is the IP address actually listed in denyhosts?
ISDENY=`grep $1 $DENY`
if [ "$ISDENY" ]; then
# Stop denyhosts, redirect errors and output to /dev/null
$RCDENY stop > /dev/null 2>&1
# Comment out echos for silent output (crontab)
echo "Purging $1 from $BEDENY, leaving .bak file"
sed -i .bak "/$1/d" $BEDENY/*
echo "Purging $1 from $DENY, leaving .bak file"
sed -i .bak "/$1/d" $DENY
# Restart denyhosts. Don't redirect output so that
# any problems restarting it will cause an alert
$RCDENY start
else
# Uncomment if only running from shell
# Comment for silent output from crontab
echo "$1 is not listed in $DENY"
fi
esac
EOF
--
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