SSH ochrana před roboty: Porovnání verzí
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Bez shrnutí editace |
Bez shrnutí editace |
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| Řádek 5: | Řádek 5: | ||
EMAIL="muj@mail.cz" | EMAIL="muj@mail.cz" | ||
POKUS=10 | POKUS=10 | ||
# uklid na zacatek | # uklid na zacatek | ||
rm -f /$DIR/auth/$FILE | rm -f /$DIR/auth/$FILE | ||
touch /$DIR/auth/tmp | touch /$DIR/auth/tmp | ||
# zaloha auth.log | # zaloha auth.log | ||
cat /$DIR/auth.log >> /$DIR/auth/$FILE | cat /$DIR/auth.log >> /$DIR/auth/$FILE | ||
rm -f /$DIR/auth.log | |||
touch /$DIR/auth.log | |||
# unikatni IP ze souboru + pridani do block_ip | # unikatni IP ze souboru + pridani do block_ip | ||
grep "Invalid user" /$DIR/auth/$FILE |awk '{print $10}' |uniq > /$DIR/auth/tmp; | grep "Invalid user" /$DIR/auth/$FILE |awk '{print $10}' |uniq > /$DIR/auth/tmp; | ||
cat /$DIR/auth/tmp >> /$DIR/auth/block_ip | cat /$DIR/auth/tmp >> /$DIR/auth/block_ip | ||
# blokovani nalezenych IP | # blokovani nalezenych IP | ||
SIZE=`wc -l /$DIR/auth/tmp |awk '{print $1}'`; | SIZE=`wc -l /$DIR/auth/tmp |awk '{print $1}'`; | ||
Verze z 10. 5. 2008, 19:32
#!/bin/bash
DIR="var/log"
DAY=`date |awk '{print $1}'`
FILE="auth_$DAY.log"
EMAIL="muj@mail.cz"
POKUS=10
# uklid na zacatek rm -f /$DIR/auth/$FILE touch /$DIR/auth/tmp
# zaloha auth.log cat /$DIR/auth.log >> /$DIR/auth/$FILE rm -f /$DIR/auth.log touch /$DIR/auth.log
# unikatni IP ze souboru + pridani do block_ip
grep "Invalid user" /$DIR/auth/$FILE |awk '{print $10}' |uniq > /$DIR/auth/tmp;
cat /$DIR/auth/tmp >> /$DIR/auth/block_ip
# blokovani nalezenych IP
SIZE=`wc -l /$DIR/auth/tmp |awk '{print $1}'`;
SIZE=`expr $SIZE + 1`;
I=1
while test $I -lt $SIZE
do
IP=`sed -n "$I"p /$DIR/auth/tmp`;
I=`expr $I + 1`;
POCET=`cat /$DIR/auth/$FILE |grep $IP |wc -l |awk '{print $1}'`;
if [ $POCET -gt $POKUS ] ; then
iptables -A INPUT -s $IP -j DROP
ATTACK=1
fi
done
#mail
if [ $ATTACK -eq 1 ] ; then
cat /$DIR/auth/tmp |mail -s "Blokovane IP" $EMAIL
fi
