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etersoft-admin-essentials
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etersoft
etersoft-admin-essentials
Commits
ad0f8f1d
Commit
ad0f8f1d
authored
Aug 11, 2015
by
Vitaly Lipatov
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update ddos script
parent
2f779e48
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2 changed files
with
16 additions
and
28 deletions
+16
-28
load_avg_vz.sh
common/load_avg_vz.sh
+0
-10
check_ddos_ip.sh
ddos/check_ddos_ip.sh
+16
-18
No files found.
common/load_avg_vz.sh
deleted
100755 → 0
View file @
2f779e48
#!/bin/sh
for
id
in
$(
vzlist |
sed
-e
"s| *
\(
[0-9]*
\)
.*|
\1
|g"
)
;
do
CONF
=
/etc/vz/conf/
$id
.conf
test
-r
$CONF
||
continue
eval
`
cat
$CONF
|
grep
^HOSTNAME |
sed
-e
"s|office.etersoft.ru||g"
`
printf
"%4s (%20s):"
$id
$HOSTNAME
vzctl
exec
$id
uptime
done
echo
"---"
uptime
ddos/check_ddos_ip.sh
View file @
ad0f8f1d
#!/bin/bash
cd
/root/bin
IFDEV
=
breth0
# Сколко запоов анализием за аз
# Сколько запросов анализируем за раз
NUMP
=
10000
# Скол
ко поенов може занима один аде
# Скол
ько процентов может занимать один адрес
MAXPERC
=
15
#
акимм в
емени на tcpdmp
#
Максимум вр
емени на tcpdmp
TIMEP
=
15
get_already_dropped
()
{
/sbin/iptables
-L
-n
|
grep
DROP |
awk
'{print $4;}'
>
ipt.dropped.list
/sbin/iptables
-L
-n
|
grep
DROP |
awk
'{print $4;}'
>
ipt.dropped.list
}
do_drop
()
{
grep
-q
"
$1
"
ipt.dropped.list white.list
&&
return
1
echo
"
$1
#
$2
percent,
$(
date
)
"
>>
dropped.list
/sbin/iptables
-A
INPUT
-s
$1
-j
DROP
grep
-q
"
$1
"
ipt.dropped.list white.list
&&
return
1
echo
"
$1
#
$2
percent,
$(
date
)
"
>>
dropped.list
/sbin/iptables
-A
INPUT
-s
$1
-j
DROP
}
get_already_dropped
SECST
=
$(
date
"+%s"
)
timeout
-s
SIGQUIT
$TIMEP
/usr/sbin/tcpdump
-n
-c
$NUMP
-f
-i
$IFDEV
dst 212.176.192.225 or dst 212.176.200.17 |
\
awk
'{print $3;}'
|
\
sed
's/\([[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*\)\..*/\1/g'
>
full.list
timeout
-s
SIGQUIT
$TIMEP
/usr/sbin/tcpdump
-n
-c
$NUMP
-f
-i
inet
dst 212.176.192.225 or dst 212.176.200.17 |
\
awk
'{print $3;}'
|
\
sed
's/\([[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*\.[[:digit:]]*\)\..*/\1/g'
>
full.list
SECST
=
$(($(
date
"+%s"
)
-
$SECST
))
NUMP
=
$(
cat
full.list |
wc
-l
)
...
...
@@ -36,12 +34,12 @@ cat full.list | sort | uniq -c | sort -r -n > attack.list
TOTALATTACKED
=
0
while
read
c ip
;
do
#echo $c = $ip
perc
=
$((
100
*
$c
/
$NUMP
))
if
[
$perc
-gt
$MAXPERC
]
;
then
do_drop
$ip
$perc
&&
echo
"Drop IP
$ip
with
$perc
percent traffic"
||
echo
"IP
$ip
already dropped"
TOTALATTACKED
=
$((
$TOTALATTACKED
+
$perc
))
fi
#echo $c = $ip
perc
=
$((
100
*
$c
/
$NUMP
))
if
[
$perc
-gt
$MAXPERC
]
;
then
do_drop
$ip
$perc
&&
echo
"Drop IP
$ip
with
$perc
percent traffic"
||
echo
"IP
$ip
already dropped"
TOTALATTACKED
=
$((
$TOTALATTACKED
+
$perc
))
fi
done
< attack.list
echo
"Checked packages:
$NUMP
(
$SECST
secs). Traffic:
$((
$NUMP
/
$SECST
))
rps. Atacker percent:
$TOTALATTACKED
"
|
tee
result.out
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