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inetbase ddos koruma (Kurulum)

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Old 26.06.07, 02:19
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inetbase ddos koruma (Kurulum)

Yükleme
Code:
wget http://www.inetbase.com/scripts/ddos/install.sh
Code:
sh install.sh
Kaldirma
Code:
wget http://www.inetbase.com/scripts/ddos/uninstall.ddos 
Code:
sh uninstall.ddos 
Ayarlar
Code:
pico /usr/local/ddos/ddos.conf
Quote:
APF_BAN=0 bu özellik 1 ise apf ile banliyo 0 ise iptables ile

NO_OF_CONNECTIONS=150 bir ip den kac baglanti olunca banliyo

BAN_PERIOD=600 bu deger 10 dakika yapiyo yani on dakikada icinde 150 baglanti kurani atiyo

EMAIL_TO=mailadresiniz@falanfilandomain.com buraya mail adresimiz geliyor
ben iptablesten banlatiyorum.

Yalniz scriptin sade hali biraz dandirik yani bazen ip adresinin tamamini banlamiyorsa, cift rakamlarida banliyor gibi sayilarida engelliyor böyle olunca ip adresinde bu rakamlar gecen yinede siteye giremiyor.
bunu engellemek icin
Code:
netstat -tn --inet 2> /dev/null| grep ":80" | awk '/tcp[ ]*[0-9]+[ ]*[0-9]+[ ]+[^ ]+[ ]*[^ ]*/ { print $5; }' | cut -d":" -f1 | sort | uniq -c | sort -n
komutu confige ekleyebilirsiniz.

banli ip adreslerini bosaltmak icin
Code:
iptables -F
yazip calistirin.

Last edited by Onursal; 25.11.07 at 00:37.
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Old 30.06.07, 00:36
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bu script ile botnet engellenirmi ?

evet engellenir eger erken davranirsaniz ssh kitlenmeden root olarak ssh ye baglanirsaniz

pico /usr/local/ddos/ddos.conf

NO_OF_CONNECTIONS=1

BAN_PERIOD=6000

simdi connections degerini 1 yaptik yani tek baglanti yapanlar bile banlanacak yani ziyaretcileriniz bile banlanacak
tabi bununla beraber saldiri yapanlarda banlaniyor botnet ile yapilan saldilarda genelde 1 connection olusur. onun icin degeri 1 yaptik.
ban period 6000 yaptik yani 1 saat 40 dakika boyunca ipler banli kalacak.
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  #3  
Old 07.07.07, 13:03
gmail
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keske ziyaretciler banlamadan sadece syn saldirilarini banlamanin bi imkani olsa
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  #4  
Old 18.07.07, 20:43
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csf kurulu ikende kursak sorun olmaz degil mi ?
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Old 18.07.07, 21:35
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Quote:
Originally Posted by RAMBilisim View Post
csf kurulu ikende kursak sorun olmaz degil mi ?
hayir sorun olmaz.
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Daha cok ögrenmek ve ögretmek dilegiyle..
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Old 19.07.07, 22:06
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kurulumu yaptim bakalim zamanla koruma ne kadar etkili gorucez
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  #7  
Old 20.07.07, 00:02
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csf ile beraber bu script calismaz..

Çunku csf ile gelen lfd ayni isi goruyor ve cakismalara sebep veriyor. İllaki calistirmak istiyorum diyorsaniz, conf dosyasi icindeki apf yolunu csf'e gore degistirin...
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Old 20.07.07, 00:02
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Quote:
Originally Posted by gmail View Post
keske ziyaretciler banlamadan sadece syn saldirilarini banlamanin bi imkani olsa
var ama söylenmez sir
Saglam bir apache konfigürasyonu ile SYN attackler ve botnet'in gücsüzleri bile engellenebiliyor...
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  #9  
Old 09.08.07, 17:13
wrhost
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bir ise yaradigi pek soylenemez bu scriptin csf calismiyor bunu kurarsam ve csf daha iyi
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  #10  
Old 09.08.07, 18:27
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csf kurdunuz zaman bu tarz yazilimlara gerek yok zaten...
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