block yandex bot ip ranges

yandex botu geliyor siteyi indexlemek icin 1 geliyo 10000 tane baglanti aciyor
luzumsuz sunucu ustunde yuk
bende blokladim yandex blok larini
gelemiyor artik

# Generated by iptables-save v1.4.7 on Sat May  2 05:05:07 2015
*filter
:INPUT ACCEPT [122:8629]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [110:82633]
-A INPUT -s 178.154.160.0/22 -j DROP 
-A INPUT -s 178.154.164.0/23 -j DROP 
-A INPUT -s 178.154.128.0/17 -j DROP 
-A INPUT -s 5.255.253.0/24 -j DROP 
-A INPUT -s 37.140.141.0/24 -j DROP 
-A INPUT -s 5.45.254.0/24 -j DROP 
COMMIT
# Completed on Sat May  2 05:05:07 2015
/etc/sysconfig/iptables (END) 

1- /sbin/iptables -A INPUT -s 5.45.254.0/24 -j DROP
2- /sbin/service iptables save
3- less /etc/sysconfig/iptables

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ek
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Yandex Bot IP Addresses

37.9.115.0/24, 37.140.165.0/24, 77.88.22.0/25, 77.88.29.0/24, 77.88.31.0/24, 77.88.59.0/24, 84.201.146.0/24, 84.201.148.0/24, 84.201.149.0/24, 87.250.243.0/24, 87.250.253.0/24, 93.158.147.0/24, 93.158.148.0/24, 93.158.151.0/24, 93.158.153.0/32, 95.108.128.0/24, 95.108.138.0/24, 95.108.150.0/23, 95.108.158.0/24, 95.108.156.0/24, 95.108.188.128/25, 95.108.234.0/24, 95.108.248.0/24, 100.43.80.0/24, 130.193.62.0/24, 141.8.153.0/24, 178.154.165.0/24, 178.154.166.128/25, 178.154.173.29, 178.154.200.158, 178.154.202.0/24, 178.154.205.0/24, 178.154.239.0/24, 178.154.243.0/24, 37.9.84.253, 199.21.99.99, 178.154.162.29, 178.154.203.251, 178.154.211.250, 95.108.246.252, 5.45.254.0/24, 5.255.253.0/24, 37.140.141.0/24, 37.140.188.0/24, 100.43.81.0/24, 100.43.85.0/24, 100.43.91.0/24, 199.21.99.0/24

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ek2\
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http://bgp.he.net/AS13238#_prefixes

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UPDATE
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