Hello everyone.
Recently i have installed centos 6 and created two configs for my two eth interfaces in sysconfig directory so when i reboot the system my eth0 and eth1 will have ip addresses.However when i rebooted the system, config for eth1 also went to eth0. I think it may be network manager which did it because when i turn it off everything is ok. How can i configure it to defeat this problem or is it better to shut it down?

That's really not much to go on.

Could you provide more detail about what exactly you put in your configuration files and what your actual working ifconfig output is?

I have two files:
/etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
HWADDR=00:03:47:72:15:8C
TYPE=Ethernet
#DNS=10.36.1.101
#PEERDNS=yes
BOOTPROTO=static
IPADDR=10.36.197.50
NETMASK=255.255.255.0
#NETWORK=10.36.197.0
#BROADCAST=10.36.197.255
#ONBOOT=yes
NAME=eth1

and /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
HWADDR=00:30:05:3F:AD:CB
TYPE=Ethernet
#DNS=8.8.8.8
#PEERDNS=yes
BOOTPROTO=static
IPADDR=82.207.79.87
NETMASK=255.255.255.192
NETWORK=82.207.79.64
BROADCAST=82.207.79.127
ONBOOT=yes
NAME=eth0

The otput of ifconfig is:
eth0 Link encap:Ethernet HWaddr 00:30:05:3F:AD:CB
inet addr:10.36.197.50 Bcast:10.36.197.255 Mask:255.255.255.0
inet6 addr: fe80::230:5ff:fe3f:adcb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1831 errors:0 dropped:0 overruns:0 frame:0
TX packets:1010 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:170367 (166.3 KiB) TX bytes:333952 (326.1 KiB)
Interrupt:18
eth1 Link encap:Ethernet HWaddr 00:03:47:72:15:8C
inet addr:10.36.197.50 Bcast:10.36.197.255 Mask:255.255.255.0
inet6 addr: fe80::203:47ff:fe72:158c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17680 errors:0 dropped:0 overruns:0 frame:0
TX packets:9804 errors:0 dropped:0 overruns:0 carrier:0
collisions:1 txqueuelen:1000
RX bytes:1592239 (1.5 MiB) TX bytes:1711797 (1.6 MiB)

As you can see two interfaces have the same addresses.