리눅스 네트워크 잡기
ping www.google.co.kr 을 했더니 , ping: unknown host www.google.co.kr
이 나왓다. 뭔가 네트워크 설정이 제대로 안되어서 이런문제가 생긴듯하다.
1. vi /etc/sysconfig/network-scripts/ifcfg-eth0 파일 열기
(ifcfg-eno1 일 수도 있다.)
DEVICE=eth0
TYPE=Ethernet
UUID=a89ea4c3-ae10-4999-93aa-51b790a0abe3
NM_CONTROLLED=yes
BOOTPROTO=static
ONBOOT=yes
IPADDR= 서버 아이피
GATEWAY= 게이트웨이
NETMASK= 넷마스크
HWADDR=00:1F:29:32:24:BC
3. vi /etc/resolv.conf 파일을 연다.
nameserver 222.1111.3333.444 // 각자의 네임서버 (DNS) 에 맞게 넣어준다.
4. /etc/init.d/network restart // 네트워크 리스타트
다시 ping 을 때려봣다.
해결되었다.
아래 로그중 붉은 글씨를 보고 참고하면 될듯핟다.
======================================================
[root@server105 ~]# ping www.google.co.kr
ping: unknown host www.google.co.kr
[root@server105 ~]# ping www.google.co.kr
ping: unknown host www.google.co.kr
[root@server105 ~]# vi /etc/sysconfig/network-scripts/ifcfg-
ifcfg-eth0 ifcfg-eth1 ifcfg-lo
[root@server105 ~]# vi /etc/sysconfig/network-scripts/ifcfg-
ifcfg-eth0 ifcfg-eth1 ifcfg-lo
[root@server105 ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
UUID=a89ea4c3-ae10-4999-93aa-51b790a0abe3
NM_CONTROLLED=yes
BOOTPROTO=static
ONBOOT=yes
IPADDR= 서버 아이피
GATEWAY= 게이트웨이
NETMASK= 넷마스크
HWADDR=00:1F:29:32:24:BC
"/etc/sysconfig/network-scripts/ifcfg-eth0" 11L, 208C written
[root@server105 ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
------ * 255.255.255.240 U 0 0 0 eth1
192.168.0.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1002 0 0 eth0
link-local * 255.255.0.0 U 1003 0 0 eth1
default ----- 0.0.0.0 UG 0 0 0 eth1
[root@server105 ~]# /etc/init.d/network restart
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Determining if ip address 192.168.0.105 is already in use for device eth0...
[ OK ]
Bringing up interface eth1: Determining if ip address 222.122.192.105 is already in use for device eth1...
[ OK ]
[root@server105 ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.96 * 255.255.255.240 U 0 0 0 eth0
222.122.192.96 * 255.255.255.240 U 0 0 0 eth1
link-local * 255.255.0.0 U 1002 0 0 eth0
link-local * 255.255.0.0 U 1003 0 0 eth1
default ------ 0.0.0.0 UG 0 0 0 eth1
[root@server105 ~]# ping www.google.co.kr
ping: unknown host www.google.co.kr
[root@server105 ~]#
[root@server105 ~]# vi /etc/resolv.conf
nameserver 네임서버 맞게!
~
"/etc/resolv.conf" 1L, 24C written
[root@server105 ~]#
[root@server105 ~]#
[root@server105 ~]# /etc/init.d/network restart
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Determining if ip address 192.168.0.105 is already in use for device eth0...
[ OK ]
Bringing up interface eth1: Determining if ip address 222.122.192.105 is already in use for device eth1...
[ OK ]
[root@server105 ~]# ping www.google.co.kr
PING www.google.co.kr (172.217.25.227) 56(84) bytes of data.
^C
--- www.google.co.kr ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3177ms
[root@server105 ~]#
[root@server105 ~]#
[root@server105 ~]#
[root@server105 ~]#
[root@server105 ~]#