解決linux ping: unknown host www.baidu.com
阿新 • • 發佈：2018-12-26
# grep GATEWAY /etc/sysconfig/network-scripts/ifcfg*
-------------------------------------------------------------------
/etc/sysconfig/network-scripts/ifcfg-eth0:GATEWAY=192.168.40.1
-------------------------------------------------------------------
如果未設定, 則通過如下方式增加閘道器:
# route add default gw 192.168.40.1
或者手工編寫/etc/sysconfig/network-scripts/ifcfg*檔案後, 重啟network服務:
# service network restart
3) 確保可用dns解析
# grep hosts /etc/nsswitch.conf
-------------------------------------------------------------------
hosts: files dns
-------------------------------------------------------------------
如果以上哪個有問題, 修正後, 再測試, 應該就沒問題了:
#ping -c 3 www.baidu.com
PING www.a.shifen.com (220.181.6.175) 56(84) bytes of data.
64 bytes from 220.181.6.175: icmp_seq=0 ttl=50 time=9.51 ms
64 bytes from 220.181.6.175: icmp_seq=1 ttl=50 time=8.45 ms
64 bytes from 220.181.6.175: icmp_seq=2 ttl=50 time=8.97 ms
--- www.a.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 8.450/8.977/9.511/0.446 ms, pipe 2
轉載網址：http://www.cnblogs.com/happyhotty/articles/2539951.html