Home / server / Questions / 349611
Accepted
Valentin Brasso
Asked: 2012-01-14 03:37:00 +0800 CST

CentOS fresh iLO install, no internet connectivity (yum, wget etc. fail)

  • 772

I've installed a fresh copy of the latest CentOS via iLO (HP's integrated lights out 2). The setup type was Web Server. My server doesn't seem to be able to connect to the Internet anymore. I've lost the old settings for DHCP and hostname but I have the old settings for eth0 and DNS server, still there's something else I should be doing to be able to use wget, yum, ping and to have SSH access from other locations, but I can't seem to find what that is.

Any pointers? Thanks.

Edit: route command:

route
Kernel IP routing table
Destination Gateway Genmask       Flags Metric Ref Use Iface
xx.xx.68.0  *       255.255.255.0 U     0      0    0  eth0
link-local  *       255.255.0.0   U     1002   0    0  eth0

Note that the server IP is xx.xx.68.176, should I change the route?

networking centos6.2

3 Answers

  1. I'd say you are missing the default route - sometimes called the gateway.

    • 2
  2. Best Answer

    Do a 

    route add default gw xx.xx.68.1(?) #Gateway's IP

    Or follow what @ewwhite said you should configure your network properly because there are scripts like if-up,if-down that take care of interface mishaps like yours

    EDIT: Even better after @Lucas' comment go to your /etc/network/interface and add

    iface eth0 inet static
address xx.xx.68.176
netmask 255.255.255.0
gateway xx.xx.68.xx

    You can always send a new request to your dhcp server by doing which will get lost after a reboot 

    dhclient eth0

    or by adding to your /etc/network/interface

    iface eth0 inet static
    • 2

  3. Can you run system-config-network, fill in your network configuration information and restart the network services? /sbin/service network restart

    • 1