I have the following problem:
I have a VM with CentOS installed. From this machine, I can't connect to internet, so I can't upgrade nothing installed on it.
The VM configuration is:
Under Settings -> Network
- Adapter 1
- NAT
- Adapter 2
- Host-only Adapter
- Name: vboxnet0
- Promiscuous Mode: Deny
- Calbe Connected: true
Under File->Preferences->Network, in Host-only Networks, vbonenet0:
- IPv4 Address: 192.168.101.1
- Ipv4 Newroks Mask: 255.255.255.0
- IPv6 Address: fe80:0000:0000:0000:0800:27ff:fe00:0000
- IPv6 Prefix Length: 64
When I'm on the machine:
ifconfig -a
eth0 Link encap:Ethernet HWaddr 08:00:27:55:45:B3
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe55:45b3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1699 (1.6 KiB) TX bytes:1414 (1.3 KiB)
eth1 Link encap:Ethernet HWaddr 08:00:27:D7:3D:E9
inet addr:192.168.101.129 Bcast:192.168.101.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fed7:3de9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:477 errors:0 dropped:0 overruns:0 frame:0
TX packets:452 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:89736 (87.6 KiB) TX bytes:183141 (178.8 KiB)
ping 192.168.101.129
PING 192.168.101.129 (192.168.101.129) 56(84) bytes of data.
64 bytes from 192.168.101.129: icmp_seq=1 ttl=64 time=0.013 ms
64 bytes from 192.168.101.129: icmp_seq=2 ttl=64 time=0.027 ms
64 bytes from 192.168.101.129: icmp_seq=3 ttl=64 time=0.031 ms
64 bytes from 192.168.101.129: icmp_seq=4 ttl=64 time=0.048 ms
64 bytes from 192.168.101.129: icmp_seq=5 ttl=64 time=0.062 ms
ping www.google.com
PING www.google.com (216.58.205.164) 56(84) bytes of data.
From 192.168.101.129 icmp_seq=2 Destination Host Unreachable
From 192.168.101.129 icmp_seq=3 Destination Host Unreachable
From 192.168.101.129 icmp_seq=4 Destination Host Unreachable
Under /etc/sysconfig/network-scripts/, the ifcfg-eh0 file:
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=DHCP
DNS1=8.8.8.8
DNS2=8.8.4.4
the ifcfg-eh1 file:
DEVICE=eth1
ONBOOT=yes
TYPE=Ethernet
BOOTPROTO=static
IPADDR=192.168.101.129
NETMASK=255.255.255.0
NETWORK=192.168.101.0
BROADCAST=192.168.101.255
NM_CONTROLLED=no
DNS1=8.8.8.8
DNS2=8.8.4.4
route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.101.0 * 255.255.255.0 U 0 0 0 eth0
10.0.3.0 * 255.255.255.0 U 0 0 0 eth1
192.168.56.0 * 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 192.168.101.2 0.0.0.0 UG 0 0 0 eth0
Can someone help me? Thanks for the support.
UPDATE
The default gateway is:
ip r | grep default
default via 192.168.101.2 dev eth1
GATEWAY=<IPAddress>value of the ifcfg-eth0 file and then see if that resolves. You can restart network service withsystemctl restart networkafterwards to test.GATEWAY=10.0.2.15and nowping www.google.comsaysping: unknown host www.google.comnmtuiwhen I can for network configuration of CentOS machines so see if available in your case in case you see anything that looks obvious but the missing DG looked obvious to me but I'm not a Linux expert either but it's likely a VM network setting causing this I think at least.routecommand and show that output in your question. I wonder if you even need the adapter 2 setup in VirtualBox for the network settings and just having adapter 1 setup with NAT alone would do it? I'd have to test with VirtualBox but perhaps this is something simple you could test with quickly just in case.