Hi,My name's Ilan and I'm a new user.I installed CentOS 7 64 bit with VMware Player as guest and try 'yum update' to get newest application and get error as mentioned below. It seem me the installation determines the IP address as loopback and I don't know how enable it as real/virtual.I copy & paste the findings from Linux and Windows.Any help will be blessed.Regards,Ilan.[root@localhost Desktop]# yum update
Loaded plugins: fastestmirror, langpacks
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
One of the configured repositories failed (Unknown),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:
1. Contact the upstream for the repository and get them to fix the problem.
2. Reconfigure the baseurl/etc. for the repository, to point to a working
upstream. This is most often useful if you are using a newer
distribution release than is supported by the repository (and the
packages for the previous distribution release still work).3. Disable the repository, so yum won't use it by default. Yum will then
just ignore the repository until you permanently enable it again or use
--enablerepo for temporary usage:yum-config-manager --disable <repoid>
4. Configure the failing repository to be skipped, if it is unavailable.
Note that yum will try to contact the repo. when it runs most commands,
so will have to try and fail each time (and thus. yum will be be much
slower). If it is a very temporary problem though, this is often a nice
compromise:yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
Cannot find a valid baseurl for repo: base/7/x86_64[root@localhost Desktop]# exit
exit[bih016@localhost Desktop]$ ifconfig -a
eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 00:0c:29:d9:2b:57 txqueuelen 1000 (Ethernet)
RX packets 18 bytes 1080 (1.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 386 bytes 33548 (32.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 386 bytes 33548 (32.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0[bih016@localhost Desktop]$ netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Ifacecat /etc/sysconfig/network-scripts/ifcfg-lo
DEVICE=lo
IPADDR=127.0.0.1
NETMASK=255.0.0.0
NETWORK=127.0.0.0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
BROADCAST=127.255.255.255
ONBOOT=yes
NAME=loopbackroute -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Ifacecat /etc/*-release
CentOS Linux release 7.0.1406 (Core)
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"CentOS Linux release 7.0.1406 (Core)
CentOS Linux release 7.0.1406 (Core)uname -a
Linux localhost.localdomain 3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linuxcat /proc/version
Linux version 3.10.0-123.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.2 20140120 (Red Hat 4.8.2-16) (GCC) ) #1 SMP Mon Jun 30 12:09:22 UTC 2014C:\Users\PC User>ipconfig /allWindows IP ConfigurationHost Name . . . . . . . . . . . . : PCUser-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : localdomainEthernet adapter Local Area Connection:Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : EC-A8-6B-FA-3D-15
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::91aa:14b3:7d79:9b8b%11(Preferred)
IPv4 Address. . . . . . . . . . . : 10.0.0.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : יום שלישי 09 דצמבר 2014 14:15:01
Lease Expires . . . . . . . . . . : יום שלישי 09 דצמבר 2014 15:15:01
Default Gateway . . . . . . . . . : 10.0.0.138
DHCP Server . . . . . . . . . . . : 10.0.0.138
DHCPv6 IAID . . . . . . . . . . . : 250390635
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-09-29-61-EC-A8-6B-FA-3D-15DNS Servers . . . . . . . . . . . : 10.0.0.138
NetBIOS over Tcpip. . . . . . . . : EnabledEthernet adapter VMware Network Adapter VMnet1:Connection-specific DNS Suffix . : localdomain
Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet1
Physical Address. . . . . . . . . : 00-50-56-C0-00-01
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::148:a743:e971:82b8%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.254.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : יום שלישי 09 דצמבר 2014 14:15:05
Lease Expires . . . . . . . . . . : יום שלישי 09 דצמבר 2014 14:45:05
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.254.254
DHCPv6 IAID . . . . . . . . . . . : 335564886
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-09-29-61-EC-A8-6B-FA-3D-15DNS Servers . . . . . . . . . . . : 192.168.254.1
NetBIOS over Tcpip. . . . . . . . : EnabledEthernet adapter VMware Network Adapter VMnet8:Connection-specific DNS Suffix . : localdomain
Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8
Physical Address. . . . . . . . . : 00-50-56-C0-00-08
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::f1ec:6b17:d46d:d130%16(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.142.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : יום שלישי 09 דצמבר 2014 14:15:05
Lease Expires . . . . . . . . . . : יום שלישי 09 דצמבר 2014 14:45:05
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.142.254
DHCPv6 IAID . . . . . . . . . . . : 352342102
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-09-29-61-EC-A8-6B-FA-3D-15DNS Servers . . . . . . . . . . . : 192.168.142.2
Primary WINS Server . . . . . . . : 192.168.142.2
NetBIOS over Tcpip. . . . . . . . : EnabledTunnel adapter isatap.{DD439A41-571B-47F9-8B4A-374946CF59CA}:Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : YesTunnel adapter isatap.localdomain:Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : localdomain
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : YesTunnel adapter Teredo Tunneling Pseudo-Interface:Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:109a:1457:f5ff:fffc(Preferred)
Link-local IPv6 Address . . . . . : fe80::109a:1457:f5ff:fffc%14(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled