New Look. New CentOS!
Yes, that’s what CentOS 7 says.
Anyway, lately, I installed CentOS 7 over VMware and installation were quite smooth. Immediate after installation, I tried to browse some web, and it was failing.
While doing basic troubleshooting, I noticed there were no IP when I did ifconfig
[[email protected] ~]$ ifconfig ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:68:22:e2 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) 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 0 lo: 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 642 bytes 55820 (54.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 642 bytes 55820 (54.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [[email protected] ~]$
Are you in the same situation like I was?
In this article, I will talk about how to fix if you don’t get the Internet on VMware with CentOS 7.
That leads me to think either network adaptor is not enabled or failed to obtain DHCP IP address.
Quick Solution
- Access terminal/console
- Become a root if you are not already
- Execute “dhclient –v” command
- You will notice it will bound IP address as shown below
[[email protected] network-scripts]# dhclient -v Internet Systems Consortium DHCP Client 4.2.5 Copyright 2004-2013 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/ens32/00:0c:29:68:22:e2 Sending on LPF/ens32/00:0c:29:68:22:e2 Sending on Socket/fallback DHCPDISCOVER on ens32 to 255.255.255.255 port 67 interval 4 (xid=0x433a9e33) DHCPREQUEST on ens32 to 255.255.255.255 port 67 (xid=0x433a9e33) DHCPOFFER from 172.16.179.254 DHCPACK from 172.16.179.254 (xid=0x433a9e33) bound to 172.16.179.136 -- renewal in 822 seconds. [[email protected] network-scripts]#
5. Boom, that’s all, you should have the Internet now. You will also notice IP when you do ifconfig
[[email protected] network-scripts]# ifconfig ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.16.179.136 netmask 255.255.255.0 broadcast 172.16.179.255 ether 00:0c:29:68:22:e2 txqueuelen 1000 (Ethernet) RX packets 11 bytes 1255 (1.2 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 23 bytes 3536 (3.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: 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 770 bytes 66956 (65.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 770 bytes 66956 (65.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Add this in auto-startup
You might be interested in putting this in auto-startup, so you don’t have to do this every time you start the CentOS VM.
This is how you can put the script in auto-startup, so it starts automatically after VM is rebooted.
- Go to /etc/init.d
- Create a file with following, I have kept the name as “net-autostart“
#!/bin/bash # Solution for "No Internet Connection from VMware" # ### BEGIN INIT INFO # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 ### END INIT INFO dhclient -v
- Save the file
- Change the file permission as executable
chmod 755 net-autostart
- Add this script for auto-start using chkconfig command
chkconfig --add net-autostart
- Restart VM to test
I hope this helps. Let me know how it goes with you.
If you want to enhance CentOS 7 administration skills, then you may take this course by Cody Ray Miller.
