[SOLVED] host command hangs on my hostname

hdc · 08-03-2012, 02:15 PM

Hi guys!

First post here!

I've been reading these forums for help for quite some time and this time it was my turn to ask since I couldn't find anything online that could help me

So, I have setup a CentOS 6 VM with Oracle 11g and I was trying to access the Oracle's Database Control through my Windows machine.

It works on my Windows machine only if I type the IP of my VM (NAT network connection):

https://192.168.157.131:1158/em/cons...outApplication

In my VM, it works either way (centosvm01 is my VM machine/host name)

https://centosvm01:1158/em/console/aboutApplication

I cannot make it so the Windows side resolves the host name, and I was looking for some help on that.

Here are some outputs from my VM:

Code:

[root@centosvm01 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

#----
192.168.157.131   centosvm01 centosvm01.localdomain

Code:

[root@centosvm01 ~]# host centosvm01
;; connection timed out; trying next origin

Code:

[root@centosvm01 ~]# ping centosvm01
PING centosvm01 (192.168.157.131) 56(84) bytes of data.
64 bytes from centosvm01 (192.168.157.131): icmp_seq=1 ttl=64 time=0.055 ms
64 bytes from centosvm01 (192.168.157.131): icmp_seq=2 ttl=64 time=0.089 ms
^C
--- centosvm01 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1799ms
rtt min/avg/max/mdev = 0.055/0.072/0.089/0.017 ms

Code:

[root@centosvm01 ~]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=centosvm01.localdomain

Please let me know if you guys need any other prints?

Thank you in advance for the help!

unSpawn · 08-03-2012, 03:05 PM

Quote:

Originally Posted by hdc

I cannot make it so the Windows side resolves the host name

That's not a Linux Networking question IMHO. Simplest way, if the guest connects in bridge mode and gets a static IP from the routers DHCPd, is to add it to your hosts equivalent of /etc/hosts.

hdc · 08-03-2012, 10:29 PM

I know what you mean but the issue is on the Linux VM because I had a CentOS 5 setup (somebody installed for me) and it was working fine before (nothing was changed on the Windows end).

Also, as you can see from my comment, doing a "host centosvm01" command doesn't work which shows the issue is on the VM.

hdc · 08-06-2012, 09:55 AM

Anybody could shed some light please?

Gleylancer · 08-06-2012, 10:28 AM

Quote:

Originally Posted by hdc

Code:

[root@centosvm01 ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

#----
192.168.157.131   centosvm01 centosvm01.localdomain

The order for the /etc/hosts entries should be <IP> <HOSTNAME>.<DOMAIN> <ALIAS>, but it doesn't really matter.

Please try "nslookup centosvm01" on windows/dosbox and "resolveip centosvm01" and post what happens.

Reuti · 08-08-2012, 12:54 PM

host like nslookup need a DNS server providing this information to resolve the hostname. An entry in /etc/hosts won’t help here.

You can add an entry in C:\WINDOWS\system32\drivers\etc\hosts to use the hostname also on the Windows side.

If you want to go with DNS, you will need to setup a DNS server and point your Windows thereto to use it.

hdc · 08-09-2012, 09:58 AM

Yep! That fixed the issue.

Thank you for the help!