I entered acer ( ip and hostname ) in host file of rhel.
As I mentioned, acer maintains list of host name entry in the host file.
acer is a vmware windows host whereas rhel is installed as a vitual machine in vmware
I entered acer ( ip and hostname ) in host file of rhel.
So - why don't you enter ubuntu15 plus IP into the host file?
Quote:
As I mentioned, acer maintains list of host name entry in the host file.
acer is a vmware windows host whereas rhel is installed as a vitual machine in vmware
All of this does NOT mean acer is a name server. Try to find the REAL name server(s), be it in the files on acer, be it on e.g. your router.
Remember that ping often uses gethostbyname system/kernel call where traceroute often uses the actual DNS lookup. You can also easily test whether the entries are indeed in DNS by using nslookup or dig
I have vmware on my windows PC ( hostname : acer ).
vmware has RHEL 7 ( hostname : rhel7 ) installed recently.
RHEL IP configuration
IP : 192.168.5.128
Netmask : 255.255.255.0
ssh to rhel7 works from acer using putty
resolve.conf
host file of acer has the entry
192.168.5.1 acer
ping to acer from rhel 7 does not work.
Hello
I believe that 192.168.5.1 is your Acer windows PC, and there is no DNS server on it, which are you relies to.
You'll need to set some other DNS server for your Linux server in resolf.conf, for example 8.8.8.8 (Google DNS server).
If you need to be able ping your Acer PC by name from Linux server, you can add this line at /etc/hosts:
I think that you might need to improve your knowledge about DNS a little, this article can help a bit.
Last edited by imort; 04-06-2016 at 02:23 PM..
Reason: Forgot to add a link to article about DNS records
Remember that ping often uses gethostbyname system/kernel call where traceroute often uses the actual DNS lookup. You can also easily test whether the entries are indeed in DNS by using nslookup or dig
Yes, ping (and traceroute) use gethostbyname() for resolving hostnames. And gethostbyname() goes to /etc/nsswitch.conf that must have the line
to consider first /etc/hosts then DNS.
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