short name a domain name

I have a DDNS service with, but the link I have is so hard to remember.
It’s working, I can resolve it using resolveip link and I get the current IP of the router.
I tried to use /etc/hosts but it didn’t work, it requires that I put an IP.

How can I give a short name to the DDSN link I have.
for example ping name , so the system would resolve name for the DDNS link.

I wonder if NetworkManager or ip addr can help me.

Thanks a lot.

Just store the address in a variable and then you can ping that:

$ ping "$foo"
PING ( 56(84) bytes of data.
64 bytes from ( icmp_seq=1 ttl=58 time=5.12 ms
64 bytes from ( icmp_seq=2 ttl=58 time=10.5 ms
64 bytes from ( icmp_seq=3 ttl=58 time=8.05 ms
--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 5.120/7.901/10.532/2.212 ms

To make it permanent, edit your ~/.profile file (or ~/.bash_profile if that file exists and you are using bash) and add this line (of course, change foo to whatever you want your variable to be called and change the URL to the name of your server):


Now, from the next time you log in, you will be able to run ping "$foo" to ping, or echo "$foo" to print it out etc.

Answered By: terdon
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