Ubuntu

ssh: Could not resolve hostname: Name or service not known

Asked by kiri caleb

~$ ssh acegid_server@acegid-01
ssh: Could not resolve hostname : Name or service not known

since a colleague of mine restarted the server it been giving us different responses , the latest is these "Name or service not known"
and am just starting Linux find my way around it and i need assistance on how to connect the the server..

have also tried pinging the hostname , gave me this response " icmp_seq=3 Destination Host Unreachable"

and the first time we tried connecting to server after restarting it , it showed 'ssh: connect to host acegid-01 port 22: No route to host '
so these all have been the various issues we been facing...

would appreciate your speedy response

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actionparsnip (andrew-woodhead666) said : 		#1

If you run:

host acegid-01

What is the output?

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kiri caleb (tamfoire) said : 		#2
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actionparsnip (andrew-woodhead666) said : 		#3

Do you have an entry for the server in /etc/resolv.conf
?

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kiri caleb (tamfoire) said : 		#4
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kiri caleb (tamfoire) said : 		#5

is there any way i can set up a zoom meeting , whereby you can assist us faster to avoid the back and forth texting and replying

cause it a matter of urgency for us over here ?

what do u think ?

would appreciate your speedy response

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actionparsnip (andrew-woodhead666) said : 		#6

OK, if you connect via IP address, does it work OK?

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kiri caleb (tamfoire) said : 		#7

zoom meeting link : https://us04web.zoom.us/j/73105722729?pwd=fJs5OoI1wP0wVzQHUTx0J1sL6Z3aUj.1

if you dont mind so u could walk me through faster

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actionparsnip (andrew-woodhead666) said : 		#8

It's late here and I have work tomorrow. Sorry

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kiri caleb (tamfoire) said : 		#9
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actionparsnip (andrew-woodhead666) said : 		#10

Then check the routing table on the system. If there is a route to the IP then follow that through the network. If not then the default gateway will be used.

Is this in a home setup or is this a business network?

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kiri caleb (tamfoire) said : 		#11
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actionparsnip (andrew-woodhead666) said : 		#12

I'm at work now. Do you have a DNS server on the network?

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kiri caleb (tamfoire) said : 		#13

how do i check if have an an dns server on the network

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kiri caleb (tamfoire) said : 		#14
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kiri caleb (tamfoire) said : 		#15
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actionparsnip (andrew-woodhead666) said : 		#16

Ubuntu uses a local DNS server to cache DNS resolutions but will call out to the DNS server on the network for resolution if the record is uncached.
Is this a home setup or corporate?

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kiri caleb (tamfoire) said : 		#17

corporate

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kiri caleb (tamfoire) said : 		#18

that why i suggested a zoom video conferencing so it way easier to work me through this issues

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actionparsnip (andrew-woodhead666) said : 		#19

OK, on your own PC (I assume Windows) run:

ipconfig /all

You'll see some lines specifying your DNS servers. Can you ping those from the Linux system? If you can then update the nameserver line in /etc/resolv.conf to one of those lines then retry connecting to things

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kiri caleb (tamfoire) said : 		#20

did an ipconfig on command prompt before
will do again now

so wanna ask, would it be possible to get a bit of your free time today , on a zoom call at your preferred time
so we could trash this problem once and for all

what do u think ?

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actionparsnip (andrew-woodhead666) said : 		#21

I have time tomorrow at about 7pm GMT. I don't think it's wise to invite strangers to your network though.

You set DNS in that file. Verify you can ping the server first then set DNS. If it works then you can set the network configuration more permanently. It's all. I'm going to do. A ping and a file update

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kiri caleb (tamfoire) said : 		#22

okay

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actionparsnip (andrew-woodhead666) said : 		#23

Did you get DNS sorted?
Can you ping your system's default gateway IP too?

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kiri caleb (tamfoire) said : 		#24

yes i can ping my default gateway

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kiri caleb (tamfoire) said : 		#25

but couldnt get the dns sorted

so am guesssing the issue lies in my dns ?

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actionparsnip (andrew-woodhead666) said : 		#26

Can you ping the DNS server IPs on your client system from the Linux server?

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sanaa (mairab) said : 		#27

https://bichonfriselife.com/do-bichon-frise-like-to-cuddle/

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