podman login command gives error:authenticating credentials

[BODALIA]

Looks like a simple question with a simple answer but it is not working for me in my VMware Rhel9 machine that I have set up. I have successfully installed container-tools, but am unable to log in to the container registry. I am using my username and password that I used to register the machine, the same as the one I use to log in to my course RHCSA Rapid Track

Can anyone help me please?

Thanks,

Usha

[Chetan_Tiwary_]

Hi Usha,
Thanks for reaching out ! Which container registry you are trying to log in ?

[BODALIA]

Hi Chetan,
from my vmware virtual terminal, I am running command
podman login registry.access.redhat.com

I read somewhere that authentication is not required for this registry but it still asks me, so I put in username ushakant, and the password that I use to login to my course. The error that I get is as follows:

Error: authenticating creds for "registry.access.redhat.com": pinging container registry registry.access.redhat.com: Get https://registry.access.redhat.com/v2/: dial tcp: lookup registry.access.redhat.com on 192.168.83.2:53: read udp 192.168.83.133:40892->192.168.83.2:53: i/o timeout

Thank you,
Usha


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[Tess]

The error message you're getting is not about the credentials themselves.

It's telling you that your RHEL9 box cannot do a DNS lookup of the host you're telling it to find. So, it's time for basic troubleshooting. 

1. Does your RHEL box have an Internet connection? 
2. The message says that your DNS server is 192.168.83.2. Is that correct? How did you configure your networking?
3. What's the outcome of "nslookup www.google.com"?
4. What's the outcome of "ping www.google.com"?
5. What's the outcome of "ping 8.8.8.8"?

[Chetan_Tiwary_]

What about the DNS and general curl  connectivity to the registry URL ( without podman login ) ?

[kash]

what is the solution for this

[mansin99]

the issue is related to resolving the DNS.

If DNS issues persist, you can specify a custom DNS configuration for Podman by editing /etc/containers/containers.conf or /etc/containers/registries.conf and adding the dns entry under the [containers] section, also remove any other DNS entries.

[containers]
dns = ["8.8.8.8", "1.1.1.1"]

then sudo systemctl restart podman


this should resolve the issue

[mansin99]

the issue is related to resolving the DNS. If DNS issues persist, you can specify a custom DNS configuration for Podman by editing /etc/containers/containers.conf or /etc/containers/registries.conf and adding the dns entry under the [containers] section, also remove any other DNS entries. [containers] dns = ["8.8.8.8", "1.1.1.1"] then sudo systemctl restart podman this should resolve the issue

[BODALIA]

Hi Chetan, from my vmware virtual terminal, I am running command podman login registry.access.redhat.com I read somewhere that authentication is not required for this registry but it still asks me, so I put in username ushakant, and the password that I use to login to my course. The error that I get is as follows: Error: authenticating creds for "registry.access.redhat.com": pinging container registry registry.access.redhat.com: Get https://registry.access.redhat.com/v2/: dial tcp: lookup registry.access.redhat.com on 192.168.83.2:53: read udp 192.168.83.133:40892->192.168.83.2:53: i/o timeout Thank you,

[Tess]

I could have sworn that I posted a response in this thread. Don't know why it's gone

The error message you're getting indicates a network problem, not one of authentication. 

The message says you're trying to DNS lookup against 192.168.83.2. Is that really the DNS server for your Redhat box? Please verify your network configuration, because your Redhat box cannot reach your DNS server.