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I tried to install telnet using yum with the following command:

yum install telnet

But I get the following error: Error

How can I solve this and add third party repositories?

Jd_mahmud
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  • Welcome to Server Fault! Please use cut-and-paste for posting console output and format it as "`code`" rather than posting screenshots. That improves readability, attracts better answers and allows indexing by search engines, which may help people with similar questions. - But do as suggested and check the contents of the epel yum repo configuration ... – Bob Jan 10 '22 at 15:15

1 Answers1

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Please, register your RHEL version.


# subscription-manager register --username admin-example --password secret --auto-attach

Then validate repos.

To see a list of available repositories:


# subscription-manager repos --list

To enable a specific Red Hat repository:


# subscription-manager repos --enable=rhel-6-server-optional-rpms

Enabling or disabling a repository using Red Hat Subscription Management

As you desire add external repos please use the following command line:


# yum-config-manager --add-repo ***repository_url***

RHEL 7


# subscription-manager repos --enable rhel-*-optional-rpms \
                           --enable rhel-*-extras-rpms \
                           --enable rhel-ha-for-rhel-*-server-rpms

yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
Alejandro F.
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