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Although I mention ssh-dss for HostKeyAlgorithms in /etc/ssh/ssh_config. ssh-rsa key pair can be used to login!

     HostKeyAlgorithms ssh-dss
Cyrus
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Vijay S B
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    Stack Overflow is a site for programming and development questions. This question appears to be off-topic because it is not about programming or development. See [What topics can I ask about here](http://stackoverflow.com/help/on-topic) in the Help Center. Perhaps [Super User](http://superuser.com/) or [Unix & Linux Stack Exchange](http://unix.stackexchange.com/) would be a better place to ask. – jww Mar 24 '18 at 07:50
  • [OpenSSH Legacy Options](https://www.openssh.com/legacy.html) and [OpenSSH 7.0 & greater disable ssh-dss by default](https://www.ibm.com/developerworks/community/blogs/cgaix/entry/OpenSSH_7_0_greater_disable_ssh_dss_by_default). – jww Mar 24 '18 at 07:51

1 Answers1

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Some useful info on the above issue

In practice, a RSA key will work everywhere. ECDSA support is newer, so some old client or server may have trouble with ECDSA keys. A DSA key used to work everywhere, as per the SSH standard (RFC 4251 and subsequent), but this changed recently: OpenSSH 7.0 and higher no longer accept DSA keys by default.

Vijay S B
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