Why my cvs checkout denied?

sebul <[email protected]>
Newsgroups gmane.linux.debian.devel.www
Message-ID <CANy4eeX3XoQxRbCu24Vz4=BHHuFE+0O7ChBSmUWcO0s_5Q6=7Q@mail.gmail.com>
Hello. I have a question.

https://alioth.debian.org/users/sebul-guest/ says
Debian website content (Junior Developer)

When I try cvs checkout I get message Permission denied as follows.

sebul@sebulnet:~$ export CVS_RSH=ssh
sebul@sebulnet:~$ cvs -d :ext:[email protected]:/cvs/webwml
checkout webwml
Permission denied (publickey).
cvs [checkout aborted]: end of file from server (consult above messages if
any)
sebul@sebulnet:~$

Why? How can I solve it ? Help me, please.

-- 
세벌식 http://sebul.sarang.net <http://sebul.sarang.net>
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