Comment 5 for bug 830679

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Mantas Mikulėnas (grawity) wrote : Re: Launchpad Bazaar server -- hangs on SSH ECDSA authentication

As an update (still open three years later?...), it turns out that OpenSSH "certificates" also trigger this bug:

    debug1: Offering RSA-CERT public key: /home/grawity/.ssh/id_global
    debug2: we sent a publickey packet, wait for reply
    [hangs]

Even the IdentitiesOnly option does not work here, as OpenSSH always tries <file>-cert.pub in addition to just <file> (it's documented in ssh_config with no option to disable).

Fortunately I was only testing the feature and can work around by removing ~/.ssh/*-cert.pub, but some other people wouldn't be so lucky.