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Some Linux hosts (such as Valery's Linux) can't be added to IDE. It reports "Auth failure". I believe the situation is similar to the one described here http://sourceforge.net/mailarchive/forum.php?thread_name=224776.37332.qm%40web53607.mail.re2.yahoo.com&forum_name=jsch-users The comment of JSch guy is I guess that linux server has disabled 'passwod' authentication method, but enabled 'keyboard-interacive' authentication method for password authentication. It is possible to connect to such host via JSch if we don't pass password, so it asks for it ineractively. But this can't be done via IDE.
Integrated into 'main-golden', will be available in build *200904140201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-golden/rev/e2c594d9afa3 User: Vladimir Kvashin <vkvashin@netbeans.org> Log: workaround for #162514 Can't add a remote host that has disabled 'passwod' authentication method
Fixed with http://hg.netbeans.org/cnd-main/rev/055d7302fd22
resolved in 6.7