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`Run.attach()` (used internally by `dstack apply` and `dstack attach`) now prefers sshproxy over direct backend-specific SSH access if the server reports that sshproxy is enabled via new `JobConnectionInfo.sshproxy_*` fields. In addition, `DSTACK_SERVER_SSHPROXY_ENFORCED` disables direct SSH access to the instance/container by not including user's public key to the instance/container `authorized_keys`. Note, this setting renders dstack server incompatible with older clients. Part-of: #3644
r4victor
approved these changes
Apr 1, 2026
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Run.attach()(used internally bydstack applyanddstack attach) now prefers sshproxy over direct backend-specific SSH access if the server reports that sshproxy is enabled via newJobConnectionInfo.sshproxy_*fields.In addition,
DSTACK_SERVER_SSHPROXY_ENFORCEDdisables direct SSH access to the instance/container by not including user's public key to the instance/containerauthorized_keys. Note, this setting renders dstack server incompatible with older clients.Part-of: #3644