我正在尝试sftp连接到远程主机，但仍不断收到以下输出：
$ sftp -v X.X.X
OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /home/alexus/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to X.X.X [X.X.X.X] port 22.
debug1: Connection established.
debug1: identity file /home/alexus/.ssh/id_rsa type 1
debug1: identity file /home/alexus/.ssh/id_rsa-cert type -1
debug1: identity file /home/alexus/.ssh/id_dsa type -1
debug1: identity file /home/alexus/.ssh/id_dsa-cert type -1
debug1: identity file /home/alexus/.ssh/id_ecdsa type -1
debug1: identity file /home/alexus/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/alexus/.ssh/id_ed25519 type -1
debug1: identity file /home/alexus/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1
ssh_exchange_identification: read: Connection reset by peer
Couldn't read packet: Connection reset by peer
$
我尝试过Google，但到目前为止我还没有找到解决方案（有什么建议吗？