突然间我无法从 Mac 终端登录我的服务器。在我的 Linux 机器上，正常的 ssh 登录仍然有效，但 ssh 上的 rsync 也会卡住。
当我尝试从 Mac 连接时发生的情况如下：
ssh -v [email protected]
OpenSSH_7.8p1, LibreSSL 2.6.2
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 48: Applying options for *
debug1: Connecting to xx.xx.xx.xx [xx.xx.xx.xx] port 22.
debug1: Connection established.
debug1: identity file /Users/xx/.ssh/id_rsa type -1
debug1: identity file /Users/xx/.ssh/id_rsa-cert type -1
debug1: identity file /Users/xx/.ssh/id_dsa type -1
debug1: identity file /Users/xx/.ssh/id_dsa-cert type -1
debug1: identity file /Users/xx/.ssh/id_ecdsa type -1
debug1: identity file /Users/xx/.ssh/id_ecdsa-cert type -1
debug1: identity file /Users/xx/.ssh/id_ed25519 type -1
debug1: identity file /Users/xx/.ssh/id_ed25519-cert type -1
debug1: identity file /Users/xx/.ssh/id_xmss type -1
debug1: identity file /Users/xx/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.8
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.7p1 Debian-5+deb8u8
debug1: match: OpenSSH_6.7p1 Debian-5+deb8u8 pat OpenSSH* compat 0x04000000
debug1: Authenticating to xx.xx.xx.xx:22 as 'user'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key:
debug1: Host 'xx.xx.xx.xx' is known and matches the ECDSA host key.
debug1: Found key in /Users/xx/.ssh/known_hosts:28
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/xx/.ssh/id_rsa
debug1: Trying private key: /Users/xx/.ssh/id_dsa
debug1: Trying private key: /Users/xx/.ssh/id_ecdsa
debug1: Trying private key: /Users/xx/.ssh/id_ed25519
debug1: Trying private key: /Users/xx/.ssh/id_xmss
debug1: Next authentication method: password
[email protected]'s password:
debug1: Authentication succeeded (password).
Authenticated to xx.xx.xx.xx ([xx.xx.xx.xx]:22).
debug1: channel 0: new [client-session]
debug1: Requesting [email protected]
debug1: Entering interactive session.
debug1: pledge: network
debug1: Sending environment.
debug1: Sending env LC_CTYPE = UTF-8
packet_write_wait: Connection to xx.xx.xx.xx port 22: Broken pipe
一切运行正常，然后突然停止工作。我没有更改服务器配置的任何内容。只是通过 rsync 进行了一些备份，然后在其中间 rsync 停止工作。它似乎挂在同一个地方：
Authenticated to xx.xx.xx.xx ([xx.xx.xx.xx]:22).
debug1: channel 0: new [client-session]
debug1: Requesting [email protected]
debug1: Entering interactive session.
debug1: pledge: network
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending env LC_ALL = en_US.UTF-8
debug1: Sending command: rsync --server --sender -vltpre.iLsfxC . folder
有什么建议可以解决这个问题吗？
多谢！