由于今天上午试图连接到我的远程当我收到以下错误消息的Ubuntu 14.04 LTS通过机器ssh从MacBook Air的约塞米蒂10.10.1。
ssh_exchange_identification: read: Operation timed out
使用-vvv标志时，会出现以下详细消息
OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: /etc/ssh_config line 102: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to XXX.XXX.XXX.XXX [XXX.XXX.XXX.XXX] port 22.
debug1: Connection established.
debug1: identity file /Users/felix/.ssh/id_rsa type -1
debug1: identity file /Users/felix/.ssh/id_rsa-cert type -1
debug1: identity file /Users/felix/.ssh/id_dsa type -1
debug1: identity file …