016 查看SSH会话的统计信息

要想获得一些有用的有关当前会话的统计信息可以使用下面的命令，注意这个命令只在SSH2中支持：
1.登录到远程主机

localhost ssh -l jsmith remotehost

2.在远程主机输入ssh转义字符~加上s参数可以查看当前会话的统计信息

remotehost  [注意: ~s 是不会再你的命令行上显示的] 

       remote host: remotehost
       local host: localhost
       remote version: SSH-1.99-OpenSSH_3.9p1
       local version:  SSH-2.0-3.2.9.1 SSH Secure
Shell (non-commercial)
       compressed bytes in: 1506
       uncompressed bytes in: 1622
       compressed bytes out: 4997
       uncompressed bytes out: 5118
       packets in: 15
       packets out: 24
       rekeys: 0
       Algorithms:
       Chosen key exchange algorithm: diffie-hellman-
group1-sha1
       Chosen host key algorithm: ssh-dss
       Common host key algorithms: ssh-dss,ssh-rsa
       Algorithms client to server:
       Cipher: aes128-cbc
       MAC: hmac-sha1
       Compression: zlib
Algorithms server to client:
       Cipher: aes128-cbc
       MAC: hmac-sha1
       Compression: zlib

localhost$