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ssh连接其他Linux机器过慢怎么办?

更新日期:2015-04-04 07:13      作者:w8系统下载      来源:w8xitong.com

  ssh在连接其他Linux机器的时候,有时会出现这样的问题,虽然能够连接上,但连接速度很慢,非常消耗时间,下面小编就给大家介绍下ssh连接Linux机器过慢的解决方法,感兴趣的朋友可以来了解下。

  在局域网内,能ping通目标机器,并且时延是微秒级。

  用ssh连局域网内其他linux机器,会等待10-30秒才有提示输入密码。严重影响工作效率。

  CentOS修改后效果一样

  =================================

  客户端操作系统版本:

  cat /etc/lsb-release

  DISTRIB_ID=Ubuntu

  DISTRIB_RELEASE=9.10

  DISTRIB_CODENAME=karmic

  DISTRIB_DESCRIPTION=“Ubuntu 9.10”0

  =================================

  调试信息:

  [root@IBM ~]# ssh -v 10.10.10.100

  OpenSSH_3.9p1, OpenSSL 0.9.7a Feb 19 2003

  debug1: Reading configuration data /etc/ssh/ssh_config

  debug1: Applying options for *

  debug1: Connecting to 10.10.10.100 [10.10.10.100] port 22.

  debug1: connect to address 10.10.10.100 port 22: Connection refused

  ssh: connect to host 10.10.10.100 port 22: Connection refused

  ----------------[网络上的调试信息]----------------------

  ssh -v 192.168.12.16

  OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007

  debug1: Reading configuration data /etc/ssh/ssh_config

  debug1: Applying options for *

  debug1: Connecting to 192.168.12.16 [192.168.12.16] port 22.

  debug1: Connection established.

  debug1: identity file /home/zhouhh/.ssh/identity type -1

  debug1: identity file /home/zhouhh/.ssh/id_rsa type -1

  debug1: identity file /home/zhouhh/.ssh/id_dsa type -1

  debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3

  debug1: match: OpenSSH_4.3 pat OpenSSH_4*

  debug1: Enabling compatibility mode for protocol 2.0

  debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-6ubuntu2

  debug1: SSH2_MSG_KEXINIT sent

  debug1: SSH2_MSG_KEXINIT received

  debug1: kex: server-》client aes128-cbc hmac-md5 none

  debug1: kex: client-》server aes128-cbc hmac-md5 none

  debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024《1024《8192) sent

  debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP

  debug1: SSH2_MSG_KEX_DH_GEX_INIT sent

  debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY

  debug1: Host ‘192.168.12.16’ is known and matches the RSA host key.

  debug1: Found key in /home/zhouhh/.ssh/known_hosts:1

  debug1: ssh_rsa_verify: signature correct

  debug1: SSH2_MSG_NEWKEYS sent

  debug1: expecting SSH2_MSG_NEWKEYS

  debug1: SSH2_MSG_NEWKEYS received

  debug1: SSH2_MSG_SERVICE_REQUEST sent

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