ssh连接其他Linux机器过慢怎么办?

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 。

ssh连接其他Linux机器过慢怎么办?


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
【ssh连接其他Linux机器过慢怎么办?】 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
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: gssapi-with-mic
debug1: An invalid name was supplied
Cannot determine realm for numeric host address
debug1: An invalid name was supplied
Cannot determine realm for numeric host address
debug1: An invalid name was supplied
debug1: Next authentication method: publickey
debug1: Trying private key: /home/zhouhh/.ssh/identity
debug1: Trying private key: /home/zhouhh/.ssh/id_rsa
debug1: Trying private key: /home/zhouhh/.ssh/id_dsa
debug1: Next authentication method: password
password:
debug1: Authentication succeeded (password) 。
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = zh_CN.UTF-8

推荐阅读