求助：ssh连接很慢

Question

内网连接 ssh 10.1.3.103
提示：/etc/ssh/ssh_config line 44: Unsupported option "GSSAPIAuthentication"
我把ssh_config和sshd_config的GSSAPIAuthentication yes都改成了GSSAPIAuthentication no
把UseDNS yes也改为了no
从启了sshd服务
平均连接时间是10秒左右 最长需要20秒
下面是我ssh -v 10.1.3.103 的回显，请大家帮忙看看是什么问题导致的这个情况，谢谢：
[root@BJ-3D-Urs-3 ~]# ssh -v 10.1.3.103
OpenSSH_5.2p1, OpenSSL 0.9.8i 15 Sep 2008
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
/etc/ssh/ssh_config line 44: Unsupported option "GSSAPIAuthentication"
debug1: Connecting to 10.1.3.103 [10.1.3.103] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/identity type -1
debug1: identity file /root/.ssh/id_rsa type 1
debug1: identity file /root/.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_5.2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr 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 '10.1.3.103' is known and matches the RSA host key.
debug1: Found key in /root/.ssh/known_hosts:12
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: publickey
debug1: Trying private key: /root/.ssh/identity
debug1: Offering public key: /root/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Next authentication method: password
上面这部分时间很长，下面输入密码后很快。
root@10.1.3.103's password:
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
Last login: Fri Jun 12 16:52:03 2009 from 10.1.3.112
Authorized uses only. All activity may be monitored and reported.

[ 本帖最后由 sainthood 于 2009-6-12 18:38 编辑 ]

Answer 1

反解問題？

1. UseDNS no

复制代码

於 sshd_config 內

Answer 2

原帖由 kenduest 于 2009-6-12 21:28 发表
反解問題？

UseDNS no

於 sshd_config 內

是啊，UseDNS no这个选项在sshd_config中
因为我看网上有帖子说速度慢是由于DNS解析问题，所以no掉就会好了，结果没变化....

Answer 3

都是dns惹的祸

Answer 4

我也遇见过这问题

Answer 5

原帖由 7717060 于 2009-6-13 12:49 发表
我也遇见过这问题

最后怎么解决的？
这事都烦死我了，机器多了干活特别影响效率...