ssh：连接到主机从端口22：连接超时

Question

被修改： -

我已经在两台不同的机器上完成了单节点集群，我已经将其中一台作为主机（192.168.1.1）和其他m / c作为从机（192.168.1.2），我成功地能够在两台机器之间ping通，我已进行以下更改以进入2节点群集更新： -

两台机器上的

/ etc / hosts hosts.allow

All :  Ashish-PC 192.168.1.1 : allow
All  : slave 192.168.1.2 : allow

主文件

  Ashish-PC

带

的奴隶文件

  Ashish-PC 
  slave

将本地主机公钥复制到远程主机（从站）时出错：端口22

 ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@slave
 /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any    that are already installed
/usr/bin/ssh-copy-id: ERROR: ssh: connect to host slave port 22: Connection timed out

以及当我在主服务上启动所有dfs时，还会： -

 bin/start-dfs.sh
starting namenode, logging to /usr/local/hadoop/libexec/../logs/hadoop-Ashish-namenode-  Ashish-PC.out
slave: ssh: connect to host slave port 22: Connection timed out
Ashish-PC: starting secondarynamenode, logging to       /usr/local/hadoop/libexec/../logs/hadoop-Ashish-secondarynamenode-Ashish-PC.out
slave: ssh: connect to host slave port 22: Connection timed out

复制键时

： -

ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@slave
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: ERROR: ssh: connect to host slave port 22: Connection timed out

我使用过cygwin，ssh在PC上工作正常，我经历了一些改变端口号22的建议（因为ISP问题），但我不想这样做because。 提前感谢您的帮助和回应。

Answer 1

允许主人通过Windows防火墙进行通信，在家庭和公共场合添加sshd ...

确保在每个节点上启动sshd服务以进行通信。

Answer 2

这对我有用：

1

sudo vi /etc/ssh/sshd_config 

2。 删除评论

#Port 22 
#Protocol 2