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In FirstNode, ping to check if Slave1 is reachable: $ ping 2.2.2.2 (the result must give that Slave1 is reachable, press Ctrl+c to stop the operation) $ ifconfig (FirstNode inet is 1.1.1.1 and Slave1 inet is 2.2.2.2) Check the connectivity for all nodes and ping them all to each other.In our work, we have 4 nodes, 2 running Ubuntu and the rest are Windows, we will do the following: In Ubuntu (FirstNode and Slave1) $ ping $ ping 10.0.0.1 Example of the work: Right-click each rule and choose Enable Rule.Īfter all steps above, you can now ping windows machine via any Ubuntu one in the same network via this command:.In the right pane, find the rules titled File and Printer Sharing (Echo Request – ICMPv4-In).From the left pane of the resulting window, click Inbound Rules.Search for Windows Firewall, and click to open it.It’s a bit complicated when go with windows, that’s because of windows fire wall could block all the ways to ping it via Ubuntu, so follow these steps to allow windows firewall accept the ping request from different OS:

Note: whatever the numbers of nodes you have, you must ping all of them to each other Ping Ubuntu to Windows Note: the ping procedure will not stop unless you press Ctrl+c. In the FirstNode machine, ping of the Salve1 machine and do the vice versa from Slave1 to the FirstNode.After ifconfig command, find in the result a section called “inet address”, this is the private ipaddress that we need to ping this machine from all other ones.

#Ssh keygen windows alternate username install#

If it was about net tools: $ sudo apt-get install net-tools.

Note: in Ubuntu, if “ifconfig” didn’t work, this means that either you don’t have a permission or the “net-tools” are not installed, so for both of these cases above use one of these commands:

To check if each node is reachable to all other nodes use this command:.

Ping all nodes to each other (Ubuntu to Ubuntu) This nice trick will keep you in windows shield armed with Ubuntu weapons.Īfter Ubuntu App being installed, just follow the same steps that you used to do with Ubuntu before.

#Ssh keygen windows alternate username windows 10#

Many sites talk about Putty when it about SSH work, even windows has its own SSH server and client to install, but, when it comes to windows 10 or server 2016, there is no cmd command to share the SSH key with all other nodes, thus, I recommend you to install Ubuntu App from the Microsoft store, just open your store and write “Ubuntu” then download it. SSH installation for Windows (10 and server 2016) Note: Stop here if you are looking for single node setup. Warning, if the system asked for a password, means something went wrong, you have to go back and correct it.

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$ ssh localhost then write yes in full word To start the SSH server, paste this command and you will asked for your current user password, type it and hit enter:.$ chmod 700 ~/.ssh/authorized_keys Start SSH server We need now to re-permission the file to have all the permissions of hduser.Go back home by apply this commad $ cd ~.$ cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys.Copy public key to authorized key file, then edit the permission:.

$ ssh-keygen then press a bunch of enter to reach the fig (1) below

Create SSH key for communication, this key is needed in communication between process and nodes.

Note 2, if you face this error “unable to locate package”, “open package ssh server has no installation candidate”, then your server has SSH client and SSH server, you have to delete SSH client by apply this commad: $ sudo apt-get remove openssh-client $ sudo apt-get autoclean $ sudo apt-get install openssh-server

#Ssh keygen windows alternate username software#

Note 1, if you face a problem or error, then you have to install open-SSH server using Ubuntu software center. It will ask you hduser password, write it and you will authorized by (y/n), press y. Hadoop need SSH to communicate and control the remote nodes, every node needs a SSH key to communicate with it. Install and configuring SSH for Ubuntu (All machines)

#Ssh keygen windows alternate username how to#

To have 2 or more nodes running hadoop, click here to know how to rock it…!.

At least 2 nodes running Linux Ubuntu or Windows 10 or Windows server 2016.

Hadoop need SSH to guaranteed login to any Datanode without username and password, however, Hadoop is a distributed system needs to login quickly to all datanodes that’s already has, the recommended and quickly way to do this, is by install SSH key to all nodes, and link them to the Namenode.