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What Is SSH?

Secure Shell, which is commonly known as SSH, is a protocol that is used to log in to the server in a secure way, and it is most commonly used by Linux-based servers SSH can be used in Linux and Windows OS based hosting using the software tools. For Linux, you can use your terminal to connect to the server, while for Windows, you can use PUTTY or KITTY software to connect to the server. SSH is an essential tool to master as a system administrator.
NoteIn shared hosting, you will be having a restriction for all your access. Hosting providers will set a limit and restriction as per their plans or their terms. And also in few lower shared hosting plans you will not get SSH access.

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What are the advantages of using SSH for managing the website?

  1. SSH is a more secure network connection when compared to FTP.
  2. Cache Clearing in the server can be done easily through SSH in seconds when compared to FTP Login Or Panel Login.
  3. Very quick in Live Editing and saving the files, though no need to download to the Local system.
  4. Installing and managing applications via the command line.

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Why do we need SSH to maintain a server?

  1. Services LIKE mysql, Apache, Java, etc. can be started or stopped easily from the server end using SSH.
  2. The firewall can be controlled over SSH. For example, to Block or unblock the IP addresses, we can use SSH.
  3. Solving the issues by checking the logs on the server end.
  4. Which service takes more load on the server can be monitored over SSH.
  5. Removing the files from the server is very quick over SSH compared to FTP and other protocols.

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How to access the SSH in shared hosting?

For SSH access in shared Linux hosting, you have to make sure that your hosting provider has enabled SSH Access for your account. If it’s already been enabled, you can use the steps below to connect to the SSH using Putty. In Windows, to access SSH you need will need putty software to be installed in your local. Now you need to generate a PPK key through your cPanel.

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Step 1: Login to cpanel >> click on the SSH

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Step 2: After you click on SSH Access >> Under the Manage SSH Keys, click on Generate a new Key

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Step 3: After click on generate a new key >> you need to enter the password >> click on generate a key. Save the password (make sure you remember the password)

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Step 4: Once the key is generated, click on GO Back and you can see the Key generated. Click on manage as mentioned in the screen.

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Step 5: Click on Authorise -You need to Authorise the key which you have generated.

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Step 6: Now you need to download the Private key.

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Step 7: Enter the password that you have created at the time of generating the key, and click on convert

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Step 8: Now you can download the file locally and save it.

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Step 9: Open Putty, enter the Server IP, and add the RSA key in Putty as mentioned on the screen.(category >> SSH >> auth)

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Step 10: After you upload the file which you have downloaded,>> click on open now, enter your server IP and port 22, select SSH, and click on open to connect to SSH

Following the above steps, you can connect to SSH.

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Login Issues in SSH

When a domain name is moved from one server to another, an issue with the SSH logins might creep up. Most of the warning dialogs that most of the SSH programs give look something like as shown below:
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGEDIT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)!It is also possible that the RSA host key has just been changed.The fingerprint for the RSA key sent by the remote host is 06:ea:f1:f8:db:75:5c:0c:af:15:d7:99:2d:ef:08:2a.Please contact your system administrator.Add correct host key in /home/user/.ssh/known_hosts to get rid of this message.Offending key in /home/user/.ssh/known_hosts:4RSA host key for domain.com has changed and you have requested strict checking.Host key verification failed.
Here the SSH program will be printing this message and more often the text, it prohibits the user from connecting to the suspicious website. This problem rises when the website has changed the servers and the new servers RSA key which is being transmitted when the authentication is different from that of the old server. In the case of a migration you will be reasonably sure that the RSA key change is not an accident but to connect to the new server one must remove the line in .ssh/known_hosts that will correspond to the domain name. This could be done by editing the ‘known_hosts’ by hand or if the machine is having the Perl installed then you can use this one-liner:
Now you need to substitute the actual domain for example.com by always making sure of including the backslash before the dot. If you are having many domains that have moved you must be repeated this step for each one.

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How to use SSH in Linux?

All modern Unix-like systems (Linux, OS X, BSDs, and others) include a command-line ssh client. To login to your computer from a Unix-like machine, go to a command-line and type: ssh username@computer name or IP address Example: ssh [email protected] (or) ssh [email protected] You should get the usual password prompt (or be told you can’t log in if passwords are disabled).See ssh keys if you want to authenticate using keys instead of passwords. If you are facing any issues or If you need any assistance, feel free to contact our technical team members as they are available 24/7 via phone call, chat, ticket system.