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What is SSH, how to change ssh port and implement ssh hardening on centos 7 server with CWP?

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What is SSH, how to change ssh port and implement ssh hardening on centos 7 server with CWP?

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  1. What is SSH, how to change ssh implement ssh hardening on centos 7 server with CWP? port and www.cloudminister.com

  2. The SSH protocol (also referred to as Secure Shell) is a method for secure remote login from one computer to another. It provides several alternative options for strong authentication, and it protects the communications security and integrity with strong encryption.

  3. oudminister.comwww.cloudminister.comwww.cloudminister.comww www.clo ister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo oudminister.comwww.cloudminister.comwww.cloud ww.cloudminis udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comw oudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou w.cloudminister.comwww.cloudminist cloudminister.comwww.cloudminister.comw oudminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminist ww.cloudminister.com oudminister.comwww.cloudminister.comwww.cloudministe w.cloudminister.comwww.clo dminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo Change SSH Port Change SSH Port Change SSH Port Open CWP panel in browser and login with admin account by using https://your_domain.com:2087 (2087 for secure login). mwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloud ter.comwww.cloudminister.comwww.cloudminister.comwww.cloudm www.cloudminister.comwww.cloudminister.comwww.cloudm udminister.comwww.cloudminister.comwww.cloudm ter.comwww.cloudminister.comwww.cloudm www.cloudminister.comwww.cloudm oudminister.comwww.cloudmi ter.comwww.cloudmin www.cloudmini dminist

  4. oudminister.comwww.cloudminister.comwww.cloudminister.comww www.clo ister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo oudminister.comwww.cloudminister.comwww.cloud ww.cloudminis udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comw oudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou CUSTOM ANTIBIOTICS AND VACCINES w.cloudminister.comwww.cloudminist cloudminister.comwww.cloudminister.comw oudminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminist ww.cloudminister.com oudminister.comwww.cloudminister.comwww.cloudministe w.cloudminister.comwww.clo dminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo CLICK ON SERVICES CONFIG AND SELECT SSH CONFIGURATION UNDER IT. mwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloud ter.comwww.cloudminister.comwww.cloudminister.comwww.cloudm www.cloudminister.comwww.cloudminister.comwww.cloudm udminister.comwww.cloudminister.comwww.cloudm ter.comwww.cloudminister.comwww.cloudm www.cloudminister.comwww.cloudm oudminister.comwww.cloudmi ter.comwww.cloudmin www.cloudmini dminist

  5. udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudmudminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudm udminister.comwww.cloudminister.comwww.cloudminister.comwww cloudminister.comwww.cloudminister.comww udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comww ww.cloudminister.comw ww.clou PORT 22 IS THE DEFAULT PORT ON WHICH SSH SERVICE LISTENS TO ENHANCE THE SECURITY YOU SHOULD CHANGE IT. udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister w.cloudminister.comwww.cloudministe ww.cloudminist w oudminister.comwww.cloudminister.comwww.cloud oudminister.comwww.cloudminister.comwww.cloudminister. w.cloudminister.comwww.clou dminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo ter.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo www.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloud er comwww.cloudminister.comwww.cloudminister.comwww.cloudm ww.cloudminister.comwww.cloudminister.comwww.cloudm dminister.comwww.cloudminister.comwww.cloudmi er comwww.cloudminister.comwww.cloudmi www.cloudminister.comwww.cloudmi udminister.comwww.cloudmi ter.comwww.cloudmin ww.cloudminis dminist

  6. dminister.comwww.cloudminister.comwww.cloudminister.comwww.clouddminister.comwww.cloudminister.comwww.cloudminister.comwww.cloud w.cloudminis dminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudministe dminister.comwww.cloudminister.comwww.cloudminister.comww oudminister.comwww.cloudminister.comw dminister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comw ww.clo NOW EDIT THE CONFIGURATION FILE BY CHANGING AND UNCOMMENT PORT NO FROM 22 TO 2221 YOU CAN USE ANY PORT NUMBER THAT IS NOT USED WITH OTHER SERVICES AND CLICK ON SAVE CHANGES. NOW RESTART THE SSH SERVICE WHICH IS FOUND IN THE DASHBOARD. cloudminister.comwww.cloudminist w.cloudminister.com cloudminister.comwww.clo dminister.comwww.cloudminister.comwww.cloudministe udminister.comwww.cloudminister.comwww.clou minister.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clo ter.comwww.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou www.cloudminister.comwww.cloudminister.comwww.cloudminister.comwww.clou udminister.comwww.cloudminister.comwww.cloudminister.comwww.cloud er comwww.cloudminister.comwww.cloudminister.comwww.cloudm ww.cloudminister.comwww.cloudminister.comwww.cloudm dminister.comwww.cloudminister.comwww.cloudmi r comwww.cloudminister.comwww.cloudmin ww.cloudminister.comwww.cloudmin udminister.comwww.cloudmin er.comwww.cloudmin ww.cloudminis dminist

  7. Configure CSF firewallChanging Port for SSH is not allowed to access until you don’t give the Port number inside the CSF firewall.To configure it  click on security and select CSF firewall,  then click on Firewall Configuration and replace in the entry of PORTS_sshd=”22” with PORTS_sshd=”2221” and click on save changes.

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  9. Now test this by using ssh without port change and with port change you will see the effect.

  10. OTHER SSH HARDENING 1) LIMIT MAX AUTHENTICATION ATTEMPTS By setting a low threshold for login attempts, you can help prevent brute force attacks. Open the SSH daemon configuration file again with the command: sudo vi /etc/ssh/sshd_config Look for the line: # MaxAuthTries 6 Change that line to: MaxAuthTries 3 Save and close the file. Restart the SSH server with the command: sudo systemctl restart sshd

  11. 2) Disable empty passwords THERE ARE SOME SYSTEM USER ACCOUNTS THAT ARE CREATED WITHOUT PASSWORDS. THE ADMINISTRATOR OF A LINUX MACHINE CAN ALSO CREATE STANDARD USERS WITHOUT PASSWORDS. OUT OF THE BOX, SSH IS CONFIGURED SO THAT IT DOESN’T PREVENT EMPTY PASSWORDS FROM BEING ALLOWED. LET’S FIX THAT. OPEN THE SSH DAEMON CONFIGURATION FILE AGAIN WITH THE COMMAND: SUDO VI /ETC/SSH/SSHD_CONFIG LOCATE THE LINE: #PERMITEMPTYPASSWORD NO CHANGE THAT WITH: PERMITEMPTYPASSWORDS NO SAVE AND CLOSE THE FILE. RESTART THE SSH SERVER WITH THE COMMAND: SUDO SYSTEMCTL RESTART SSHD

  12. CONCLUSION The above configuration shows how to configure different port number for SSH server and hardening. different SSH

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