Skip to main content

Unable to login to SSH even with a correct password

 In Linux world, SSH is a life. Especially, now with remote work, data center, servers without graphical interface. If you can't login via SSH,  even with a correct password but other user accounts is able to login. Then the person need to check with HR whether he or she is still on the payroll. :)  😄

Of course, glitch, errors and other issues will always be a part of this technology. Nothing is perfect in this world, so errors, technological issues will always be there it won't go away.

So, what will will you do if you are sure that the SSH password and username is correct? Like you can login to Server 1, Server 2 but unable to login with Server 3 using the same credentials? If other users with sudo credentials are still able to login, the sudo account can be used to troubleshoot the specific SSH account that is having the issue.

What would be the first thing to do?

Well, joke as it seems that "restart works always" but the reality is not far from there. Restart SSHD service since it's the one that handles SSH connection.

systemctl restart sshd  << This would be the first thing to do then try again.

If restarting the service, doesn't work. Then checking logs, will not hurt to find some clues.

However, if restarting sshd did not work and logs does not provide any ideas.

Then, try restarting System Security Services Daemon (SSSD). This service is somehow connected to an LDAP service, so if you are using LDAP in your environment then restarting this service might help.

systemctl restart sssd  << Try restarting this service  and check if it will help, this will not reboot the VM or the physical machine so it is safe to issue this command

After restarting this service and everything works, then I guess it is your lucky day.

However, if still unable to login via SSH with a correct username and password. Then I guess if the opportunity allows to reboot the server, then its better to do it.

Or if there's a documentation on what was the last thing done to the server, then its better to undo what was done and check if able to login successfully. 

If still doesn't work, then need to check other possible steps on how to resolve the issue, just like checking if public SSH keys are present; or the system is not blocking or restricting user accounts.



Cheers! Take care. Till next Time.

Stay safe! and Keep things up! 

Do ASAP, Always Say A Prayer...

Practice O.T.G. = Obedience To God

Make time for Prayer and Meditation.

================================

Free Android Apps:

Click  links below to find out more:

Free Android Apps:

Click  links below to find out more:

Excel Keyboard guide:

https://play.google.com/store/apps/details?id=chrisjoms.myexcelapplicationguide

Heaven's Dew Fall  Prayer app for Android :

https://play.google.com/store/apps/details?id=soulrefresh.beautiful.prayer

Catholic Rosary Guide  for Android:

Pray the Rosary every day, countless blessings will be showered upon your life if you recite the Rosary faithfully. 

https://play.google.com/store/apps/details?id=com.myrosaryapp

Divine Mercy Chaplet Guide (A Powerful prayer) BFF = Be Filled Faith:

https://play.google.com/store/apps/details?id=com.dmercyapp

Labels:

Comments

Post a Comment

Popular posts from this blog

WMIC get computer name

WMIC get computer model, manufacturer, computer name and  username. WMIC is a command-line tool and that can generate information about computer model, its manufacturer, its username and other informations depending on the parameters provided. Why would you need a command line tool if there’s a GUI to check? If you have 20 or 100 computers, or even more. It’s quite a big task just checking the GUI to check the computer model and username. If you have remote computers, you need to delegate someone in the remote office or location to check. Or you can just write a batch file or script to automate the task. Here’s the code below on how get computer model, manufacturer and the username. Open an elevated command prompt and type:     wmic computersystem get "Model","Manufacturer", "Name", "UserName" Just copy and paste the code above, the word “computersystem” does not need to be change to a computer name. A...
Post a Comment
Read more

Notepad++ convert multiple lines to a single line and vice versa

Notepad++ is an awesome text editing tool, it can accept regex to process the text data. If the data is in a “.csv” format or comma separated values which is basically just a text file that can either be opened using a text editor, excel or even word. Notepad++ can process the contents of the file using regex. Example if the data has multiple rows or lines, and what is needed is to convert the whole lines of data into a single line. Notepad++ can easily do it using regex. However, if the data is on a single line and it needs to be converted into multiple lines or rows then regex can also be used for this case. Here’s an example on how to convert multiple rows or lines into a single line. Example data: Multiple rows, just a sample data. Press Ctrl+H, and  on "Find what" type: [\r\n]+ and on "Replace with" type with: , (white space) --white space is needed if need to have a space in between the data. See image below, "Regular Expression" must be se...
1 comment
Read more

Print error 016-799 - Fuji Film Xerox

016-799 Fuji Xerox or Fuji Film print error code. That shows a description error as “Print instruction Fail detected in decomposer.” The error code and error description are alien languages for users and even system administrators who are not familiar with Fuji Xerox error code. The error code is quite simple and easy to fix, if the job print goes to the printer but print out doesn’t come out. So, basically the print job was received by the printer, but the printer just doesn’t know what type of paper or what size to use or which tray to utilize for the print out. In some instances, this is just a paper mismatch but the error description; if using Windows 10 to print does not exactly points to what is the issue. First thing to check, is the paper size selected by the user to print. Example, if the printer configuration is A3 and A4 sizes only. But then the person printing the file accidentally chooses “A4 Cover” then this error 016-799 will occur. ...
6 comments
Read more