Solved

Unable to login SSH with any user name/password on Centos server - Checked the basics

Posted on 2009-04-07
6
1,038 Views
Last Modified: 2012-05-06
I have a problem and any suggestions or direction on what I might do would be helpful.

I have a Centos 5.X Server with Direct Admin installed on it. I have a root user and password that worked and I was able to SSH in fine. Out of nowhere the password did not work/unable to login. So I had a KVM hooked up and I was able to login root locally over the KVM.
I have checked the basics.
Checked SSHD Config to allow root login and password authentication - Good
Restarted the SSHD - Came Back fine.
I created a wheel group user and tried to login and then su -, it will not let me login with the wheel group user either. I can get to the login prompt just fine just will not authenticate any user what so ever. I have even compared settings to other servers for the SSHD config.
But like I said locally logging in is no problem. Just no ssh ability to login and nothing seems out of place.

If anyone could provide me some suggestion on possible trouble shooting or checks that might be the issue it would be appreciated. Also no updates were done to the server that I am aware of. Just a reboot and a single user mode reset of password before this started.

Thanks for your help in advance.
0
Comment
Question by:hhopper
  • 3
  • 2
6 Comments
 
LVL 7

Expert Comment

by:martin_2110
Comment Utility
any logs in /var/log/messages or /var/log/secure ?
0
 

Author Comment

by:hhopper
Comment Utility
There are Logs, Just FTP logins and Actions. And Drupal Logins and Logouts, and I looking for something in particular?
0
 
LVL 7

Expert Comment

by:Morne Lategan
Comment Utility
What happens if you log into the console and try to ssh to localhost?
0
What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

 

Author Comment

by:hhopper
Comment Utility
When I try and login ssh to localhost on the box it says Permission Denied. For root and a wheel user.

Humm!!!
0
 
LVL 7

Expert Comment

by:Morne Lategan
Comment Utility
try

ssh -v localhost

for debug info on why its kicking you

Might be a file permission. sshd is paranoid about incorrect file permissions
0
 

Accepted Solution

by:
hhopper earned 0 total points
Comment Utility
I FOUND THE ISSUE!
For some reason there was a added line on the bottom of the sshd_config

AllowUsers ad***

Not sure how it got there, I am guessing maybe DirectAdmin? Not Sure about that
I added root to the AllowUsers and it works fine.

I never even thought or looked at the very bottom of the file.

Thanks for everyones help, but I guess it was of my own doing!
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Suggested Solutions

How many times have you wanted to quickly do the same thing to a list but found yourself typing it again and again? I first figured out a small time saver with the up arrow to recall the last command but that can only get you so far if you have a bi…
Little introduction about CP: CP is a command on linux that use to copy files and folder from one location to another location. Example usage of CP as follow: cp /myfoder /pathto/destination/folder/ cp abc.tar.gz /pathto/destination/folder/ab…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now