CentOS 6.5 user login problem

Posted August 27, 2014 5.2k views


I am having two users in my CentOS installation

user1 (name changed)

user1 is having root privilege also

Problem is, while I was working in Putty with user1 login, my PC had a power failure.. 30 mins later when I got the power back on, I found user1 was having access denied when trying to login.

I logged in via root and I checked with command


and found user1 still login with my previous IP (my ISP gives dynamic IP). So I ran command

skill -KILL -u user1

I checked and found that user is logout..

Since then still I cant login to that user.. I changed its password via

passwd user1

Even with that new password also, user1 cant be logged in..

Then I checked log file and I found following error

User user1 from not allowed because not listed in AllowUsers

What can I do ?


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1 answer

Try to check your /etc/ssh/sshd_configd file and check for the directive “AllowUsers”.. You may need to add the user for the same and restart ssh .. Depending on your environment setup..

  • Is there any DO guide available for this process ?? (Sorry me a linux noobe)

    Also, should I worry about security ?? Since I described the process when it happened, as can it happen automatically or is my user compromised ??