Problems with logging in to Linux server, AD security group.
by johnbison from LinuxQuestions.org on (#4T6NN)
I am pretty new to Linux and am in charge of a couple of Linux boxes after the previous admin left. We run AD in our shop and everyone is on a Windows domain. Access to these Linux servers are driven by AD security groups.
Here is where I am confused. I added my domain account to the AD security group for this Linux box. I thought that would be it and voila, access, but when I try to log in I get "remote side unexpectedly closed network connection" or "access denied". I logged in as root and ran iptables -L and I am allowed to log in via my IP address. I also checked /etc/sssd/sssd.conf on that Linux server and sure enough the ad_access_filter is set to that security group I just added myself to.
Am I missing another step after this? I have a feeling I probably am but I don't know where to start. I am looking at other members of that Linux security group and I see on the server (as root) and that appears to be the way that the previous admin added them or gave them access. Unfortunately he left in a hurry so I don't have much for notes or a helping hand. I appreciate any advice you can send my way.
Here is where I am confused. I added my domain account to the AD security group for this Linux box. I thought that would be it and voila, access, but when I try to log in I get "remote side unexpectedly closed network connection" or "access denied". I logged in as root and ran iptables -L and I am allowed to log in via my IP address. I also checked /etc/sssd/sssd.conf on that Linux server and sure enough the ad_access_filter is set to that security group I just added myself to.
Am I missing another step after this? I have a feeling I probably am but I don't know where to start. I am looking at other members of that Linux security group and I see on the server (as root) and that appears to be the way that the previous admin added them or gave them access. Unfortunately he left in a hurry so I don't have much for notes or a helping hand. I appreciate any advice you can send my way.