Hi Jakub Thanks for your reply!! I tried following steps: 1. "UsePAM yes" is set in /etc/ssh/sshd_config file. 2. Added "session required pam_limits.so" in /etc/pam.d/sshd file. 3. Added " * hard maxlogins 5 " in /etc/security/limits.conf file. Still, I am not able to restrict the max session to 5. Am I missing something? Also I don't want to put this limit per user, I want to put the limit for max sessions from any user to 5. Thanks & Regards, Amit On Tue, Aug 20, 2019 at 3:05 PM Jakub Jelen <jjelen@xxxxxxxxxx> wrote: > On Tue, 2019-08-20 at 14:05 +0530, Amit Prajapati wrote: > > Hi, > > > > For one of my application, for accepting the ssh connection on > > different > > namespaces, I am instantiating "sshd service" on different > > namespaces. I am > > able to create ssh connection on each namespcae but I want to put a > > limitation on max concurrent ssh connection to 5 for each namespace. > > Is > > there a way to achieve it using openssh. > > I don't think there is a way to do that in the OpenSSH itself, since > each of the ssh sessions on the server is separate process without any > information about the others. > > But you can simply do that using pam, for example using pam_limits > module, and maxlogins option in limits.conf. > > Regards, > -- > Jakub Jelen > Senior Software Engineer > Security Technologies > Red Hat, Inc. > > _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
