On Tue, 2020-02-25 at 11:44 +0100, mlrx wrote: > Le 25/02/2020 à 10:56, Amit Prajapati a écrit : > > Hi, > > > > Is there a way to restrict the number of active SSH client > > connections to > > an sshd server. > > > > Thanks & Regards, > > Amit > > Hi, > > (Not a specialist but I make a try. It seems to be a good way to > learn.) > > It seems to be only possible on the server configuration. > > Clever or not, maybe use some conditional parameters in > sshd_config ? > Something like: > > Match Group adminA > MaxSessions 8 > Match Group adminB > MaxSessions 4 > Match User UserA > MaxSessions 1 > Match User UserB > MaxSessions 2 This does not limit connections, but only multiplexed sessions inside a single connection. To limit amount of shells, you can use pam_limits [1], but it does not catch non-shell connections such as sftp, port forwarding, jumps to other servers and so on. For that, you need to use something home- cooked or some non-standard tool. https://serverfault.com/a/245348/186199 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
