Xxx Netgr Exclusive -

sudo nano /etc/netgroup Add your netgroups. For example:

netgroup: nis files 1. Restricting SSH Access via netgr In /etc/ssh/sshd_config : xxx netgr

AllowGroups @admins DenyGroups @contractors Then ssh -v will check the netgr map before granting a login. In /etc/exports : sudo nano /etc/netgroup Add your netgroups