1. Why "d" is postfix in almost every service name of Linux
like httpd, dhcpd?
2. how to restrict su & ssh services for some users?
3. how can we configure a default gateway for 10 n/w cards
in a server?

Answer Posted / kailas marathe

D Means Deamon. Deamon are nothing but start up script
which are used to start & stop the service.

we can restrict the SU & ssh service for some users by
applying Iptables or by applying in /etc/hosts.deny.
we can configure the default gateway for 10 n/w users by
configuring the gateway in ifcfgeth0 file.

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