» Linux » Examen sur Linux » Examen 201 : Advanced Administration » Section 5 » Question 6/23

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6.You have been asked to block network access to an NFS sever. You need to block all access except NFS access. Which of the following actions would you take to achieve this?

Make sure that xinetd is switched off.
Place "ALL: ALL" in /etc/hosts.deny and "NFS: ALL" in /etc/hosts.allow
Add IPChains rules to deny all incoming packets except for portmapper
Place "ALL: ALL" in /etc/hosts.deny and "port map: ALL" in /etc/hosts.allow
Ensure that the nfs-access.o module is configured into the kernel and use the command "nfs-ctlallow <your IP range>" to provide the required access

Explanation

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