question on subnet, dhcpd and firewall
Hi everyone,
I just failed a network's test. In this one, there were the questions that I didn't know how to answer it. Till now, it's still be a big question for me...so I posted the questions on the forum with a hope that someone can help me.
the network 172.16.0.0 will divided in 3 segments S1, S2, and S3. S1 has 4000 stations, s2 has 8000 stations, and s3 1000 stations.(see attachment)
1)give the netmask, valid range, and network add for s1,s2,s3
2)on pc of network 192.168.0.0/24 configure 2 servers DHCP dynamic, these machines of this network could function at the same time?. Justify your respond.
3)Certain stations of segment S1 have windows like OS, others linux.
They are belong to info's domain. They must update all of I/O in session of the users on linux server, IP 172.16.80.1 will offer in sharing (read and write). What are the services must be start on server 172.16.80.1? Justify it.( I think this one concerned to vfstpd?)
4)question on dns
The machines of network 190.1.1.0/255.255.255.224 belong to Internet domain "compta.uccle."
IP add. 190.1.1.2 is a master server, name IP add for this domain.
IP add. 190.1.1.4 is a second server, for the resolution name IP's address for this domain.
the machine IP 190.1.1.2 has FQDN "dns.compta.uccle" and "mail.compta.uccle"
La machine with IP 190.1.1.3 has a FQDN "relai.compta.uccle"
The machine got "mail.compta .uccle" must defined like server smtp principal for the domain compta.uccle and the machine relay like server smtp in case of mail server principal crash ( "mail.compta.uccle" for the compta.uccle 's domain)
Fill the files following locate on the master server whose is the reference of the secondary server.
/etc/named.conf
options {
directory “/var/named”;
};
Zone ‘’.’’{
type hint*;
file ‘’root*.hint’’*;
}*;
zone “ “ {
type ;
file “compta.uccle”;
};
zone “ 1.190. “ {
type
file “compta.uccle.rev”;
};
/var/named/compta.uccle
@ IN SOA (
1 ; Serial
8H ; Refresh
2H ; Retry
4W ; Expire
1D) ; Minimum TTL
question on firewall
which router will configure a firewall?
if this router is a Linux machine, give in order the netfilter's rules which will following the following restrictions:
All the machines of local network must access to Internet.
on the machine 192.168.0.3 a Web server must access to the Internet.
dns.compta.uccle server can have the recursive
None of other service can access to the Internet.
Thanks for your helps.
Bamiday
Last edited by bamiday; 12-16-2011 at 12:34 PM.
Reason: somme missing words
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