8. #라운드로빈#NFS#DHCP

1. 라운드로빈

vi itbank.vm.zone

$TTL 1D
@       IN      SOA                     @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
                NS      ns.itbank.vm.
                A       192.168.1.120

ns              A       192.168.1.120
www             CNAME   webserver.itbank.vm.
webserver       100     A       192.168.1.100
                100     A       192.168.1.110

 

00:50:56:27:D5:7F

 

 

2. DHCP

 

수업준비

# yum install dhcp* -y

[root@sevas dhcp]# cat /etc/dhcp/dhcpd.conf

[root@sevas dhcp]# cd /usr/share/doc/dhcp*
[root@sevas dhcp-4.1.1]# cp dhcpd.conf.sample /etc/dhcp/dhcpd.conf
cp: overwrite `/etc/dhcp/dhcpd.conf'? y
[root@sevas dhcp-4.1.1]# vi /etc/dhcp/dhcpd.conf <====샘플 파일 을 복사했기때문에 정리 해준다
[root@sevas dhcp-4.1.1]# /etc/rc.d/init.d/network start 데몬 시작

​

# ​vi /etc/dhcp/dhcpd.conf

​

# A slightly different configuration for an internal subnet.

​subnet 192.168.1.0 netmask 255.255.255.0 {                          IP대역
range 192.168.1.101 192.168.1.180                                     포함주소
option domain-name-servers 8.8.8.8;
option domain-name "internal.example.org";
option router 192.168.1.20;
option broadcast-address 192.168.1.255;
default-lease-time 600;
max-lease-time 7200;
}
​

 

 

 

[root@Linux2 ~]# cd /usr/share/doc/dhcp-4.1.1/
cp dhcpd.conf.sample /etc/dhcp/dhcpd.conf

     

     48 subent 192.168.1.0 netmask 255.255.255.0 {​    IP대역

     49 option domain-name-servers 192.168.1.120;     포함주소
     50 option domain-name "itbank.vm";
     51 # option routers 10.5.5.1;
     52 option broadcast-address 192.168.1.255;
     53 default-lease-time 600;
     54 max-lease-time 7200;

 75 host fantasia {
     76   hardware ethernet 00:50:56:27:D5:7F;  맥주소
     77   fixed-address 192.168.1.210;   

 

1.2에서 name server 먼저 설정
2.1,1-2 에서 cd /var/html/www 로이동
3.cd /var/html/www 로이동 해서 echo www site1 > index.html , echo www site2 > index.html만들고
4.웹사이트로 이동해서 확인

vi itbank.rev

$TTL 1D
@       IN      SOA                     @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
                NS      ns.itbank.vm.

120(ip주소)     PTR     itbank.vm.(ip호스트주소)
100             PTR     ww2.itbank.vm.

 

2. NFS

yum istall nfs* -y
[root@sevas ~]# /etc/rc.d/init.d/nfs restart
[root@sevas ~]# vi /etc/exports
/share          192.168.1.110(rw,sync)
/share2         192.168.1.120(ro,sync)

[root@sevas ~]# mkdir /share /share2
[root@sevas ~]# chmod 707 /share /share2
[root@sevas ~]# ls -l
[root@sevas ~]# /etc/rc.d/init.d/nfs restart
[root@sevas ~]# exportfs -v
/share          192.168.1.110(rw,wdelay,root_squash,no_subtree_check)
/share2         192.168.1.120(ro,wdelay,root_squash,no_subtree_check)

서버확인 1-2
[root@sevas ~]# showmount -e 192.168.1.100
Export list for 192.168.1.100:
/share2 192.168.1.120
mount -t nfs 192.168.1.100:/share /var/www/html
vi /etc/fstab
192.168.1.110:/share /mnt/nfs /nfs defaults 1 2
장치명   마운트  파일시스템

1-2
/nfs1           192.168.1.0/255.255.255.0(rw,sync)
/nfs2           *(ro,sync)

1-1
[root@sevas nfs2]# mount -t nfs 192.168.1.110:/nfs1 /nfs1
[root@sevas nfs2]# mount -t nfs 192.168.1.110:/nfs2 /nfs2
cd /nfs1
touch 1.txt

1-2
cd /nfs1 에가서 1.txt만들어 졌는지 확인