實驗室使用板子的ubuntu10.04虛擬機的網絡配置
實驗室和寢室的網絡有不同。
昨天來到實驗室，要想使用nfs，用虛擬機裡的ubuntu10.04訪問外網，必須要設置網絡。
桂工的網絡很有特點。每個機子的ip地址幾乎就是固定分破的。而且有很多子網存在。
ubuntu上用drcom的客戶端可以訪問。vmware可以設置與主機共享上網。
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設置都是在etc目錄下的。
昨天修改了hostname。
今天修改網絡配置。主要涉及到 /etc/network下的interfaces和/etc/resolv.conf
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學校實驗室的網絡信息：
按照這個信息，把虛擬機裡的ubuntu10.04設置為
1 # The primary network interface
2 auto eth0
3 iface eth0 inet static 不是很懂是什麼意思。
4 address 202.193.89.253 自己設定的，不是網關分配的。
5 netmask 255.255.255.192 這個子網掩碼，最後是192
6 gateway 202.193.89.254
7 #iface eth0 inet dhcp
8 auto lo
9 iface lo inet loopback
10
~
把resolv.conf修改下：
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ping下，成功了：
root@ubuntu:/etc# cd network
root@ubuntu:/etc/network# ls
if-down.d if-post-down.d if-pre-up.d if-up.d interfaces interfaces-502
root@ubuntu:/etc/network# vi interfaces
root@ubuntu:/etc/network# ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.027 ms
^[[A64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.026 ms
^C
--- 127.0.0.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.026/0.026/0.027/0.005 ms
root@ubuntu:/etc/network# ping 202.193.80.203
PING 202.193.80.203 (202.193.80.203) 56(84) bytes of data.
^C
--- 202.193.80.203 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms
root@ubuntu:/etc/network# ping 202.193.89.203
PING 202.193.89.203 (202.193.89.203) 56(84) bytes of data.
64 bytes from 202.193.89.203: icmp_seq=1 ttl=64 time=4.82 ms
64 bytes from 202.193.89.203: icmp_seq=27 ttl=64 time=0.082 ms
64 bytes from 202.193.89.203: icmp_seq=28 ttl=64 time=0.193 ms
64 bytes from 202.193.89.203: icmp_seq=29 ttl=64 time=0.191 ms
64 bytes from 202.193.89.203: icmp_seq=30 ttl=64 time=0.114 ms
64 bytes from 202.193.89.203: icmp_seq=31 ttl=64 time=0.110 ms
64 bytes from 202.193.89.203: icmp_seq=32 ttl=64 time=0.116 ms
64 bytes from 202.193.89.203: icmp_seq=33 ttl=64 time=0.116 ms
64 bytes from 202.193.89.203: icmp_seq=34 ttl=64 time=0.121 ms
64 bytes from 202.193.89.203: icmp_seq=35 ttl=64 time=0.156 ms
64 bytes from 202.193.89.203: icmp_seq=36 ttl=64 time=0.118 ms
64 bytes from 202.193.89.203: icmp_seq=37 ttl=64 time=0.155 ms
64 bytes from 202.193.89.203: icmp_seq=38 ttl=64 time=0.194 ms
64 bytes from 202.193.89.203: icmp_seq=39 ttl=64 time=0.198 ms
64 bytes from 202.193.89.203: icmp_seq=40 ttl=64 time=0.093 ms
^C
--- 202.193.89.203 ping statistics ---
40 packets transmitted, 15 received, 62% packet loss, time 39002ms
rtt min/avg/max/mdev = 0.082/0.452/4.823/1.168 ms
root@ubuntu:/etc/network# ping 202.193.89.254
PING 202.193.89.254 (202.193.89.254) 56(84) bytes of data.
64 bytes from 202.193.89.254: icmp_seq=6 ttl=64 time=1.52 ms
64 bytes from 202.193.89.254: icmp_seq=7 ttl=64 time=2.93 ms
64 bytes from 202.193.89.254: icmp_seq=8 ttl=64 time=2.10 ms
^C
--- 202.193.89.254 ping statistics ---
8 packets transmitted, 3 received, 62% packet loss, time 7003ms
rtt min/avg/max/mdev = 1.521/2.187/2.933/0.579 ms
root@ubuntu:/etc/network#
