TLBB Cài đặt mạng cho Ubuntu Unknown rwxr-xr-x 7:39:00 PM

Title	TLBB Cài đặt mạng cho Ubuntu
Permission	rw-r--r--
Author	Unknown
Date and Time	7:39:00 PM
Category
Share

Mở tệp interfaces ra để chỉnh sửa:

• sudo nano /etc/network/interfaces

Thêm vào các dòng cấu hình:

auto eth0 #thường là eth0 có thể là eth1, eth2

iface eth0 inet static

address 192.168.1.x #địa chỉ ip bạn chọn

netmask 255.255.255.0

gateway 192.168.1.1

Sau đó lưu lại và khởi động lại mạng:

• sudo /etc/init.d/networking restart

Sửa DNS:

Mở tệp resolv.conf:

• sudo gedit /etc/resolv.conf

Thêm DNS của bạn vào:

nameserver 8.8.8.8

• echo "nameserver 8.8.8.8" | sudo tee /etc/resolv.conf > /dev/null

Nếu DNS file tự động reconfig thì làm như sau:

• sudo nano /etc/resolvconf/resolv.conf.d/head
  

(ignore the scary warning. /etc/resolv.conf is autogenerated, so the warning is there so it will get put in /etc/resolv.conf when /etc/resolv.conf is generated.) To the end of the file, add

nameserver <ip_of_nameserver>

Press Ctrl x and answer yes to saving the file. To finish up, regenerate /etc/resolv.conf so the changes are applied right now:

• sudo resolvconf -u

Changing the hostname or computer name in ubuntu

Edit /etc/hostname and change to the new value, you can use nano instead of vi, but remember that real men prefer vi.

• vi /etc/hostname

Edit /etc/hosts and change the old 127.0.1.1 line to your new hostname (if you dont do this, you wont be able to use sudo anymore. If you hav e already done it, press ESC on the grub menu, choose recovery, and edit your host file to the correct settings)

127.0.0.1   localhost
127.0.1.1   ubuntu.local ubuntu   # change to your new hostname/fqdn

Now after a reboot, your hostname will be the new one you chose. To change without a reboot, you can just use hostname.sh after you edit /etc/hostname:

• sudo /etc/init.d/hostname.sh start