Step 2 of Dr. Com dial-up Internet access settings: Download The dr.com client for linux (I naturally use ubuntu) and save it to any directory. I am ~ /Download Step 2: Compile the file into the Directory: cd the directory where you downloaded the file/(here I am ~ /Download) unzip: tar xzvf drcom-1.4.8.3.tar.gz get Folder: drcom-1.4.8.3/Enter Directory: cd drcom-1.4.8.3/compile: make (if there is no error) install: sudo make install (if there is no error) okay, the following is the configuration file (/etc/drcom. conf) Step 1: Enter Dr in the configuration file. the User Name of the Com Broadband User I used is the campus network username = ******** here fill in the corresponding password = ********* this line seems to be physical nic or something, you can use the default value device = eth0. You can also enter the default value "t = 10.0.0.0/255.0.0.0", "192.168.0.0/255.255.0.0", "172.16.0.0/255.240.0.0", and "127.0.0.0/255.0.0.0 ". If you have installed a Windows system, you can run ipconfig/all to get the result (I still don't know how to get it in Linux ~ If there are multiple (DNS Server), you can enter the first (or other) dnsp = xxx. xxx. xxx. xxx, which can be the same as dnss = xxx. xxx. xxx. xxx, which is also obtained from ipconfig/all (DHCP Server) dhcp = aaa. aaa. aaa. aaa hostip = This is a Windows Dr. if the Com Login Dialog Box is not found (some versions do not exist), ask the network management center to go ~ Servip = ***. ***. ***. * ** hostport = servport = hostname = winver = winbuild = servicepack = autologout = 0. In this case, the computer should be able to access the Internet. Step 1: Start dr.com: sudo drcomd by dialing: log out of drcomc login: drcomc logout