Sudo, 2.4.18 Kernel and Webmin
topSetting up Sudo
Once installed, run visudo as root. This opens up Vi which lets you edit the sudoers file. You can see what the root has by default. Then you can add more lines for other users. eg.roger, eva, bruce ALL=(ALL) ALL
See documentation for more indepth on Sudo.
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Installing the 2.4.18 kernel
As the initial install was just using the default 2.2.20ide-pci kernel we decided to upgrade to the newer 2.4.18 kernel that is available with woody. Doing an "apt-cache search kernel |grep image" shows that there are a number of 2.4.18 kernel images available. As we have a pentiumI cpu I chose to install the kernel image that was optimised for that cpu.#apt-get install kernel-image-2.4.18-586tsc
This installed the kernel-image we want and the initrd-tools and ash package which it depends on. When the packages were being configured we were warned about adding "initrd=/initrd.img" to /etc/lilo.conf and asked if we want to stop the install. Rather than do that I just opened another terminal (Ctrl+F2), logged in and then openned lilo.conf in a text editor and added the line
initrd=/initrd.img
to the lilo.conf file, saved the file and then logged out and switched back to the installation and continued the install.
You are asked a couple of questions while lilo is being configured to which we just accepted the defaults. Once the install has finished I ran the command "lilo" and then rebooted. The machine rebooted with the new kernel. Then we had to load the module for the network card in order to get it work with the new kernel. Typed
#modconf
and then went to the network devices section and pressed enter and then chose the driver the network card we had. We found out what the was by logging into another terminal and running the lspci command which gives details for all the pci devices on the system. Also installed the apm module from the kernel base drivers section which will enable advanced power management to be used if you have append "apm=on" in your lilo.conf file.
I then halted the computer plugged it into the network and rebooted.
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Setting up Webmin
Webmin is a web-based tool for system administration on Unix systems such as linux. It provides an gui interface by way of a browser to carry out a whole range of administration tasks.
