Inbound rules allow you to filter all incoming connections. By default, all uninvited incoming connections are turned away. Creating an inbound rule effectively allows you to create a "hole" in the firewall for certain types of connection to get through, as needed by particular programs.
Sometimes a repository contains digitally signed packages. Signing is a method of ensuring packages haven't been tampered with, or forged. The programmer stamps each package with an ID that only she can create. This is done using a cryptographic key, the public component of which is offered for download and must be installed by end users.
You can open MMC consoles by selecting them from the Administrative Tools folder in the Start menu or by double-clicking their icons in Explorer. You also can start consoles using a command prompt.
Microsoft Exchange Server unites users with knowledge anytime, anywhere. Exchange is designed to meet the messaging and collaboration needs of small organizations, large distributed enterprises, and everything in between.
Member Servers or just standalone servers can be promoted to domain controller. The Active Directory Wizard can help you install and configure components and enables you to provide directory service to network computers and users.
A server on a network - standalone or member - can function in a number of roles. As the needs of your computing environment change, you may want to change the role of a server. By using the Server Manager and the Add Roles Wizard, you can install Active Directory Domain Servers to promote a member server to a domain controller, or you can install individual roles or combinations of various roles, such as DHCP, WINS, and DNS.
Some apps have a "fullscreen" mode that will cause the title bar, GNOME menus and GNOME panel to temporarily disappear. This can be useful for maximizing screen real estate, or just working without backgrounddistractions. If the option is available it will show-up on the View menu.
Ubuntu offers the handy User Switcher applet at the top right of the desktop to switch between the desktop of two or more users. This is cleverer than it might first seem.
This is an oldie but worth mentioning in case you don't know. To kill the GUI, for whatever reason, such as a crash, hit Ctrl + Alt + Backspace. There's no warning dialog boxes when you do this - any open applications will be terminated, and data lost. You'll be returned to the GNOME
login screen, where you can login afresh.
If you're trying to fix a problem you might want to capture the output of a command for reproduction on a website forum, along with the command you typed to get the results. If you're working in a terminal window you can cut and paste, but what if you're working at a virtual console?
Sometimes if a USB memory stick or memory card stops working correctly, the best plan is to reformat it. To do this under Ubuntu, follow the steps below. Note that the instructions are extremely thorough - first the partition on the memory stick is deleted, then a new one is
created and subsequently formatted.
Wicd is an excellent swap-in replacement for NetworkManager. NetworkManager is the system software that sits in the notification area and handles network connections.
If you want to stop seeing the username/password prompt when you start Ubuntu, click System > Administration > Login Window. Then click the Security tab, and put a check in Enable Automatic Login.
Windows Server 2008 does not come out of the box with Windows Sidebar from Vista. It is possible to use the Windows Sidebar provided in Vista on Windows Server 2008 with a few tweaks outlined here.
To install a shared network printer in Ubuntu 8.10, such as one connected to another computer in your home or office, click System > Administration > Printing and click the NEW button in the toolbar (click NEW PRINTER if using Ubuntu 8.04). Then select the type of network printer you'd like to connect to across the network.