eliminate the need to enter your passphrase everytime (Web server version)
eliminate the need to enter your passphrase everytime you log in to a remote system, you have to talkKDE (or GNOME) into asking you for the passphrasewhen you first log in to your local desktop. After thekey is unlocked, it s ready for use (and reuse) untilyou log out of your local desktop. If you use KDE, the easiest way to set this up is withKonqueror. Here s how: 1.Open your Konqueror browser and surf to thefollowing directory: ~/.kde/Autostart2.Right-click on the browser and choose CreateNew.Link to Application from the pop-upmenu. 3.Name your link (Passphrase) and click theExecute tab. 4.In the Command field, enter the following command: /usr/bin/ssh-add5.Click OK. A new Autostart icon appears in the Konquerorwindow. The next time you log in to KDE, you llbe prompted for your passphrase. If you re a fan of GNOME, follow along to edit yourAutostart folder: 1.Open the Main Menu and choose Preferences. More Preferences.Sessions. 2.Click the Sessions icon to open the Sessions dialog. 3.Click the Startup Programs tab and thenclickAdd. The Add Startup Program dialog appears. 4.Type /usr/bin/ssh-addin the StartupCommand field and click OK. Logging In with SSH and Key AuthenticationWhen you log in to an SSH server using public-keyauthentication, you re greeted with a remote com- mand line. The commands that you enter are exe- cuted by the SSH server until you log out. If you wantto use graphical environments, you can access those, too. We give you the details in the following sections. Starting from the command lineTo use your key authentication to log in to a machinewith SSH, follow these steps: 1.At the command line, type ssh bastilleandpress Enter. You re prompted for your passphrase (the oneyou entered when you generated your key set). 2.Enter the passphrase. You re logged in! A few quick words about fingerprintsThe first time you log in with SSH, your local system addsthe server s public key to its list of known computers andissues a warning similar to the following: The authenticity of host `192.168.0.135 can t be established. RSA key fingerprint isb4:2y:88:23:98:33:g1:03:ec:7b:d8:2b:b8:83: y3:f8. Are you sure you want to continue connecting (yes/no)? Type yesand press Enter to continue. In the future, if the server s public key changes, SSH willwarn you. Some nasty people intercept transmissionsand redirect logins to steal password informa- tion that will enable them to get into places40_
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