Nola funtzionatzen dute administrazio-pribilegioek?
Zuk zeuk sortu dituzun fitxategiez gain, ordenagailuak baditu sistemak ongi funtzionatzeko behar dituen fitxategi asko. Sistema-fitxategi horiek oker aldatzen badira, eginbide batzuk hautsi egin daitezke, eta horregatik daude, hain zuzen, aldaketetatik babestuta. Azplikazio batzuk ere, sistemaren atal garrantzitsuak aldatzen dituztenez, babestuta daude.
The way that they are protected is by only allowing users with administrative privileges to change the files or use the applications. In day-to-day use, you will not need to change any system files or use these applications, so by default you do not have administrative privileges.
Sometimes you need to use these applications, so you may be able to temporarily get administrative privileges to allow you to make the changes. If an application needs administrative privileges, it will ask for your password. For example, if you want to install some new software, the software installer (package manager) will ask for your administrator password so it can add the new application to the system. Once it has finished, your administrative privileges will be taken away again.
Administrative privileges are associated with your user account. Administrator users are allowed to have these privileges while Standard users are not. Without administrative privileges you will not be able to install software. Some user accounts (for example, the “root” account) have permanent administrative privileges. You should not use administrative privileges all of the time, because you might accidentally change something you did not intend to (like delete a needed system file, for example).
Laburbilduz, administratzaile-pribilegioen bidez zure sistemaren atal garrantzitsuak aldatu ditzakezu beharrezkoa denean, baina nahi gabe egin dezazun eragozten da.
Zer esan nahi du “superuser” hitzak?
Administratzaile-pribilegioak dituzten erabiltzaileei batzuetan supererabiltzaile deritze. Horrek esan nahi du erabiltzaile horrek gainerakoek baino pribilegio gehiago dituela. Agian ikusiko duzu zenbait lekutan jendeak su eta sudo moduko gauzetaz ari dela; Horiek erabiltzen dira erabiltzaile normal bati aldi baterako “supererabiltzaile” (administrazio) pribilegioak emateko.
Zertarako dira erabilgarri administratzaile-pribilegioak?
Sisteman aldaketa garrantzitsuak egin baino lehen erabiltzaileei administratzaile-pribilegioak eskatuz, sistema nahita edo nahi gabe apurtzea eragozten da.
If you had administrative privileges all of the time, you might accidentally change an important file, or run an application which changes something important by mistake. Only getting administrative privileges temporarily, when you need them, reduces the risk of these mistakes happening.
Only certain trusted users should be allowed to have administrative privileges. This prevents other users from messing with the computer and doing things like uninstalling applications that you need, installing applications that you don’t want, or changing important files. This is useful from a security standpoint.