Turniej Pokemon

john3859 · Wysłany: Czw 13:58, 31 Mar 2011 Temat postu: password”

yilai:
[link widoczny dla zalogowanych]

are sure to be heard this weekend

first, and then, using his/her access to the operating system [link widoczny dla zalogowanych], try to get a privileged access cracking the root password. Good password policy, and good passwords are absolutely critical to the security on any computer. Some common mistakes when selecting a password:A- use “password” as password.B- use the name of the computer.C- a well-know name from science, sports or politics.D- reference to movies.E- anything that is part of the user web site.F– references associated with the account.The latest version of Linux offer shadowed passwords. If a cracker can see an encrypted password, crack it would a simple task. So, instead of storing the password in the passwd file, they are now stored in the shadow file which is readable only for root. Before a hacker can crack a password he needs to figure out an account name. So [link widoczny dla zalogowanych], simple accounts names must be avoided as well. Another security measure is to apply a “no login” to the account in the passwd file. This must be done to all the accounts that don’t need to log in to the system. Examples are: apache [link widoczny dla zalogowanych], mysql, ftp and other.Limit which terminals root may log in from. If the root account is allowed to log in only in certain terminals that are considered secure, it will be almost impossible