The sys admin’s daily grind: WebCalendar
BANNING BRUTES
Users log on to services such as SSH, ftp, SASL, POP3, IMAP, Apache htaccess, and many more using their names and passwords. These popular access mechanisms are a potential target for brute-force attacks. An attentive bouncer will keep dictionary attacks at bay.
When users are allowed to choose passwords of their own volition, they often choose something fairly weak, like the name of a friend or pet. This predictable human behavior is something that the bad guys relish.
All an attacker needs to do is set up a loop of login attempts that references a dictionary list of passwords. After all, chances are very slight that the user has set up a password like 4G&dP9a! for the account under attack.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
News
-
Lenovo Now Offering Ubuntu 20.04 as an Option
Lenovo is making good on its promise to support Linux as a pre-install option.
-
Linux Deepin 20 Released
One of the most beautiful Linux distributions on the market has been refreshed.
-
A New Version of Zorin OS is Now Available
Fan-favorite, Zorin OS 15.3 is officially available.
-
Lenovo Now Offering Fedora Linux as an Option
Lenovo is making good on their Linux promise by adding Fedora into the mix.
-
System76 Launches new High-End Laptop
System76 has unleashed a beast of a mobile workstation.
-
Mozilla Lays Off Staff, Receives More Cash
In a restructuring move, Mozilla lays off 250 employees, but then inks large deal with Google.
-
LibreOffice 7 Now Available
The LibreOffice 7 office suite is now available with important compatibility improvements.
-
Microsoft Brings procmon to Linux
The creators of Windows have brought the sysinternals procmon tool to the open source operating system.
-
New KDE Slimbook Available
The makers of the KDE Slimbook have released a Ryzen-4000 powered laptop.
-
PinePhone Now Offers a Convergence Package
The makers of the Linux PinePhone are now offering a model that makes desktop/mobile convergence a reality.