Skip to main content

Ubuntu:: root password

I could not understand the policy of password for root user when I start to use Ubuntu linux.
I didn't know root password on Ubuntu Linux. Actually, no one know about it...... because it is null.

The policy of root password is that if root has no password then no one can attack it.
However, some one wont to use root as other distribution of linux. You can make password for root on Ubuntu Linux.
But, it makes risks for attacked by malicious user. Be careful to make your root password. If you want to make password for root then you should check your root password is safty or not by some kind of password checking site.

# sudo passwd root
enter password for current user (if your account has authority for using sudo command)
enter new password for root user
enter same password for root user

Comments

Post a Comment

Popular posts from this blog

gDisk 0.6.1

Today, I try to use new gDisk version 0.6.1. Before version, I cannot see what files are on the server side. But current version I could do it. I think it is better than before version and it began to useful for backup software. But it has one problem.... When I uploaded more than 10 files at same time, it was clash down. I try to do it at 2-3 times but result was same..... I think it is one of the bag or the documents said about it (Actuary I read no document about it for this version)
Post a Comment
Read more

Bicycle insurance in japan

Long time, I was considering about bicycle insurance. Many japanese are not consider about insurance for bicycle in japan. Because japan is weak country for insurance. Many people considered about when they are attacked by car. They didn't have an idea what they may be going to be individual at fault. However, road bikes are faster than my MTB. And, many of city bikes do not turn on a head light after sunset. The old person has also no idea what the bicycles can ride so fast as 50cc motar bike. Then they easy enter in front of bicycles. Such kind of accident is not few in japan. And, the worst case of such accident, the road bike rider needed to pay 40 millions yen to attacked person. Bicycle ride's bad manner have begun to social issues. Some bicycle riders do not follow the traffic lights or traffic signs. In such background, sometime, I have risks what I will be attacked by such bicycle riders when I ride my MTB. However, as above reason, many riders have no insurance ...
11 comments
Read more

Pocket WiFi + Nexus One

Last a month, I used PocketWiFi with B-Mobile SIM + Google Nexus One with Softbank mobile SIM. I used this combination for a month because the softbank mobile had problem for 3G data communication due to the wrong parameter written by staff. The communication speed was too slow. So, I try to use B-Mobile for data communication. I wanted to use b-mobile but I didn't want to change the phone plan from softbank. Then, I try to use Pocket WiFi. The largest merit of using PocketWiFi is that we can use 3G network at most 6 devices at a same time. When we are starbacks, some coffee stand, or some other places we can use 3G network through the wifi. The speed was enough for web browser. However, for the data communicating through the android application, some of them didn't work. And, the buttery power also had problem. I need to charge the buttery every 1-2 days, even if i didn't use it. And, I had some situation that I wanted to use it however I forgot to bring it with me or to c...
4 comments
Read more