OpenSSH Public Key Authorization on Linux

To find out whether a user exists or not in a Linux machine:
*    grep username /etc/passwd
or
*    id username

To give a new user access to Linux machine:
1. Login as root user
2. Run this:
    $ /usr/sbin/adduser new_user
3. Set a new password:
    $ passwd new_user
    (and put the password when prompted)

To give them root access:
4. Edit the /etc/sudoers file
    $ vi /etc/sudoers
    User_Alias YOUR_GROUP = new_user
    YOUR_GROUP ALL=(ALL) NOPASSWD: ALL

To test whether the new_user has been granted root access, run these two commands:
    $ su new_user (user should be 'new_user' now)
    $ sudo su (user should be 'root' now)
If the conditions above met, then new_user has root access.

If the new_user want to use public/private key gen authorization:
5. Change your user to be the new_user
    $ su new_user
6. Create ~/.ssh/authorized_keys file if it doesn't exist yet
    $ mkdir ~/.ssh
    $ chmod 700 ~/.ssh
7. Insert the public key on the authorized_keys file
    $ vi ~/.ssh/authorized_keys
    (insert the public key entry)

Comments

Myth or ?

Now that my daughter hits 10 month mark, she starts to move more actively around. She doesn't quite walk yet, but she tries. Her feet don't move one in front of the other, but her whole body make a "jump" to compensate. As such, she fell and hit her head. A part of her forehead was swollen. And when we called our family, the single advice that everyone gave us was: Rub oil on it, and then rub a knife on it. This was totally the way we were brought up. I remember seeing an adult rubbing the swollen part of a child's head with knife. It works too! But it makes me wonder... Why does it work? Do we still have to do that nowadays?

Amigurumi: Single Pea and Deadly Cute Ninja

I think I was bitten by the craft bugs. Here's my next creation: the single pea (because making 3 of them in solid green is just too much for my eyes) and the deadly but cute ninja. Chris called them Peany and Ninji. Peany, Dora, Ninji, and Mushy posing together It's hard to see from this photo, but Ninji actually has a sling (in a slightly different color) around his body, and a mini ninja star. And talk about proportion... the vegetables are larger than the cat and the person. Makes you wonder, isn't it?

Amigurumi: Mario Bros Mushroom

I found out that I had a stash of acrylic yarns left (in the storage), and so I was looking around for patterns/stuff I can use them for. I ended up finding Amigurumi , and of course the pattern I wanted uses the colors of yarns I did not already have. I ended up buying another stash of acrylic yarns in different colors. Thankfully, Zellers had it on sale. In any case, my first Amigurumi project was the Mario Bros Mushroom. I found out (too late), that I was doing the red part wrong. I crocheted from the back loop only, instead of from both loop. Hence, the "head" is taller than it's supposed to be. But since I didn't realize it until after the head was completed, I decided to leave it as it was. Mushy I gave this one to Chris, just because he wanted one. This became another addition to his "work buddies", as you can see below. Chris's "Work Buddies" But bad Chris! He made Mushy to be the bad guy (I think). Chris called this scene "Revenge

Journey to the Past

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