## 윈도우 계정 관리

```shell
net user
net localgroup administrators
net localgroup users
```

```
C:\Users\student\Downloads\cmder
λ net users

\\M50423에 대한 사용자 계정

-------------------------------------------------------------------------------
Administrator            Guest                    student
명령을 잘 실행했습니다.


C:\Users\student\Downloads\cmder
λ net localgroup administrators
별칭     administrators
설명     컴퓨터/도메인에 모든 액세스 권한을 가진 관리자

구성원

-------------------------------------------------------------------------------
Administrator
student
명령을 잘 실행했습니다.


C:\Users\student\Downloads\cmder
λ net localgroup users
별칭     users
설명     Users는 시스템 수준 변경을 수행할 수 없으며 대부분의 응용 프로그램을 실행할 수 있습니다.

구성원

-------------------------------------------------------------------------------
NT AUTHORITY\Authenticated Users
NT AUTHORITY\INTERACTIVE
명령을 잘 실행했습니다.
```


## vmware

-https://www.vmware.com/kr/products/workstation-player/workstation-player-evaluation.html


## 칸아카데미 

- 암호학

## 보안

- PlayFab
- AES

## 치환 암호

https://math.bab2min.pe.kr/substt

```
PF SQ WPOZ ESXF DS P CZZEG USSI DS ECHFM. PA YZ AUIPAYZE YZPKHIG HFDS DYZ XPDZC, YZ WCJAYZE P GSJFN TCSN HFDS DYZ OJE. DYZ SIE TCSN ASSF OHAAZE DYZ IHDDIZ SFZ PFE PAMZE YHA LCSDYZCA PFE AHADZCA XYPD YPE LZWSOZ ST YHO. P NCZPD LHN OSFADZC, APHE SFZ ST DYZO, ADZUUZE SF IHDDIZ LCSDYZC XHDY SFZ ST YHA YJNZ TZZD! LHN, XPA YZ! APHE DYZ SIE TCSN, UJTTHFN YZCAZIT JU. XPA YZ PA LHN PA DYHA? SY, OJWY LHNNZC! DYZG WCHZE. DYZ TCSN UJTTZE JU ADHII OSCZ. YZ WSJIE FSD YPKZ LZZF LHNNZC DYPF DYHA, AYZ APHE. LJD DYZ IHDDIZ TCSNA PII EZWIPCZE DYPD DYZ OSFADZC XPA OJWY, OJWY LHNNZC PFE DYZ SIE TCSN MZUD UJTTHFN YZCAZIT SJD OSCZ PFE OSCZ JFDHI, PII PD SFWZ, AYZ LJCAD.
```

https://quipqiup.com/

```
AN OX CAME DOWN TO A REEDY POOL TO DRINK. AS HE SPLASHED HEAVILY INTO THE WATER, HE CRUSHED A YOUNG FROG INTO THE MUD. THE OLD FROG SOON MISSED THE LITTLE ONE AND ASKED HIS BROTHERS AND SISTERS WHAT HAD BECOME OF HIM. A GREAT BIG MONSTER, SAID ONE OF THEM, STEPPED ON LITTLE BROTHER WITH ONE OF HIS HUGE FEET! BIG, WAS HE! SAID THE OLD FROG, PUFFING HERSELF UP. WAS HE AS BIG AS THIS? OH, MUCH BIGGER! THEY CRIED. THE FROG PUFFED UP STILL MORE. HE COULD NOT HAVE BEEN BIGGER THAN THIS, SHE SAID. BUT THE LITTLE FROGS ALL DECLARED THAT THE MONSTER WAS MUCH, MUCH BIGGER AND THE OLD FROG KEPT PUFFING HERSELF OUT MORE AND MORE UNTIL, ALL AT ONCE, SHE BURST.
```