[RACCOON CITY] Operation RCity2

Index

1. Problem information

2. Problem solving

3. Review

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[Problem information]

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[Problem solving]

1. I accessed the server by inserting the contents of the flag file of Operation RCity1 problem with a password.

 

 

2. I used the ls command to see which files or directories exist in the current path. There was nothing in it. So I used the -a option to list all files and directories, including hidden files. There were four hidden files.

 

 

3. Among hidden files, the ...catthisfile.txt file was very suspicious. That's like saying "Hey check the content of this file usi

ng cat command". Therefore I checked the content of this file. 

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[Review]

The ls command has a number of options. You can see a description of the -a option as well. It says, "do not ignore entries starting with .". Most hidden files are files that begin with '.'. That means this option will also include the hidden files.