Bandit Level 31 → Level 32

解密

bandit31@bandit:~$ mktemp -d
/tmp/tmp.UHFbV1v7DX
bandit31@bandit:~$ cd /tmp/tmp.UHFbV1v7DX
bandit31@bandit:/tmp/tmp.UHFbV1v7DX$ git clone ssh://bandit31-git@localhost/home/bandit31-git/repo
Cloning into 'repo'...
Could not create directory '/home/bandit31/.ssh'.
The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is SHA256:98UL0ZWr85496EtCRkKlo20X3OPnyPSB5tB5RPbhczc.
Are you sure you want to continue connecting (yes/no)? yes
Failed to add the host to the list of known hosts (/home/bandit31/.ssh/known_hosts).
This is a OverTheWire game server. More information on http://www.overthewire.org/wargames

bandit31-git@localhost's password:
remote: Counting objects: 4, done.
remote: Compressing objects: 100% (3/3), done.
remote: Total 4 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (4/4), done.
bandit31@bandit:/tmp/tmp.UHFbV1v7DX$ cd repo/
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ ls
README.md
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ cat README.md
This time your task is to push a file to the remote repository.

Details:
    File name: key.txt
    Content: 'May I come in?'
    Branch: master

bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ echo 'May I come in?' > key.txt
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ git add -A
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
nothing to commit, working tree clean
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ cat .gitignore
*.txt
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ :>.gitignore
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        modified:   .gitignore

Untracked files:
  (use "git add <file>..." to include in what will be committed)

        key.txt

no changes added to commit (use "git add" and/or "git commit -a")
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ git add -A
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ git commit -m 'Try to resolve it.'
[master e515574] Try to resolve it.
 2 files changed, 1 insertion(+), 1 deletion(-)
 create mode 100644 key.txt
bandit31@bandit:/tmp/tmp.UHFbV1v7DX/repo$ git push
Could not create directory '/home/bandit31/.ssh'.
The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is SHA256:98UL0ZWr85496EtCRkKlo20X3OPnyPSB5tB5RPbhczc.
Are you sure you want to continue connecting (yes/no)? yes
Failed to add the host to the list of known hosts (/home/bandit31/.ssh/known_hosts).
This is a OverTheWire game server. More information on http://www.overthewire.org/wargames

bandit31-git@localhost's password:
Counting objects: 4, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (4/4), 339 bytes | 0 bytes/s, done.
Total 4 (delta 0), reused 0 (delta 0)
remote: ### Attempting to validate files... ####
remote:
remote: .oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.
remote:
remote: Well done! Here is the password for the next level:
remote: 56a9bf19c63d650ce78e6ec0354ee45e
remote:
remote: .oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.
remote:
To ssh://localhost/home/bandit31-git/repo
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'ssh://bandit31-git@localhost/home/bandit31-git/repo'

知识点

  1. git工具使用add将所有工作区改动存储到暂存区；
  2. commit命令将暂存区内容存储到索引区；
  3. push命令将本地差异内容提交到远端；
  4. 这里有一个.gitignore文件，用于正则匹配不被git察觉到文件；