实现ssh无密码别名登录

通过config管理ssh会话，实现使用别名登录。通过使用密钥，实现无需密码登录。在管理多个服务器时很方便。

nvm管理node版本

brew install nvm

添加以下内容到~/.zshrc

export NVM_DIR="$HOME/.nvm"
[ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"  # This loads nvm
[ -s "/usr/local/opt/nvm/etc/bash_completion.d/nvm" ] && . "/usr/local/opt/nvm/etc/bash_completion.d/nvm"  # This loads nvm bash_completion

source ~/.zshrc
nvm install --lts

Ghidra -> Search -> For Strings

看到quickjs, google that.

编译 运行 quickjs

$ git clone https://github.com/horhof/quickjs.git -b 20200119 --depth 1
cd quickjs
$ make
$ echo "console.log('hello')" > ctf.js
$ ./qjsc -e -o ctf.c ctf.js
$ cc ctf.c libquickjs.lto.a -o ctf
$ ./ctf
hello

check ctf.c

Stabs and DWARF symbols

brew install binutils

gobjdump --stabs --dwarf

Option 1: ssh-agent

You can use ssh-agent to temporarily authorize your private key.

For example:

$ ssh-agent sh -c ‘ssh-add ~/.ssh/id_rsa; git fetch user@host’

Option 2: GIT_SSH_COMMAND

Pass the ssh arguments by using the GIT_SSH_COMMAND environment variable (Git 2.3.0+).

For example:

$ GIT_SSH_COMMAND=’ssh -i ~/.ssh/id_rsa -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no’
git clone user@host

You can type this all on one line — ignore $ and leave out the .
Option 3: GIT_SSH

Pass the ssh arguments by using the GIT_SSH environment variable to specify alternate ssh binary.

For example:

$ echo ‘ssh -i ~/.ssh/id_rsa -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no $*’ > ssh
$ chmod +x ssh
$ GIT_TRACE=1 GIT_SSH=’./ssh’ git clone user@host

Note: The above lines are shell (terminal) command lines which you should paste into your terminal. They will create a file named ssh, make it executable, and (indirectly) execute it.

Note: GIT_SSH is available since v0.99.4 (2005).
Option 4: ~/.ssh/config

Use the ~/.ssh/config file as suggested in other answers in order to specify the location of your private key, e.g.

Host github.com
User git
Hostname github.com
IdentityFile ~/.ssh/id_rsa

ssh-keygen -p -N “” -m pem -f /path/to/key