# Linux command ### 內網滲透 ``` brew install ngrok #or snap install ngrok ngrok config add-authtoken 2KQDERnnUjddPsWNMRhr3vsUeR1_3akBvNWQbgAMKNY8mH9ft ngrok http <port> ``` ### Add iptable rule ``` sudo iptables -A INPUT -p tcp --dport 8888 -j ACCEPT ``` ``` sudo iptables -A INPUT -p tcp --dport 8888:8890 -s 140.116.0.0/16 -j ACCEPT ``` ### start ssh ``` sudo apt install openssh-server systemctl enable ssh.service sudo systemctl start sshd.service ``` ### change website contents (Developer Mode) ``` document.designMode='on' ``` ### bits/stdc++.h path on mac ``` /Library/Developer/CommandLineTools/SDKs/MacOSX[MaxOS Version].sdk/usr/include/c++/v1/bits ``` or ``` /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/bits ``` :::spoiler stdc++.h ``` #ifndef _GLIBCXX_NO_ASSERT #include <cassert> #endif #include <cctype> #include <cerrno> #include <cfloat> #include <ciso646> #include <climits> #include <clocale> #include <cmath> #include <csetjmp> #include <csignal> #include <cstdarg> #include <cstddef> #include <cstdio> #include <cstdlib> #include <cstring> #include <ctime> #if __cplusplus >= 201103L #include <ccomplex> #include <cfenv> #include <cinttypes> #include <cstdbool> #include <cstdint> #include <ctgmath> #include <cwchar> #include <cwctype> #endif // C++ #include <algorithm> #include <bitset> #include <complex> #include <deque> #include <exception> #include <fstream> #include <functional> #include <iomanip> #include <ios> #include <iosfwd> #include <iostream> #include <istream> #include <iterator> #include <limits> #include <list> #include <locale> #include <map> #include <memory> #include <new> #include <numeric> #include <ostream> #include <queue> #include <set> #include <sstream> #include <stack> #include <stdexcept> #include <streambuf> #include <string> #include <typeinfo> #include <utility> #include <valarray> #include <vector> #if __cplusplus >= 201103L #include <array> #include <atomic> #include <chrono> #include <condition_variable> #include <forward_list> #include <future> #include <initializer_list> #include <mutex> #include <random> #include <ratio> #include <regex> #include <scoped_allocator> #include <system_error> #include <thread> #include <tuple> #include <typeindex> #include <type_traits> #include <unordered_map> #include <unordered_set> #endif ``` ::: ### share your terminal ``` curl -sSf https://sshx.io/get | sh && sshx ``` ### Enable SSH Service ``` sudo apt install openssh-server sudo systemctl enable ssh sudo ufw allow ssh ``` ### Execute one-time commands "at" a specified time ``` sudo at 14:50 2024-02-04 [command] Ctrl+D ``` ### synchronize time to Taiwan time zone ``` sudo timedatectl set-timezone Asia/Taipei ``` ### Remove all python packages ``` pip freeze | xargs pip uninstall -y ``` ### change python version ``` ls /usr/bin/python3*

 sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1 sudo update-alternatives --remove python3 /usr/bin/python3.9 sudo update-alternatives --config python3 ``` ### Using Pyenv to change python version ``` pyenv install 3.10.6 # install a specific Python version pyenv local 3.10.6 # set a specific Python version in the current directory pyenv versions # show installed Python versions pyenv install --list # show all available Python versions for installation ``` ## Install speedtest ``` pip install speedtest-cli speedtest # or pip install speedtest-cli --user ``` ## Trigger Github Action with no changes ``` git commit --allow-empty -m 'trigger new CI check' ``` ## get requirements.txt with current version ``` pipreqs . --force --savepath temp_requirements.txt rm requirements.txt while read line; do pkg=$(echo $line | cut -d'=' -f1) version=$(pip show $pkg 2>/dev/null | grep Version | head -1 | awk '{print $2}' ) echo "found $pkg $version" if [ ! -z "$version" ]; then echo "$pkg==$version" >> requirements.txt fi done < temp_requirements.txt rm temp_requirements.txt ``` ## Open MCP Inspector ``` npx @modelcontextprotocol/inspector ```