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echo <<EOF > /etc/systemd/system/vpn-bypass.service
[Unit]
Description=VPN Bypass for SSH and UDP ports 60000-61000
After=network.target

[Service]
Type=oneshot
# ExecStart=/bin/sh -c 'grep -q "200 vpnbypass" /etc/iproute2/rt_tables || echo "200 vpnbypass" >> /etc/iproute2/rt_tables'
# ExecStart=/bin/sh -c 'ip rule del fwmark 0xca6c lookup 200 priority 100 2>/dev/null || true'
# ExecStart=/bin/sh -c 'ip route add unreachable default metric 4278198272 table 200 2>/dev/null || true'

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Attach to PID with GDB

gdb -p <pid>

Interactively inspect the running process

To interactively debug a running python process, you can use gdb to execute pdb:

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#!/usr/bin/env python3

import sys
import asyncio

from bbot.scanner import Scanner

try:
    file = sys.argv[-1]
except KeyError:

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#!/usr/bin/env python3

import sys
import string
import random
import dns.resolver
import threading
import tldextract
import concurrent.futures

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# top subdomain append/prepends
# derived from top 1 million subdomains: https://github.com/bitquark/dnspop

401055	{}
8350	{}2
8035	{}1
4012	{}3
2766	{}4
2585	{}01
2183	{}5

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kill $(last -f /var/run/utmp | egrep -o 'mosh \[[0-9]+\]' | egrep -o '[0-9]+')

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# default tmux config
cat <<EOF > "$HOME/.tmux.conf"
set -g mouse on
set -g history-limit 50000

# List of plugins
set -g @plugin 'tmux-plugins/tmux-logging'

# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
run '~/.tmux/plugins/tpm/tpm'

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#!/usr/bin/env python3

from ipaddress import *

routes = [
    # destination       # router
    ('10.0.0.0/24',     '172.16.0.2'),
    ('0.0.0.0/0',       '172.16.0.1')
]