Sergey Vilgelm SVilgelm

I hereby claim:

I am SVilgelm on github.
I am svilgelm (https://keybase.io/svilgelm) on keybase.
I have a public key whose fingerprint is C08A 28D0 D765 525F E8B6 81B4 08D0 E2FF 7788 87E6

To claim this, I am signing this object:

Old code

exec_cmd('ping {ip}'.format(ip=ip))

Rewritten code

exec_cmd(format_cmd('ping {ip}', ip=ip))

Examples

format_cmd('ping {ip}', ip="$(rm -rf /)")
$ ping '$(rm -rf /)'
ping: cannot resolve $(rm -rf /): Unknown host

	package spec

	import (
	"encoding/json"

	"gopkg.in/yaml.v3"
	)

	// SingleOrArray holds list or single value
	type SingleOrArray[T any] []T

	// https://www.joeshaw.org/dont-defer-close-on-writable-files/
	func helloNotes() error {
	f, err := os.Create("/home/joeshaw/notes.txt")
	if err != nil {
	return err
	}
	defer f.Close()

	if err = io.WriteString(f, "hello world"); err != nil {
	return err

	#!/bin/bash

	function get_ids {
	echo `$@ --fields=id \| tail -n+4 \| head -n-1 \| awk '{ print $2 }'`
	}

	function get_body {
	echo `$@ \| tail -n+4 \| head -n-1`
	}

	#/etc/rc.local

	ipset create black_ips hash:ip
	iptables -A INPUT -m set --match-set black_ips src -j DROP
	grep "Failed password for" /var/log/auth.log \| grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' \| sort \| uniq -c \| awk '$1 > 5 { print $2}' \| xargs -I{} ipset add black_ips {}

	#!/usr/bin/env python2

	from email import header
	from email.mime import audio
	from email.mime import application
	from email.mime import image
	from email.mime import multipart
	from email.mime import text
	import logging
	import mimetypes

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

	Here is a quick tutorial to set up a basic PPTP VPN server on Ubuntu 12.04.

	Install Necessary Packages
	$ aptitude install ppp pptpd

	Configure DNS Servers to Use When Clients Connect to this PPTP Server
	$ nano /etc/ppp/pptpd-options

	Modify OR Add the following lines in end
	ms-dns 8.8.8.8