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Learning about CS

birkhoff BirkhoffLee

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Learning about CS
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@BirkhoffLee
BirkhoffLee / test-ntp.py
Created August 27, 2022 20:31 — forked from adulau/test-ntp.py
test-ntp.py - Test a set of IP addresses for active NTP services
#!/usr/bin/env python
#
# Requirements: ntplib (easy_install ntplib)
#
# How to use it using GNU parallel (to run in //):
#
# cut -f1 -d";" ntp-monlist-servers.csv | parallel "python test-ntp.py --ip {1}"
#
# Software is free software released under the "Modified BSD license"
#
@BirkhoffLee
BirkhoffLee / pkexec_block.stp
Last active January 27, 2022 04:08
Mitigate CVE-2021-4034 on CentOS 8 with Ansible
probe process("/usr/bin/pkexec").function("main") {
if (cmdline_arg(1) == "")
raise(9);
}
@BirkhoffLee
BirkhoffLee / 📊 Weekly development breakdown
Last active June 17, 2023 00:40
Nix 15 hrs 15 mins ████████▍░░░░░░░░░░░░ 40.3%
Cheetah 10 hrs 14 mins █████▋░░░░░░░░░░░░░░░ 27.1%
PHP 3 hrs 17 mins █▊░░░░░░░░░░░░░░░░░░░ 8.7%
Other 3 hrs 11 mins █▊░░░░░░░░░░░░░░░░░░░ 8.4%
JavaScript 1 hr 18 mins ▋░░░░░░░░░░░░░░░░░░░░ 3.5%
@BirkhoffLee
BirkhoffLee / crawler.go
Created January 19, 2021 17:14
My first concurrent program with goroutine (for commemoration purposes)
// https://tour.golang.org/concurrency/10
package main
import (
"fmt"
"sync"
)
type SafeMap struct {
@BirkhoffLee
BirkhoffLee / custom-firewalld.conf
Created May 7, 2020 13:10
/etc/fail2ban/action.d/custom-firewalld.conf
[INCLUDES]
before =
[Definition]
actionstart =
actionstop =
actioncheck =
actionflush = sed -i '/<source address=/d' /etc/firewalld/zones/drop.xml
actionban = firewall-cmd --change-source=<ip> --zone=drop && firewall-cmd --change-source=<ip> --zone=drop --permanent
@BirkhoffLee
BirkhoffLee / playbook.yml
Last active April 27, 2020 03:41
Install Docker Engine on CentOS 7
become: yes
tasks:
- name: Gather the rpm package facts
package_facts:
manager: auto
- name: Check whether docker-ce is installed
set_fact:
docker_installed: true
when: "'docker-ce' in ansible_facts.packages"
@BirkhoffLee
BirkhoffLee / pgp.pub
Created January 12, 2020 23:39
Birkhoff Lee's PGP key
-----BEGIN PGP PUBLIC KEY BLOCK-----
mQINBF4beKUBEADaDr1y6DY43tdUk6Ak5++au3Pwbwh+PRjn/b1u6IfXb9hVw1yq1YWFG/L1
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y+8fG9sVVp7Gs/7Yt/g08MEG9m0yBdDpwnFXMX+oqBmzyrzEvthxAztd9LT94mjaQrJCoOfo
vOOF5g3Z0S4xLOVr7JZXulHHqrNP+KVdmSoX7ESjgB8mv0tWZkR96B/z5MJahikPthVTTH+1
4UNU/h72jKimjPbd0NQ8v/pwqOGlipWxG1jAE43cUZlRv3hmDtGJynCBVkVid9yibp1nmoMr
@BirkhoffLee
BirkhoffLee / README.md
Last active March 31, 2022 16:14
zer0zero. CS: GO configuration files

zer0zero. CS: GO configuration files

This configuration features:

  • Pro player settings. These are based on former Cloud9 player Shroud's config.
  • Human-readable explanations for every line of commands
  • Gameplay optimizations in technical aspects
    • Minimize shifting when firing the Weapon
    • Disable unnecessary video/audio effects
  • Useful shortcuts:
  • Jump throw: j
@BirkhoffLee
BirkhoffLee / gist:7a2896accf597f5b8d3fde5a37681b86
Created December 10, 2019 16:09
Install sharkdp/bat on CentOS 8
#!/bin/sh
# install rustc (comes with cargo)
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/env
yum install llvm
cargo install bat
@BirkhoffLee
BirkhoffLee / gist:b8069b9e689e24d1147863c222a7edf4
Created November 23, 2019 03:45 — forked from jimbojsb/gist:1630790
Code highlighting for Keynote presentations

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2: