lowitea

## subnets.md

      
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                wildme
                / subnets.md
            
            
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              October 30, 2025 20:08
            
              
                Subnets blocked in Russia or restricted by the owner
              
          
    Docker Hub

44.192.0.0/10

52.0.0.0/10

52.64.0.0/12

54.64.0.0/11

54.224.0.0/11
packages.gitlab.com

8.6.112.0/24

8.47.69.0/24

  
## fedora_post_install.md

      
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                zobayer1
                / fedora_post_install.md
            
            
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              October 30, 2025 14:04
            
              
                Fedora 36 post installation notes for software developers. Things you should do after installing your new Fedora 36 workstation.
              
          
    Fedora 36 Post Installation (For Software Developers)

Top N things you should do after installing or upgrading to your new Fedora 36 workstation.

Settings

Change Hostname


## vim_cheatsheet.txt
Файл настройки: ~/.vimrc
Можно редактировать файлы через сеть, например
:e <scp|ftp|ftps>://user@host/path/to/the/file.txt
:Ex или :e ./ - файловый менеджер

== Основы ==
hjkl                      перемещение в разные стороны
i                         режим вставки
I                         добавление в начало строки
a                         режим добавления

## deployment.yml
# Use envFrom to load Secrets and ConfigMaps into environment variables

apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: mans-not-hot
  labels:
    app: mans-not-hot
spec:
  replicas: 1

## mysqldump-ignore-multiple-tables
mysqldump -u root -p database --ignore-table=database.table1 --ignore-table=database.table2 > dump.sql

## bench.py
from __future__ import print_function
import time

def query_10k(cur):
    t = time.time()
    for _ in range(10000):
        cur.execute("SELECT 1,2,3,4,5")
        res = cur.fetchall()
        assert len(res) == 1
        assert res[0] == (1,2,3,4,5)

## vim_cheatsheet.md

      
              1 file
            
          
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                awidegreen
                / vim_cheatsheet.md
            
            
              Last active
              September 14, 2025 23:40
            
              
                Vim shortcuts
              
          
    Introduction


C-a == Ctrl-a
M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close


## latency.txt
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD
	Файл настройки: ~/.vimrc
	Можно редактировать файлы через сеть, например
	:e <scp\|ftp\|ftps>://user@host/path/to/the/file.txt
	:Ex или :e ./ - файловый менеджер

	== Основы ==
	hjkl перемещение в разные стороны
	i режим вставки
	I добавление в начало строки
	a режим добавления
	# Use envFrom to load Secrets and ConfigMaps into environment variables

	apiVersion: apps/v1beta2
	kind: Deployment
	metadata:
	name: mans-not-hot
	labels:
	app: mans-not-hot
	spec:
	replicas: 1
	from __future__ import print_function
	import time

	def query_10k(cur):
	t = time.time()
	for _ in range(10000):
	cur.execute("SELECT 1,2,3,4,5")
	res = cur.fetchall()
	assert len(res) == 1
	assert res[0] == (1,2,3,4,5)
	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD