redbeard brianredbeard

## sshpub-to-rsa
#!/usr/bin/env python

# with help and inspiration from
#  * ASN1_generate_nconf(3) (specifically the SubjectPublicKeyInfo structure)
#  * http://www.sysmic.org/dotclear/index.php?post/2010/03/24/Convert-keys-betweens-GnuPG%2C-OpenSsh-and-OpenSSL
#  * http://blog.oddbit.com/2011/05/converting-openssh-public-keys.html

import sys
import base64
import struct

## latency.markdown

      
              2 files
            
          
              742 forks
            
          
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              4389 stars
            
          
                hellerbarde
                / latency.markdown
            
            
              Created
              May 31, 2012 13:16
                — forked from jboner/latency.txt
            
              
                Latency numbers every programmer should know
              
          
    Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

  
## postgres_queries_and_commands.sql
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'

## gist:9292589
BIOS Setup
----------

1) Boot into the BIOS setup utility (press F2 or DEL) and open Advanced > Serial Port Console Redirection.
2) Disable COM1 and EMS console redirection and enable SOL redirection.
3) Set the SOL console redirection settings as follows:

       Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
          Advanced
/----------------------------------------------------+-------------------------\

## gist:907c4a62758c068fd464
"""
Example of making a request to JIRA as a trusted application.
In this example, we create a new issue as an arbitrary user.

More information on this technique at:
https://answers.atlassian.com/questions/247528/how-do-you-impersonate-a-user-with-jira-oauth
"""

import oauth2
import time

## ttf2woff2.md

      
              1 file
            
          
              33 forks
            
          
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              409 stars
            
          
                sergejmueller
                / ttf2woff2.md
            
            
              Last active
              March 9, 2024 13:37
            
              
                WOFF 2.0 – Learn more about the next generation Web Font Format and convert TTF to WOFF2
              
          
    Prolog

Google Chrome Developers says:

The new WOFF 2.0 Web Font compression format offers a 30% average gain over WOFF 1.0 (up to 50%+ in some cases). WOFF 2.0 is available since Chrome 36 and Opera 23.

Some examples of file size differences: WOFF vs. WOFF2
TTF to WOFF2 converting


http://www.fontsquirrel.com/tools/webfont-generator


## gist:52ecc9f18efb32c68d18

      
              1 file
            
          
              40 forks
            
          
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                plepe
                / gist:52ecc9f18efb32c68d18
            
            
              Last active
              October 23, 2023 08:50
            
              
                MDADM and LVM cheat sheet
              
          
    mdadm

Glossary:

md: multiple devices


command
description


cat /proc/mdstat
show status of all raids


mdadm --detail /dev/md0
detailed status of raid md0


## Sony Bravia 2014.xml
<?xml version="1.0" encoding="utf-8"?>
<Client name="Sony Bravia 2014">
  <Identification>
    <Header name="X-AV-Client-Info" regex=".*KDL-\d{2}[WR][5689]\d{2}B.*" />
    <DeviceDescription>
      <Manufacturer substring="Sony" />
      <FriendlyName regex="KDL-\d{2}[WR][5689]\d{2}B.*" />
    </DeviceDescription>
  </Identification>
  <DeviceDescription>

## compiling_building_c_cpp_notes.md

      
              1 file
            
          
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              324 stars
            
          
                gubatron
                / compiling_building_c_cpp_notes.md
            
            
              Last active
              April 18, 2024 07:58
            
              
                Things to remember when compiling and linking C/C++ programs
              
          
    Things to remember when compiling/linking C/C++ software

by Angel Leon. March 17, 2015;
Last update on December 14, 2023
Updated on February 27, 2023
Updated August 29, 2019.

  
## tmux-all-panes.sh
#!/bin/bash

# Runs the specified command (provided by the first argument) in all tmux panes
# in every window.  If an application is currently running in a given pane
# (e.g., vim), it is suspended and then resumed so the command can be run.
all-panes()
{
  all-panes-bg_ "$1" &
}
	#!/usr/bin/env python

	# with help and inspiration from
	# * ASN1_generate_nconf(3) (specifically the SubjectPublicKeyInfo structure)
	# * http://www.sysmic.org/dotclear/index.php?post/2010/03/24/Convert-keys-betweens-GnuPG%2C-OpenSsh-and-OpenSSL
	# * http://blog.oddbit.com/2011/05/converting-openssh-public-keys.html

	import sys
	import base64
	import struct
	-- show running queries (pre 9.2)
	SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(clock_timestamp(), query_start), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
	BIOS Setup
	----------

	1) Boot into the BIOS setup utility (press F2 or DEL) and open Advanced > Serial Port Console Redirection.
	2) Disable COM1 and EMS console redirection and enable SOL redirection.
	3) Set the SOL console redirection settings as follows:

	Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
	Advanced
	/----------------------------------------------------+-------------------------\
	"""
	Example of making a request to JIRA as a trusted application.
	In this example, we create a new issue as an arbitrary user.

	More information on this technique at:
	https://answers.atlassian.com/questions/247528/how-do-you-impersonate-a-user-with-jira-oauth
	"""

	import oauth2
	import time
command	description
`cat /proc/mdstat`	show status of all raids
`mdadm --detail /dev/md0`	detailed status of raid md0
	<?xml version="1.0" encoding="utf-8"?>
	<Client name="Sony Bravia 2014">
	<Identification>
	<Header name="X-AV-Client-Info" regex=".KDL-\d{2}[WR][5689]\d{2}B." />
	<DeviceDescription>
	<Manufacturer substring="Sony" />
	<FriendlyName regex="KDL-\d{2}[WR][5689]\d{2}B.*" />
	</DeviceDescription>
	</Identification>
	<DeviceDescription>
	#!/bin/bash

	# Runs the specified command (provided by the first argument) in all tmux panes
	# in every window. If an application is currently running in a given pane
	# (e.g., vim), it is suspended and then resumed so the command can be run.
	all-panes()
	{
	all-panes-bg_ "$1" &
	}