| #!/bin/bash | |
| # As the "bufferbloat" folks have recently re-discovered and/or more widely | |
| # publicized, congestion avoidance algorithms (such as those found in TCP) do | |
| # a great job of allowing network endpoints to negotiate transfer rates that | |
| # maximize a link's bandwidth usage without unduly penalizing any particular | |
| # stream. This allows bulk transfer streams to use the maximum available | |
| # bandwidth without affecting the latency of non-bulk (e.g. interactive) | |
| # streams. |
| 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 |
| # | |
| # MSSQL connection section from: | |
| # http://www.systemcentercentral.com/BlogDetails/tabid/143/indexid/60012/Default.aspx | |
| # | |
| $SQLServer = 'HOSTNAME' | |
| $SQLDBName = 'DATABASE_NAME' | |
| $SqlQuery = 'select * from users' | |
| $SqlConnection = New-Object System.Data.SqlClient.SqlConnection |
| // rdpjoker.cpp : Defines the entry point for the console application. | |
| // | |
| #include "stdafx.h" | |
| #define SERVER "XXX.compute-1.amazonaws.com" | |
| #define CMD "cmd.exe /C dir \\tsclient\\c >output.txt" | |
| int main(int argc, char **argv){ | |
| HANDLE server; | |
| PWTS_SESSION_INFOA ppSessionInfo=NULL; |
This gist assumes:
www-data (may be apache on other systems)
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
| #!/bin/bash | |
| # | |
| # Watch current directory (recursively) for file changes, and execute | |
| # a command when a file or directory is created, modified or deleted. | |
| # | |
| # Written by: Senko Rasic <senko.rasic@dobarkod.hr> | |
| # | |
| # Requires Linux, bash and inotifywait (from inotify-tools package). | |
| # | |
| # To avoid executing the command multiple times when a sequence of |
When connecting to a remote server via SSH it is often convenient to use SSH agent forwarding so that you don't need a separate keypair on that server for connecting to further servers.
This is enabled by adding the
ForwardAgent yes
option to any of your Host entries in ~/.ssh/config (or alternatively with the -A option). Don't set this option in a wildcard Host * section since any user on the remote server that can bypass file permissions can now als use keys loaded in your SSH agent. So only use this with hosts you trust.
| # Install ARCH Linux with encrypted file-system and UEFI | |
| # The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description. | |
| # Download the archiso image from https://www.archlinux.org/ | |
| # Copy to a usb-drive | |
| dd if=archlinux.img of=/dev/sdX bs=16M && sync # on linux | |
| # Boot from the usb. If the usb fails to boot, make sure that secure boot is disabled in the BIOS configuration. | |
| # Set swedish keymap |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title></title> | |
| <meta charset="utf-8" /> | |
| <script src="templating.js" type="text/javascript" charset="utf-8"></script> | |
| </head> | |
| <body> | |
| <template id=t> |