henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

mattratleph

vimdiff cheat sheet

##git mergetool

In the middle file (future merged file), you can navigate between conflicts with ]c and [c.

Choose which version you want to keep with :diffget //2 or :diffget //3 (the //2 and //3 are unique identifiers for the target/master copy and the merge/branch copy file names).

:diffupdate (to remove leftover spacing issues)

:only (once you’re done reviewing all conflicts, this shows only the middle/merged file)

plentz

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

andrejbauer

/*
  This program is an adaptation of the Mandelbrot program
  from the Programming Rosetta Stone, see
  http://rosettacode.org/wiki/Mandelbrot_set

  Compile the program with:

  gcc -o mandelbrot -O4 mandelbrot.c

  Usage:

soarez

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

jyap808

$ diff -u /etc/nginx/nginx.conf{.ORIG,}
--- /etc/nginx/nginx.conf.ORIG  2014-04-13 04:15:51.907316500 +0000
+++ /etc/nginx/nginx.conf       2014-04-13 05:02:22.807316500 +0000
@@ -30,7 +30,9 @@
        # Logging Settings
        ##
 
-       access_log /var/log/nginx/access.log;
+ log_format vhosts '$host $remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent"';

shamil

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

Ziaunys

server {
  listen                *:80;

  root /usr/share/icingaweb2/public;
  access_log            /var/log/nginx/ssl-icingaweb2_app.access.log;
  error_log             /var/log/nginx/ssl-icingaweb2_app.error.log;

  location ~ ^/icingaweb2(.+)? {
    alias /usr/share/icingaweb2/public;
    index index.php