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How to automatically install Ansible Galaxy roles?
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You should use a requirements.yml file for this use-case. Describe the roles you require, using any of a variety of install methods:
# Install a role from the Ansible Galaxy
- src: dfarrell07.opendaylight
# Install a role from GitHub
- name: opendaylight
src: h...
Prefer composition over inheritance?
Why prefer composition over inheritance? What trade-offs are there for each approach? When should you choose inheritance over composition?
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How to run a Runnable thread in Android at defined intervals?
...application to display some text at defined intervals in the Android emulator screen. I am using the Handler class. Here is a snippet from my code:
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Can Powershell Run Commands in Parallel?
...ions such as start-job, wait-job, etc, but the only good resource I found for doing parallel work was writing the text of a script out and running those ( PowerShell Multithreading )
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NGinx Default public www location?
I have worked with Apache before, so I am aware that the default public web root is typically /var/www/ .
30 Answers
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Date format Mapping to JSON Jackson
I have a Date format coming from API like this:
9 Answers
9
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How to remove a web site from google analytics
I am Administrator of several web sites on google analytics.
10 Answers
10
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Move entire line up and down in Vim
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Put the following to your .vimrc to do the job
noremap <c-s-up> :call feedkeys( line('.')==1 ? '' : 'ddkP' )<CR>
noremap <c-s-down> ddp
Disappearing of the line looks like a Vim bug. I put a hack to avoid it. Probably there is some more accurate solutio...
Increasing the maximum number of TCP/IP connections in Linux
..., albeit a little differently.
On the client side:
Increase the ephermal port range, and decrease the tcp_fin_timeout
To find out the default values:
sysctl net.ipv4.ip_local_port_range
sysctl net.ipv4.tcp_fin_timeout
The ephermal port range defines the maximum number of outbound sockets a host...
Generating random numbers in Objective-C
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You should use the arc4random_uniform() function. It uses a superior algorithm to rand. You don't even need to set a seed.
#include <stdlib.h>
// ...
// ...
int r = arc4random_uniform(74);
The arc4random man page:
NAME
arc4random, arc4random_s...