Best tutorials for bash beginners

Even just a small amount of coding, or having reference materials, can go a long way when troubleshooting. Reverse engineering code also has it’s merits and these beginner bash tutorials and reference materials compiled by nixCraft are one to bookmark.

A list of online tutorials and resources to help you learn bash shell, the default OS X and Linux shell.

Source: How to Learn bash shell and scripting – The best tutorials for bash beginners

Best tutorials for bash beginners

#Bash, #Beginners, #Books, #Learn, #Scripting

Setting up a NGINX RTMP Streaming Server

ESports, or non-technically the broadcasting of computer games for others to watch, has moved to the spotlight recently and is gathering a larger following than expected. Who would have thought that just watching video games would be more popular than actually playing them? As I have been playing Internet multiplayer games since purchasing Quake as a pre-release, the notion that others might be interested in my game was somewhat fascinating. I began streaming a few months ago on Twitch, but began to see more networks pop up and wondered how I could stream to more than one.

Introducing Real Time Messaging Protocol (RTMP), a service that was developed by Macromedia but released as open source after Adobe’s acquisition. One feature of RTMP allows you to stream video, from video-on-demand to direct broadcasting to pushing to other streaming carriers. The pushing to other carriers is what got me moving on RTMP as a viable solution, as I am using Open Broadcaster which is also open source.

Setting up an RTMP server took under an hour, and all feeds were pushing live in that same time frame. This tutorial is for CentOS or other similar varieties; RHEL, Scientific, etc. If you are looking for Ubuntu or LUbuntu, please visit here. Credit to OBS site for providing the baseline instructions, which I ported over to CentOS

Install CentOS 6 32bit minimal with 512mb RAM and 20GB drive space. The minimal install is highly recommended to eliminate the cleanup of Apache, etc. The system requirements were more than enough after testing 4 external feeds.

Install yum updates, GCC and GZIP; mlocate and nano which are optional.

yum update -y
yum install unzip gcc mlocate nano

Create a subdirectory for the installer stuff, so it can be easily deleted later. Downloaded the required applications and extract them. You can get the latest nginx download here, and the RTMP module always has the latest available using the link below.

mkdir install
cd install

wget http://nginx.org/download/nginx-1.9.0.tar.gz
wget https://github.com/arut/nginx-rtmp-module/archive/master.zip

tar -zxvf nginx*.gz
unzip master.zip

cd nginx*

Now configure, make and make install. You should not receive any errors or missing dependencies.

./configure --with-http_ssl_module --add-module=../nginx-rtmp-module-master
make
make install

Now start the service

/usr/local/nginx/sbin/nginx

To see if NGINX is working, visit you servers homepage and you will see an NGINX start page. Now we move on to added RTMP to NGINX’s config files. The files are located in these directories:

/usr/local/nginx/conf/nginx.conf

/usr/local/nginx/conf/nginx.conf.default

Open the file, scroll to the end and insert the text.

nano -w /usr/local/nginx/conf/nginx.conf

rtmp 
 server 
 listen 1935;
 chunk_size 4096;
application live 
 live on;
 record off;
 
 

Now restart the service.

/usr/local/nginx/sbin/nginx -s stop
/usr/local/nginx/sbin/nginx

This part ends the standard install of NGINX and RTMP. Below goes into detail on how to configure the various services you can push your gaming stream to.

First we need to edit OBS (on your PC) for streaming to your custom server. Go to Settings -> Broadcast Settings and change the Streaming Service to “Custom”. Add the server we recently configured in the FMS URL box. The Play Path/Stream Key can be any variable, as it is not used in this tutorial.

Now add your external sources to push your feed when you go live. Some services only use one server (or smart routing), although Twitch has multiple servers. You can find a list of nearby Twitch servers here. It is suggested you pick one that is closest to your server if your PC is located in a different city.

All feeds follow the same basics: push rtmp://server_source.tld/streaming_key;

Edit NGINX config.

nano -w /usr/local/nginx/conf/nginx.conf

Insert your stream, example below.

rtmp 
 server 
 listen 1935;
 chunk_size 4096;

 application live 
 live on;
 record off;
 push rtmp://service.one.here/your_stream_key;
 push rtmp://service.two.here/your_stream_key;
 
 

Restart NGINX, start your stream on your PC and open any streaming provider you placed in the config. Your streams are now being pushed to multiple sources.

Other minor settings to thing about is preventing someone else from using the streaming serverand deny local play. Add the following lines to your configuration. I suggest using a /24 range for your IP, as most ISP’s do not statically assign them.

rtmp 
 server 
 listen 1935;
 chunk_size 4096;

 application live 
 live on;
 record off;
 push rtmp://service.one.here/your_stream_key;
 push rtmp://service.two.here/your_stream_key;
		 allow publish 123.45.67.89/24;
		 deny play all;
 
 

Restart NGINX.

If you found this tutorial helpful, please subscribe to my Twitch feed to show your support. Thanks!

Setting up a NGINX RTMP Streaming Server

#Centos, #Gaming, #GibTv, #HitboxTv, #Nginx, #OpenBroadcaster, #Rtmp, #Streaming, #Tutorial, #TwitchTv

Sandboxie - Sandbox Your Applications

Sometimes you may question a file, or maybe just want to browse the web a bit safer, and sandboxing can provide a bit of help with this. Sandboxes are like their name implies, a child’s playbox, and the term has been in use by IT people for decades.

Applications run in a sandbox are prevented from modifying other programs, or if changes are made, they can be reverted back to original state when the sandbox is closed or flushed. Sandboxie does exactly this, allows you to run applications reducing the risk your PC will be infected. They have a video which outlines how it worked with Cryptolocker here.

One of the features Sandboxie provides is running your web browser in a secure sandbox. If you are surfing questionable sites, or just want to stay a bit more secure, this would be the app to run. You can download Sandboxie via the link below.

Sandboxie – Sandbox security software for Windows. Install and run programs in a virtual sandbox environment without writing to the hard drive.

Source: Sandboxie – Download Sandboxie

Sandboxie - Sandbox Your Applications

9 Health Foods That Aren't Worth the Money | Eat This Not That

Wondering whether the health foods you picked up are worth the dough you dropped? We tell you.

Source: 9 Health Foods That Aren’t Worth the Money | Eat This Not That

9 Health Foods That Aren't Worth the Money | Eat This Not That

5 Ways to Flatten Your Belly in 24 Hours | Eat This Not That

How to bring your digestive system into balance to rev up your metabolism, dramatically reduce bloating—and see results in less than a day.

Source: 5 Ways to Flatten Your Belly in 24 Hours | Eat This Not That

5 Ways to Flatten Your Belly in 24 Hours | Eat This Not That

Making Private and Anonymous Cellular Calls

People have always been tracked and calls always monitored. For most people this is not an issue, but for some it’s a real problem due to the nature of their actions. This article breaks down some simple steps to anonymity if you really need it. The author even goes into a small bit of detail on how calls are tracked. Paranoid, or just curious, about your privacy? You can read more on Kasperky’s blog.

Making Private and Anonymous Cellular Calls

#Anonymous, #Cellular, #Privacy

Solar Roadways A Reality

Artist’s rendition of downtown Sandpoint, Idaho – Home of Solar Roadways
Graphic design by Sam Cornett

Solar roadways, a path to safer highways and enhanced recreational parks? The concepts are pretty cool, and the added bonus of eliminating many of the expenses cities encounter makes it a win-win. Melting snow without plows or salt, changing a basketball court into a kiddie playground, redirecting traffic due to emergencies (think hurricanes) and visual recognition of something moving across a road? These are all realities on this current project.

This also paves the way for self-driving cars. Data can be transmitted and received via the vehicles computer, read by the road and automatically routed based on traffic conditions. The added bonus of providing a free power source for cities, homes, playgrounds, etc is one way it can pay for itself rather quickly. Wishing I was on the development or deployment team for this project, it has a definite future. Read more about the project here: Solar Roadways – Introduction.

Solar Roadways A Reality

#Driving, #Indiegogo, #Recreation, #Research, #Roads, #Safety, #Solar