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Ifconfig List all the interfaces available on the machine $ ifconfig -a List the details of a specific interface Syntax: $ ifconfig <interface> Example: $ ifconfig eth0 eth0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx inet addr:x.x.x.x Bcast:x.x.x.x Mask:x.x.x.x ...

An IP address to an interface could be obtained via DHCP or Static assignment DHCP If you are connected to a network with a DHCP server running, dhclient command can get an IP address for your interface $ dhclient <interface> or alternatively, you could make a change to the /etc/network/...

File: /etc/hosts contains a list of hosts that are to be resolved locally(not by DNS) Sample contents of the file: 127.0.0.1 your-node-name.your-domain.com localhost.localdomain localhost XXX.XXX.XXX.XXX node-name The file format for the hosts file is specified by RFC 952

File: /etc/resolv.conf contains a list of DNS servers for domain name resolution Sample contents of the file: nameserver 8.8.8.8 # IP address of the primary name server nameserver 8.8.4.4 # IP address of the secondary name server In case internal DNS server you can validate if this server reso...

IMPORTANT This is just an example code, do not use in production. In order to download an header chain we have to send a getHeaders message. In this example we will require as much as possible headers after the 40000th one.The peer will respond with batch of 2000 headers so, we have to take the la...

This should always be your initial fix. A good policy is to decompile the database before each release. Create a decompile shortcut. This loads the database with a "/decompile" switch. Right Click your Database File. Select Copy Right Click in the explorer window and select &quot...

Sometimes the crashes occur constantly in a single form or report, or occur only when printing. It is possible that the binary data within the form / report has become corrupt. Save the Form / Report object as text There are two undocumented functions. Application.SaveAsText and Application.Load...

This is a lot of work, so do this as a last resort after exhausting all other options. You only need to do this if the problem is occurring for different users, on different machines. If it isn't occurring for all users, then most likely it is not a corrupt database container. Similar to the steps...

Install Python, go into the command line and type: Python 2: pip install pyglet Python 3: pip3 install pyglet

When you develop a C++ program, the next step is to compile the program before running it. The compilation is the process which converts the program written in human readable language like C, C++ etc into a machine code, directly understood by the Central Processing Unit. For example, if you have a...

Manipulate the IP routing table using route Display routing table $ route # Displays list or routes and also resolves host names $ route -n # Displays list of routes without resolving host names for faster results Add/Delete route OptionDescriptionadd or delAdd or delete a route-host x.x.x.xA...

Appearance: "Paamayim Nekudotayim" means "double colon" in Hebrew; thus this error refers to the inappropriate use of the double colon operator (::). The error is typically caused by an attempt to call a static method that is, in fact, not static. Possible Solution: $classname...

Detailed instructions on getting amazon-cloudformation set up or installed. Amazon cloud formation templates can be launched in three ways. AWS Console. AWS CLI. AWS SDK available in Java, Ruby etc.. AWS CLI is one of the most intuitive CLI available. The commands are simple to ...

sound = pyglet.media.load(sound.wav) sound.play()

Grammar Example (Expr.g4) grammar Expr; prog: (expr NEWLINE)* ; expr: expr ('*'|'/') expr | expr ('+'|'-') expr | INT | '(' expr ')' ; NEWLINE : [\r\n]+ ; INT : [0-9]+ ; Generating the visitor To generate a Visitor, or to disable a visitor for your ...

We can statically bootstrap an application by taking the plain ES5 Javascript output of the generated factory classes. Then we can use that output to bootstrap the application: import { platformBrowser } from '@angular/platform-browser'; import { AppModuleNgFactory } from './main.ngfactory'; //...

You can create new commands via php artisan make:command [commandName] So this will create [commandName] command class inside app/Console/Commands directory. inside this class you will find protected $signature and protected $description variables, it represents name and discription of your comma...

instance methods use an instance of a class. @interface MyTestClass : NSObject - (void)testInstanceMethod; @end They could then be used like so: MyTestClass *object = [[MyTestClass alloc] init]; [object testInstanceMethod]; Class method can be used with just the class name. @inte...

This is a sample Fastfile setup for a multi-flavor app. It gives you an option to build and deploy all flavors or a single flavor. After the deployment, it reports to Slack the status of the deployment, and sends a notification to testers in Beta by Crashlytics testers group. To build and deploy al...

Sublime Terminal. Terminal allows use to open your favourite terminal right at the current file or project location you are currently working on in Sublime Text, with handy keyboard shortcuts. It is available through Package Control. SideBar Enhancements. This plugin adds additional functio...