n2n | light VPN software which makes it easy to create | VPN library

by ntop C Version: 3.1.1 License: GPL-3.0

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | n2n Summary

n2n is a C library typically used in Networking, VPN, Nodejs applications. n2n has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has medium support. You can download it from GitHub.

Peer-to-peer VPN

Support

Quality

Security

License

Reuse

Support

n2n has a medium active ecosystem.

It has 5136 star(s) with 825 fork(s). There are 154 watchers for this library.

It had no major release in the last 12 months.

There are 118 open issues and 443 have been closed. On average issues are closed in 98 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of n2n is 3.1.1

Quality

n2n has 0 bugs and 0 code smells.

Security

n2n has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

n2n code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

n2n is licensed under the GPL-3.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

n2n releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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n2n Key Features

No Key Features are available at this moment for n2n.

n2n Examples and Code Snippets

No Code Snippets are available at this moment for n2n.

Community Discussions

Trending Discussions on n2n

Why am I seeing "N"s when I run my code in Ruby?

Seek advise on creating sqlite query to process buy sell transactions according to FIFO method and produce a combine summary

pyspark split string into key value pair and extract certain values

How to multicast single UDP to a group of my instances in AWS?

Is there any way to convert smiles .csv file in in one hot encoding?

QUESTION

Why am I seeing "N"s when I run my code in Ruby?

Asked 2021-Jun-30 at 16:00

I'm new at this and have been practicing on codewars- one of the challenges is a caesar cypher challenge and I've got it pretty much solved except for this one issue... Here's the code I wrote:

...

ANSWER

Answered 2021-Jun-30 at 15:53

The issue is that you're not checking for non-alphabetical characters properly. Going through the logic:

At line 5, you set n to the index of the character in your alphabet string alpha. Because only letters are included, this call to #include? returns nil for all characters that aren't letters (e.g. your string's first character, '1').
At line 6, you set a to n.to_i + 13. Because nil.to_i is zero, this will always be 13 for any character that isn't a letter.
In the block in lines 7-9, you push char to your array because it doesn't exist in alpha (and so you get '1' as the first character of your output).
But then, in line 10, you push alpha[a].upcase as well if char == char.upcase. If char isn't a letter (e.g. initially '1'), it passes this test (because '1' == '1'.upcase) and your code pushes alpha[13].upcase to the output as well, and 'N' is the 13th letter of the alphabet.

Basically, your checks aren't sufficient. You need to account for numbers and other non-alphabetical characters properly each time.

Source https://stackoverflow.com/questions/68197710

QUESTION

Seek advise on creating sqlite query to process buy sell transactions according to FIFO method and produce a combine summary

Asked 2021-Feb-27 at 07:16

I am attempting to create a sqlite query to process stocks buy sell transaction based on FIFO method to track summary of counters performance.

There are 2 queries written so far:

Matching 1 buy and 1 sell transaction to track down the transaction performance, please refer "fifo_command _match_obos_query.txt" below for detail.

...

ANSWER

Answered 2021-Feb-27 at 07:16

After figuring out a few days, here is the solution on my own posting:

The solution utilise sqlite window frame functions to add caculation/manipulation variables to achieve the purpose.

Source https://stackoverflow.com/questions/66354180

QUESTION

pyspark split string into key value pair and extract certain values

Asked 2020-Dec-20 at 07:22

I have column with multiple key value pairs as a string.

Ex:

...

ANSWER

Answered 2020-Dec-20 at 04:29

Use str_to_map, see below:

Source https://stackoverflow.com/questions/65376625

QUESTION

How to multicast single UDP to a group of my instances in AWS?

Asked 2020-Aug-01 at 08:09

I have a machine which is streaming video to one of my AWS Linux server with UDP, then users access my Linux server to obtain the video stream with WebRTC. It is working fine. But If my want to scale it up, I need something to take my UDP stream and multicast it to all of my servers.

I know AWS has a transit gateway multicast which does exactly what I wanted, but it is only available in US-east: Working with multicast - Amazon Virtual Private Cloud

May I know how can I multicast my single UDP stream to my VM scale set?

Maybe let me explain a bit more in pictures: I want to broadcast the UDP stream to multiple server instances, from this:

To This: I've looked into n2n, seems like it is possible to broadcast UDP to its network, not sure if we have any better alternatives?

...

ANSWER

Answered 2020-Aug-01 at 08:09

Update: IP Multicast on AWS Transit Gateway is Now Available in Europe (Frankfurt), South America (São Paulo), Middle East (Bahrain), Asia Pacific (Hong Kong) and Asia Pacific (Seoul) AWS Regions

Multicast is not available in Amazon VPCs. The new transit gateway multicast domain is a way of providing multicast functionality but at the moment (August 2020) it is only available in selected regions.

Thus, you cannot use multicast in any other region.

One way to workaround this issue is to put a "multicast listener" on the sending instance that then re-sends the traffic to a list of "destination instances". This is sending the traffic rather than multicasting the traffic. You might find some sample code on the Internet for this type of re-sending instance, but it isn't a very 'clean' way to do things.

If you use NDI instead of WebRTC, then the NewTek NDI Tools have an Access Manager that allows you to point to a central Discovery Server on one instance, which overcomes the need to use multicast.

Source https://stackoverflow.com/questions/63192813

QUESTION

Is there any way to convert smiles .csv file in in one hot encoding?

Asked 2020-Apr-02 at 15:53

I have converted one single smile in one hot encoding using RDKIT library while converting entire .csv file which contain smiles i am getting error.

Successful Experiment :

...

ANSWER

Answered 2020-Apr-01 at 08:48

There really isn't enough info here to do a full answer. The output looks like a Numpy array, and Numpy needs to preallocate the length of the floats. If you have line one be 10 floats then when appending line two it has to fit within 10 and not go over. It's not able to allocate the memory for it.

Source https://stackoverflow.com/questions/60965692

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install n2n

Some Linux distributions already provide n2n as a package so a simple sudo apt install n2n will do the work. Alternatively, up-to-date packages for most distributions are available on ntop repositories. Now the two hosts can ping each other.
You can create your own infrastructure by setting up a supernode on a public server (e.g. a VPS). You just need to open a single port (1234 in the example below) on your firewall (usually iptables). Now the supernode service should be up and running on port 1234. On your edge nodes you can now specify -l your_supernode_ip:1234 to use it. All the edge nodes must use the same supernode.
Install the n2n package
Edit /etc/n2n/supernode.conf and add the following: -p=1234
Start the supernode service with sudo systemctl start supernode
Optionally enable supernode start on boot: sudo systemctl enable supernode