NaCl | configuration language for IncludeOS that you can use
kandi X-RAY | NaCl Summary
kandi X-RAY | NaCl Summary
NaCl is a configuration language for IncludeOS that you can use to add for example interfaces and firewall rules to your service.
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Top functions reviewed by kandi - BETA
- Process all member assignments
- Enable this key in the chain
- Adds a iface object to the cache
- Check if input is an integer
- Processes the gateway element
- Adds a gateway to the gateway
- Processes an Element node
- Process member members
- Process an assignment key
- Add a member to the chain
- Process a push statement
- Push functions onto chain
- Processes the workflow
- Add a syslog entry
- Processes all assignments
- Add a new timer member
- Process an element
- Returns a pystache route object
- Processes construction variables
- Add CONNTRACK timeouts
- Transpile syslog
- Convert to CoutConvert
- Return the log for the given parameter context
- Processes the context
- Transpile a type into a type
- Transpile a value into the class
NaCl Key Features
NaCl Examples and Code Snippets
Community Discussions
Trending Discussions on NaCl
QUESTION
There are two EC2 windows instance placed in same VPC and same public subnet having same security group. I want to check if both are able to communicate with each other using ping command. I have added rules at both security group and NACL level. ALL ICMP is also been included exclusively other than "all" traffic. but I am not able to test the same. kindly suggest if there is any other way I can check connectivity between two ec2 windows instances?
...ANSWER
Answered 2021-Jun-11 at 16:46If the two EC2 instances are in the same VPC, Subnet, and Security Group you just need to check that the following is in place:
- Security Group allows inbound ALL ICMP is from self (self reference the security group id)
- Security Group outbound ALL TRAFFIC is allowed.
- Subnet has a route to LOCAL in the VPC
QUESTION
I am attempting to validate the signature for my bot application using discord's "INTERACTIONS ENDPOINT URL" in a lambda function running python 3.7. Using the documentation here under the "Security and Authorization" section, I still seem to be unable to get a valid return on the signature, with the exception being triggered each time. I'm unsure which aspect of the validation is incorrect. I am using AWS API Gateway to forward the headers to the lambda function in order to access them. Any help with pointing me in the right direction would be appreciated.
Edit:
Here is the output of the event in lambda for reference. I removed some of the values for security marked by <>.
...ANSWER
Answered 2021-May-23 at 16:20I was able to diagnose the issue. I was unable to verify the signature because AWS API Gateway was altering the body into JSON before it got to my lambda function. This made the signature verification come up as invalid each time. I solved this by checking Lambda Proxy Integration in the Integration Request section in API Gateway. Lambda Proxy Check Box. This allowed an unaltered body being sent to Lambda, which I could then verify my discord outgoing webhook. Below is my final code.
QUESTION
According to https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-develop-integrations-private.html it is possible to integrate API Gateway with an internal Application Load Balancer using a private VPC link.
However I cannot make it work.
I have a service accessible internally through the ALB. The ALB has no public IP, it balances requests in a AWS Fargate cluster (all within private subnets).
...ANSWER
Answered 2021-May-06 at 07:51I got it working. It is definitely possible to use API Gateway http integrated with a private (i.e: internal facing) ALB that balances traffic in private subnets.
The problem I had is that when I created the API in API Gateway through the console, there is an option to add integration, but that integration at that point only allows HTTP or Lambda, and I don't want that, I want a private integration using a VPC link I create in advance.
So here are the steps:
- Create (if non existing already) a security group that allows HTTP traffic on 80. This group will be associated later on to VPC link
- Create VPC link associated to the VPC and, explicitly, to the private subnets where the EC2services or fargate cluster are. Make sure you select the security group that allows HTTP traffic
- Create HTTP API in Apu Gateway. On the first step give it a name but DO NOT create an integration just yet. Skip that. Skip the route creation also. Choose a stage name or leave the
$default(I use$defaultand auto-deploy). - Create a route. If you want to accept anything, do so by choosing
ANYand the path/{proxy+}. - Finally, on that route, attach an integration. This time you'll see that there is an option to choose a private resource where you can explicitly select the private ALB with its http listener AND the VPC link created previously.
That's it. Http requests to Api Gateway will be directed to the private internal facing ALB.
QUESTION
I'm migrating from an architecture that I have a Lambda inside a Private Subnet, talking with a Public Subnet that has a NatGateway, triggered by an API Gateway WebSocket. And now I removed the Nat Gateway and inserted a VPC Endpoint with a VPC Link. That I found in the link: https://d1.awsstatic.com/whitepapers/private-api-best-practices.pdf
My VPC endpoint is currently with a policy all open, I didn't use the Enable Private DNS Name , because in my VPC there are another projects that talk with API Gateway.
My API Gateway triggered the Lambda, but could not respond to the return message. My lambda has a timeout.
In my older architecture, my return endpoint was https://{restapi-id}.execute-api.{region}.amazonaws.com/{stage}, and now when I try to respond, it doesn't work with that endpoint.
Do I have to change the Endpoint?
My Security Group and NACL are very open until I finish testing this connection. The VPC Link and the API Gateway Endpoint are configured with the Lambda Subnet and the Lambda Security Group.
Is something missing from VPC Link or VPC Endpoint?
Edit: I activated the log in the ApiGateway, and before the lambda logs it returns:
...ANSWER
Answered 2021-May-03 at 14:07I found my problem, my VPC Link was missing the connection with the API Gateway. In the AWS::ApiGatewayV2::Integration, I needed to insert the connection of the VPC Link.
QUESTION
Have a selenium test in docker which suddenly stopped working
In logs it shows
...ANSWER
Answered 2021-Apr-28 at 00:22Has nothing to do with Ubuntu that's inside the docker container, issue is somehow related to the Docker Desktop running on windows which starts these containers in the first place. Identical Docker setup but on a linux machine works just fine. Will open another ticket based on this info.
QUESTION
So I'm trying to schedule a task using the standard android work library, but I get the following error trace
...ANSWER
Answered 2021-Apr-27 at 03:54Quoting an answer by the lovely u/Zhuinden on reddit,
If this is a worker, you need to have a constructor that takes Context, WorkerParameters, and NO OTHER PARAMETERS. Just these two.
In your case, the issue is that your class is an inner class, but in Java, that means it also has a reference to its parent. You need to define it as static class
Indeed, adding static to the class definition fixed the problem, but since I wanted to pass data through it I made it an independent public class and used the workmanager data class to pass parameters
QUESTION
I currently have a set up in AWS with something like the following:
Image source from task networking in aws fargate.
I am using AWS ECR to store my docker image and in my task definition, as container image, I am using the provided URI of the repository. Everything is in the same region and they are working just fine.
However I want to strengthen the security on AWS by whitelisting specific ports only. From security groups point of view, I have updated them as needed and everything is still working as expected. However for Network ACL, I am having some issues with the Fargate task. In ACL section in the public subnet, for inbound rules, I want to allow access to only HTTPS and HTTP from the internet (0.0.0.0/0). Doing so is resulting into this issue with my fargate task: ResourceInitializationError: unable to pull secrets or registry auth: pull command failed: : signal: killed. It is to be noted that the outbound rules for both subnets (private and public) allows traffic to anywhere (0.0.0.0/0).
I understand that the Fargate task needs to connect to the internet to pull the docker image in ECR and the NAT helps do that. docker pull or docker push uses HTTPS and the private subnet has allowed all traffic from all source and the same for outbound.
Please advice on how to amend the Network ACL to whitelist specific ports only.
P.S: The last resort would be to use AWS PrivateLink to access the ECR repository, but I don't want to do that yet.
...ANSWER
Answered 2021-Apr-14 at 12:09Your are only allowing ports 80 and 443 in your NACLs. This is not enough, as you need to also allow ephemeral ports.
This is because a request to ECR will come back to your container using ephemeral ports, not 80 and 443. These two ports are only used for your container to connect to ECR, not for return traffic from ECR to your container.
QUESTION
I need to take the RSA PSS signatures of a message generated from Python and validate in .NET. But validation in .NET fails.
I have generated the RSA key pair using the following command:
...ANSWER
Answered 2021-Apr-12 at 18:34The verification fails because both codes use different salt lengths. The Python code explicitly applies the maximum salt length, the C# code defaults to the digest output length. The latter is also defined as PSS default in RFC8017, A.2.3. RSASSA-PSS.
So to fix this
- either use the digest output length in the Python code, i.e. 32 (bytes for SHA256),
- or in the C# code the maximum salt length:
signature length - digest output length - 2 = 512 - 32 - 2 = 478(for a 4096 bits key).
As far as I know this is not possible with .NET onboard means, but with BouncyCastle and the classOrg.BouncyCastle.Crypto.Signers.PssSigner, which also provides constructors for defining the salt length. You can find an example here, last section.
QUESTION
In the example below, would the correct result be to return only the headings between id 9 and 15? the closest I got was:
((^| )(FED[A-Z]*|(ESC[A-Z]*)|(AGRO[A-Z]*)|(CENT[A-Z]*)|(CTR[A-Z]*)|(INST[A-Z]*)|(EDUC[A-Z]*)|(SCI[A-Z]*)|(TEC[A-Z]*))( |$))
Note: the FED [A-Z] * argument must always be present with the combination of at least one of the terms listed. Titles containing the term UNIV [A-Z] * must return false.
ID TEXT CURRENT RETURN EXPECTED RETURN 1 INST NACL MATEMAT PURA TRUE FALSE 2 PARA FED UNIV, TOXICOL LAB TRUE FALSE 3 CTR, BR12020330 TAUBATE TRUE FALSE 4 VICENTE LINHARES ST TRUE FALSE 5 ALBERT EINSTEIN AVE TRUE FALSE 6 REG TECN CRIMINALIST TRUE FALSE 7 NASCIMENTO CASTRO AVE TRUE FALSE 8 SAO PAULO FED UNIV, COLL AGR SCI, DEPT CROP SCI, BOTUCATU, SP, BRAZIL TRUE FALSE 9 INST FED CIENCIA TECNOL SUL MINAS, CAMPUS POCOS DE CALDAS TRUE TRUE 10 INST FED EDUC PERNAMBUCO IFPE, RECIFE TRUE TRUE 11 INST FED MINAS GERAIS, CAMPUS CONGONHAS TRUE TRUE 12 INST FED ECN TECNOL NORTE MINAS TRUE TRUE 13 CTR FED EDUC TECNOL OURO PRETO TRUE TRUE 14 FED INST AMPUS GARANHUNS TRUE TRUE 15 INST FED PERNAMBUCO BRASIL FALSE TRUEMore exemples: https://regex101.com/r/reVgya/1
...ANSWER
Answered 2021-Mar-12 at 23:02You can use
QUESTION
I am a beginner programmer (or so it seems to me) and I need help implementing a queue in a music bot.
At the moment, the queue works fine only when there is one song in it. If there are more songs, then the "recursion" starts (after = await serverQueue (voice, message) from def play and await play (queue.pop (0), voice, message) from queue), and all songs just skipped.
...ANSWER
Answered 2021-Feb-24 at 19:25async def play(video_link, voice, message):
##Воспроизведение песенок
ydl_opts = {'format': 'bestaudio', 'noplaylist':'True'}
FFMPEG_OPTIONS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 'options': '-vn'}
with YoutubeDL(ydl_opts) as ydl:
info = ydl.extract_info(video_link, download = False)
print(info.get('title'))
URL = info['formats'][0]['url']
voice.play(FFmpegPCMAudio(URL, **FFMPEG_OPTIONS), after = lambda e: myAfter(voice, message))
voice.is_playing()
await message.channel.send('**Сейчас играет** - ' + info.get('title'))
async def myAfter(voice, message):
coro = await musicQueue(voice, message)
asyncio.run_coroutine_threadsafe(coro).result()
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install NaCl
You can use NaCl like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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