osgi-messaging | OSGi Messaging Specification RFC 246 and compliant MQTT | Telnet library

 by   amitjoy Java Version: Current License: Apache-2.0

kandi X-RAY | osgi-messaging Summary

kandi X-RAY | osgi-messaging Summary

osgi-messaging is a Java library typically used in Networking, Telnet applications. osgi-messaging has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

This repository comprises the rudimentary API extracted from the OSGi RFC 246 specification and the MQTT 5.0 implementation of it. This spec is not at all the official version as it is based on the preliminary API from the current version of the spec. This is just an experimental repository for OSGi Messaging specification since the official version is not yet released. The official version is expected to be released with the release of OSGi Enterprise R8 specification in the second quarter of 2021 (as mentioned during the EclipseCON talk). Further to the above, there is a utility bundle comprising an easy-to-use functionality to manage remote resources or edge devices using MQTT 5.0. For more details, have a look at the Remote Resource (Edge Device) Management section.
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            kandi-support Support

              osgi-messaging has a low active ecosystem.
              It has 7 star(s) with 0 fork(s). There are 5 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 2 open issues and 6 have been closed. On average issues are closed in 1 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of osgi-messaging is current.

            kandi-Quality Quality

              osgi-messaging has 0 bugs and 0 code smells.

            kandi-Security Security

              osgi-messaging has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              osgi-messaging code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              osgi-messaging is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              osgi-messaging releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed osgi-messaging and discovered the below as its top functions. This is intended to give you an instant insight into osgi-messaging implemented functionality, and help decide if they suit your requirements.
            • Show the current configuration of the MQTT client
            • Builds the configuration table
            • Prepares a table for the reply to a table
            • Prepares the given subscriptions
            • Execute MQTT application
            • Add correlation id
            • Add the response code to the message
            • Publishes topics to a specific topic
            • Publish the message
            • Outputs acknowledge message
            • Publish a reply message to the client
            • Publish data to a channel
            • Subscribe messages
            • Sends a message to a topic
            • Subscribes to a channel
            • Unsubscribes a subscription
            • Subscribe acknowledge message
            • Sets the priority
            • Submits acknowledge message 2
            • Subscribe a message
            • Prepare an error message
            • Create a stream for responses
            • Subscribes messages
            • Acknowledges a message
            • Convert a MQTT Publish to a MessageContext
            • Subscribes to topic
            Get all kandi verified functions for this library.

            osgi-messaging Key Features

            No Key Features are available at this moment for osgi-messaging.

            osgi-messaging Examples and Code Snippets

            No Code Snippets are available at this moment for osgi-messaging.

            Community Discussions

            QUESTION

            Could not open connection to the AWS ubuntu host, on port 22: Connect failed
            Asked 2022-Mar-13 at 20:53

            I try connecting to my "RUNNING" ubuntu AWS instance on AWS on port 22 (ssh) but it failed with the below error.

            ...

            ANSWER

            Answered 2022-Mar-13 at 20:53

            I used the below steps to recover and fix the instance.

            https://aws.amazon.com/blogs/mt/how-to-fix-ssh-issues-on-ec2-linux-instances-using-aws-systems-manager/

            It took about 2 hours for the process to complete.

            I'm now able to connect alright.

            Source https://stackoverflow.com/questions/71378048

            QUESTION

            How to connect to remote hashicorp vault server
            Asked 2022-Mar-07 at 09:55

            Let me explain my use-case here,

            I wanted to give a try to vault in my local, so I configured VAULT_ADDR as:

            ...

            ANSWER

            Answered 2022-Mar-07 at 09:55

            I was able to figure out solution for above issue. Basically I executed below steps.

            1. First I started vault server in above machine ( '123.456.XXX.X' ) by below command

            Source https://stackoverflow.com/questions/69296390

            QUESTION

            telnet timing out from aws ec2 to sendgrid
            Asked 2022-Jan-23 at 17:22

            I am trying to configure listmonk with AWS EC2 and sendgrid. However I'm getting timeout while sending mails. I tried debugging using the documentation and when I try to telnet, I'm getting timeout:

            ...

            ANSWER

            Answered 2022-Jan-23 at 17:22

            By default, AWS blocks outbound traffic on port 25, and you have to file a request to get the restriction removed.

            I usually just use a different SMTP port instead of trying to get port 25 opened. SendGrid's documentation states:

            SendGrid accepts unencrypted and TLS connections on ports 25, 587, & 2525. You can also connect via SSL on port 465. Many hosting providers and ISPs block port 25 as a default practice. If your Telent session continually times out or will not connect using port 25, it is likely that your ISP or hosting provider is blocking the port. You can contact your host/ISP to find out which ports are open for outgoing SMTP relay. We recommend using port 587 to avoid any rate limiting that your server host may apply.

            I suggest just switching to use port 587

            Source https://stackoverflow.com/questions/70824581

            QUESTION

            Unable to connect to AWS instance on port 22
            Asked 2022-Jan-22 at 06:41

            We were able to ssh to the EC2 instance using the connect details until today; when it stopped working and I get the below error:

            ...

            ANSWER

            Answered 2022-Jan-22 at 06:41

            The Connection timed out message normally indicates that there is no network connectivity.

            In most cases, this is due to the Security Group.

            The steps to check it are:

            • Select the instance in the Amazon EC2 management console
            • Go to the Security tab
            • Check the Inbound rules

            To permit an SSH connection, there needs to be a rule that permits port 22 (SSH) and the source set to your IP address or from the whole Internet (0.0.0.0/0) -- preferably only your IP address so that everybody else will be blocked.

            When launching an Amazon EC2 instance from the console, it will default to creating a new Security Group called launch-wizard. However, it is generally better to create your own Security Group with a useful name and only the rules you want. You can then re-use that Security Group in future for similar instances.

            Source https://stackoverflow.com/questions/70807802

            QUESTION

            How to implement a client that writes and reads like the telenet command?
            Asked 2022-Jan-06 at 07:39

            I want to do a basic rust and tokio implementation of an echo server,the code is based on Creating a Chat Server with async Rust and Tokio,the server works perfectly, but I have problems with the client because when the client is a program that just writes it works fine, but when you want it to work like the telnet command (write and read) it doesn't work, it hangs reading and the message doesn't even arrive

            ...

            ANSWER

            Answered 2022-Jan-06 at 07:39

            The server doesn't send a newline, but the client is waiting for it. It works with telnet because telnet prints characters as they arrive without waiting for a full line.

            Source https://stackoverflow.com/questions/70602119

            QUESTION

            Make a TELNET CONNECTION exposed as a Virtual COM to the OS
            Asked 2022-Jan-04 at 12:46

            I have a Window application that can be connected to a device through Serial Port.

            I would like to have a sort of remotization of the device.

            To Do this the device is connected to a remote board with a processor that run Linux OS and I'm using Ser2Net to transport serial communication to Ethernet Protocol.

            Of course if I connect it via Telnet I can connect the remote device but this is not my target.

            I have a Windows application, as mentioned before, and the only way to connect it to the system is via COM port.

            Is there any easy-way to make this serial over ethernet be spawned as a Virtual COM?

            Thank you! Ale_Trex

            ...

            ANSWER

            Answered 2022-Jan-04 at 12:46

            as far as kunif just commented my post (thank you again) I would like to share the info as an answer to make everybody has my problem, able to fix it properly.

            Following this link you'll get instruction that make you able to spawn a virtual COM to connect to an APP can be link to a generic serial over ethernet.

            WINDOWS - ComPort over Network

            This works fine with me. Hope it works with you too.

            PS. instruction would introduce you to both Windows or Linux approach to the issue.

            Ale_Trex

            Source https://stackoverflow.com/questions/70425423

            QUESTION

            Save continuous telegram in to different folder
            Asked 2021-Dec-22 at 17:06

            I have a problem with saving output from the telegram. My problem is, from server I am getting data every minutes. My VERY SIMPLE CODE can save this continuous data into a .txt file.

            But what I want is, to store this data in a daily folder. From this code, while running, it creates current day folder but keep adding next day data in the same folder and also in the same file.

            It will be very helpful for your help/suggestion to solve this problem.

            My sample code is:

            ...

            ANSWER

            Answered 2021-Dec-22 at 17:06

            Oh now I've got it, 'echolog' is your function, I though it's some app at first sought. It could be simplified like this:

            Source https://stackoverflow.com/questions/70449515

            QUESTION

            Can I access the source code of a PuTTY telnet server?
            Asked 2021-Nov-01 at 15:00

            I'm sorry, I don't know how to phrase my question better.
            For homework, I've been given a telnet server IP and Port that I connect to with PuTTY.
            I was wondering if it is possible to view the source code of that server?
            It is my first time learning about telnet and using PuTTY, and I don't know anything about it. I was just wondering if it is possible to view the source code of a telnet server, and if it is, how to do it.
            Thanks.

            ...

            ANSWER

            Answered 2021-Nov-01 at 15:00

            I guess the idea behind this question is that if you're looking at a webpage you can do "view source" in the browser and look at the HTML, CSS, and Javascript that make up that page.

            Of course, what you're seeing there is just the "client side" part of the web page. You can't click "view source" on Facebook and see the code that accesses their database, decides what to show in your feed, picks out the ads you're going see, etc., because that's all done server-side. Nor can you see the source code for the web server that handles your incoming connection, etc.

            In the case of a telnet server, the "client side" portion is just the raw text you're seeing. There's nothing [1] analogous to what you'd see if you did "view source" in a browser beyond what you're already seeing in your telnet window.

            Of course, if the program that they're running on the server side is publicly available, you may be able to download and read its source code. This is analogous to how, if a web site is running on apache or nginx, you can just download the source code for those and read them. But this is not something that's sent over the telnet connection.

            [1] Slight nitpick: I guess technically if the text you're seeing has VT100 control sequences to highlight or colorize the text that is sort of analogous to HTML code, but it's very limited. If that's what you want to know about, you could either set your telnet client not to process those sequences in order to see what they look like, or you could capture the network traffic with something like tcpdump. But you can also just look up VT100 control sequences.

            Source https://stackoverflow.com/questions/69798576

            QUESTION

            Telnet commands into (through, inside) SSH session
            Asked 2021-Oct-13 at 02:17

            I have a task: to do telnet commands through ssh session.

            I have read similar problems:

            1. Running telnet command on remote SSH session using JSch
            2. telnet through SSH
            3. Execution hangs after Running telnet command on remote SSH session using JSch

            And I wrote the code (with lib https://mvnrepository.com/artifact/com.jcraft/jsch):

            1. Class Ssh:

              public class Ssh { private final String USER; private final String PASSWORD; private final String HOST;

              ...

            ANSWER

            Answered 2021-Sep-29 at 11:05

            I debugged your example and in my case, I needed to wait for the program, which you connect via telnet, until it is ready to receive a command.

            In the second step, you can send your command and the exit command to stop the telnet, so you are reading from the stream until it has stopped by saying "Connection closed...". Be aware, that exiting from telnet can have different commands, some use quit, some other use exit or only wait for a termination signal.

            Source https://stackoverflow.com/questions/69360372

            QUESTION

            Python threading with Telnet
            Asked 2021-Oct-05 at 02:26

            I am trying to connect to multiple switches via telnet and get an output with CPU usage. One thread works and shows the proper CPU Usage. The second thread does not do anything. How do I get two threads working with the same command as the first.

            ...

            ANSWER

            Answered 2021-Oct-05 at 02:26

            You create connection to only one switch

            Source https://stackoverflow.com/questions/69444096

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

            Vulnerabilities

            No vulnerabilities reported

            Install osgi-messaging

            To use it in the OSGi environment, you need to install in.bytehue.messaging.mqtt5.provider. If you want to make use of the remote device management, you also need to install in.bytehue.messaging.mqtt5.remote.adapter. Run ./gradlew clean build in the project root directory.
            Install Bndtools
            Import all the projects (File -> Import -> General -> Existing Projects into Workspace)

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