ptcp | Fake TCP protocol in Go | TCP library

by xitongsys Go Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(8)Vulnerabilities Install Support

kandi X-RAY | ptcp Summary

ptcp is a Go library typically used in Networking, TCP applications. ptcp has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Fake TCP protocol in Go

Support

Quality

Security

License

Reuse

Support

ptcp has a low active ecosystem.

It has 10 star(s) with 5 fork(s). There are no watchers for this library.

It had no major release in the last 6 months.

ptcp has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of ptcp is current.

Quality

ptcp has no bugs reported.

Security

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

License

ptcp 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.

Reuse

ptcp releases are not available. You will need to build from source code and install.

Top functions reviewed by kandi - BETA

kandi has reviewed ptcp and discovered the below as its top functions. This is intended to give you an instant insight into ptcp implemented functionality, and help decide if they suit your requirements.

Dial opens a connection to a remote address
NewLocal returns a new local struct
Read reads from the connection .
MySQL server
NewRaw returns a new Raw .
Init initializes the pcp server
hws2bs converts a HWS header to a byte slice .
s2ip converts a string to an int
Listen implements net . Listener .
NewConn returns a new Conn .

Get all kandi verified functions for this library.

ptcp Key Features

No Key Features are available at this moment for ptcp.

ptcp Examples and Code Snippets

No Code Snippets are available at this moment for ptcp.

Community Discussions

Trending Discussions on ptcp

Are there changes between OpenStack Xenial/Pike and Xenial/Queens that would prevent JuJu from creating openvswitch bridges?

Integration Opendaylight, OVSDB. Creation of new Manager at Reboot

openstack neutron-gateway - error: "could not add network device eno2 to ofproto (Device or resource busy)"

Reading stream of Data using TIdIOHandlerStream and TIdTCPClient

React-native Android : App stuck on splashscreen on resume

Converting a dataframe column containing variable length lists to mutliple columns in dataframe

Change Linux Bridge to Openvswitch in OpenWRT

create template with regular expression

QUESTION

Are there changes between OpenStack Xenial/Pike and Xenial/Queens that would prevent JuJu from creating openvswitch bridges?

Asked 2020-Aug-19 at 20:46

We've been running an OpenStack environment for the last 2 and a half years with a few hiccups along the way, but mostly with little downtime. Recently we've been trying to add a new piece of hardware to the stack as a nova-compute node to provide more CPU cores and RAM to our VMs. Unfortunately, for some reason, the install is not going well.

We're running Xenial/Queens with JuJu and MaaS for deployment/provisioning. We were running Xenial/Pike until December when we upgraded. We're starting to suspect that the upgrade to Queens is what's causing the trouble as we were able to add new hardware before the upgrade. We even went as far as removing one of our existing machines that was acting as a nova-compute node and tried adding it back to the stack and it too is now exhibiting the same problems as our new hardware.

The root cause of the problems seems to be with the neutron-openvswitch application. When we install the nova-compute charm via JuJu everything seems to go smoothly up until the (automatic) installation/configuration of the subordinate neutron-openvswitch charm. While watching the logs at a certain point during the install connectivity on our OpenStack admin network (10.10.30.0/24 on eno1) is lost. We're able to force the installation to proceed a bit further by adding a second connection on eno2 (a different external network), but the loss of connectivity on eno1 remains and the compute service isn't able to communicate with the rest of the stack.

Looking at our other compute nodes in the stack that are functional, it looks like the admin network bridge (br-eno1) is not being created by the neutron-openvswitch charm. Some part of the process looks like it's taking down eno1 in preparation of creating the bridge, but then fails, leaving the machine unable to communicate on that interface with the rest of the stack.

None of our configuration has changed since the upgrade to Queens, but perhaps there is some deprecation or change to the default configuration that came along with the Pike -> Queens upgrade we are unaware of? We've read through the release notes but can't seem to find anything that would explain this behavior.

Any help would be greatly appreciated. I'm including a few segments of log files I think are relevant below but can provide anything else that might be needed. Thanks in advance!

Broken server ifconfig

...

ANSWER

Answered 2020-Aug-19 at 20:46

SOLVED!

It turns out that after the upgrade to Queens JuJu was handing out a bad network config to this server. In addition, the OpenVSwitch install was assigning eno1 to br-data instead of creating br-eno1 like on my other servers. The steps to resolve the problem were:

Remove eno1 from the br-data bridge: ovs-vsctl del-port br-data eno1
Copy the functional config from another working server to this servers /etc/network/interfaces file and comment out the line that reads the (busted) cloud config file from /etc/network/interface.d/50-cloud-init.cfg
Update the IPs in the new interfaces file to those found in ifconfig for the eno1 and eno2 interfaces
Reboot
Profit

I don't yet know exactly what caused JuJu to stop sending a proper network config after the upgrade.

My final interfaces file looked like this. Anyone else copying this file will of course have to change all of their IPs.

Source https://stackoverflow.com/questions/62179322

QUESTION

Integration Opendaylight, OVSDB. Creation of new Manager at Reboot

Asked 2020-Jun-11 at 20:07

I carry out the integration between OpenDayLight and OVS through OVSDB in order to realize a ecosystem in which OpenStack is integrated with OpenDayLight and NetVirt for the Virtualization of Tenant Network. When I set the manager in OVS. Every works: The Manager and the Controller works. When I reboot the machine, only the Controller has the label "is_connected:true". Moreover when I reboot a new Manager add in the OVS.

...

ANSWER

Answered 2020-Jun-09 at 05:22

I'm not completely following. Can you post the before and after output of that ovs-vsctl show output?

Source https://stackoverflow.com/questions/62254179

QUESTION

openstack neutron-gateway - error: "could not add network device eno2 to ofproto (Device or resource busy)"

Asked 2019-Apr-01 at 10:57

I performed a cluster node installation using this guide [OpenStack Charms Deployment Guide].(https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/latest/install-maas.html), where the type of network is a Flat network and the components used are:

Maas
Juju
Openstack

My lab is composed by following devices:

...

ANSWER

Answered 2019-Mar-29 at 13:28

update 26/03/19:

On Juju gui I've that:

Source https://stackoverflow.com/questions/55283357

QUESTION

Reading stream of Data using TIdIOHandlerStream and TIdTCPClient

Asked 2018-Nov-30 at 19:14

I have an app that needs to connect to a server using TCP/IP and then just wait for server to send data, and what ever server sends should be saved into a file.

Here is what I did:

The Header file

...

ANSWER

Answered 2018-Nov-30 at 19:10

You are using the wrong IOHandler class.

TIdIOHandlerStream performs I/O using TStream objects. It is typically used for replaying previously captured sessions for debugging purposes, without needing a physical connection to a real server.

You need to use TIdIOHandlerStack instead, which performs I/O using a TCP/IP socket connection. It is Indy's default IOHandler class, so you don't even need to create an instance of it ¹, TIdTCPClient::Connect() will create one internally for you if you do not assign your own.

^{1: unless you need more advanced usage, like connecting to a server through a proxy, etc, then you need your own instance so you can configure it as needed.}

For what you are attempting, let TIdTCPClient use TIdIOHandlerStack and then you can call the TIdIOHandler::ReadStream() method after connecting to the server. Pass in a TFileStream for it to read into, and set its AByteCount parameter to -1 and AReadUntilDisconnect parameter to True so it will read continuously until the socket connection is closed.

Also, like most operations in Indy, ReadStream() blocks the calling thread until finished, so to avoid blocking your UI, you should call ReadStream() in a worker thread. But, if you don't want to use a thread, you can alternately put a TIdAntiFreeze component on your Form instead.

Source https://stackoverflow.com/questions/53557876

QUESTION

React-native Android : App stuck on splashscreen on resume

Asked 2018-Nov-13 at 16:22

My app is stuck on splashscreen after resume:

Launch app
Press on back (go to Android dashboard)
Click on app icon
app is stuck on splascreen

Here are my dependencies :

...

ANSWER

Answered 2018-Nov-13 at 16:22

You should call the SplashScreen.hide() from the componentDidMount() function.

You can add a delay if you wish, for example:

Source https://stackoverflow.com/questions/53283629

QUESTION

Converting a dataframe column containing variable length lists to mutliple columns in dataframe

Asked 2017-Nov-22 at 05:27

I have pandas dataframe that looks like the following.

The column props contain lists and the elements in the list is varying in length. I know the maximum number of entries in the list is 5. I also know that the list is ordered, i.e. I know that the second item always belong to the column with a specific header say "Tense" or "number". Then how can I convert each of the entry in lists into separate columns?

...

ANSWER

Answered 2017-Nov-22 at 05:27

You can try this UDF and see if it works -

Source https://stackoverflow.com/questions/47427314

QUESTION

Change Linux Bridge to Openvswitch in OpenWRT

Asked 2017-Jun-04 at 03:11

I'm trying to change linux bridge in openwrt with openvswitch, with I compile openwrt with openvswitch package for tp-link tlwr1043nd, it's done... the problem is when I delete the br-lan (linux brige) and replace it with openvswitch, it's always error and bricked

This is the script that I use to change to ovs : I run this with ((/root/ovs-tplink.sh > /dev/null 2&>1)&)& so that can be running in background,

...

ANSWER

Answered 2017-Jun-04 at 03:11

[Solved] The script is fine, just edit manually the lan configuration via ssh with nano or vi /etc/config/network to be like this :

Source https://stackoverflow.com/questions/44347485

QUESTION

create template with regular expression

Asked 2017-May-21 at 13:48

I want to create a template on openvswitch.log with regular expression. I have openvswitch.log like follow text ;

...

ANSWER

Answered 2017-May-21 at 13:14

Where do you need to use that regex? You can detect your lines (and group the individual s1/s1-eth2/0 results) with:

Source https://stackoverflow.com/questions/44096796

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

Vulnerabilities

No vulnerabilities reported

Install ptcp

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: