networking

问题 We're trying to connect to an API (.net core 2.2) from react-native (version 0.59), via localhost, both apparently running on the same ip, different ports, react-native on port 8080, and the api on the 44344, the issue happens the moment we fetch the url from react-native We’ve also tested running the url from Postman and everything seems ok, also from any of the web browser installed (safari/chrome), even we tested the browser INSIDE react-native iOS, and it works. Any api running outside

问题 We're trying to connect to an API (.net core 2.2) from react-native (version 0.59), via localhost, both apparently running on the same ip, different ports, react-native on port 8080, and the api on the 44344, the issue happens the moment we fetch the url from react-native We’ve also tested running the url from Postman and everything seems ok, also from any of the web browser installed (safari/chrome), even we tested the browser INSIDE react-native iOS, and it works. Any api running outside

问题 The same error is also triggered setting up Multipeer Connectivity (which uses Bonjour). The code I was using for initiating Bonjour browsing and Multipeer Connectivity was modified from the Apple sample code and worked fine under iOS 13. 回答1: You need to add the following keys to the Info.plist: NSLocalNetworkUsageDescription and NSBonjourServices . E.g. <key>NSLocalNetworkUsageDescription</key> <string>Reason for using Bonjour that the user can understand</string> <key>NSBonjourServices<

问题 We have several EC2 instances that are in a private subnet, but gets a public IP address every time that instance is launched. That private subnet has "Auto-assign Public IP" property set to No, but what happens is when instance was created, it got AssociatePublicIpAddress property set to true. Now we don't know how to reset AssociatePublicIpAddress to false without terminating the instances. I'd expect aws ec2 create-network-interface would have an option for that, but it's not the case. EC2

问题 Ever since I discovered sockets, I've been using the nonblocking variants, since I didn't want to bother with learning about threading. Since then I've gathered a lot more experience with threading, and I'm starting to ask myself.. Why would you ever use it for sockets? A big premise of threading seems to be that they only make sense if they get to work on their own set of data. Once you have two threads working on the same set of data, you will have situations such as: if(!hashmap.hasKey(

问题 I want to install some modules in a Enterprise VM in order to create some Python Scripts. I'm trying to use PIP with Proxy to do it. I'm using this command lines: C:\Users\user>SET HTTPS_PROXY=https://user:pass@199.00.11.11:8080 C:\Users\user>SET PROXY=http://user:pass@199.00.11.11:8080 C:\Users\user>pip install datetime To have access to my virtual machine I've this credentials: USER : NAN/user PASS : pass But I am getting this error: Collecting datetime Retrying (Retry(total=4, connect=None

问题 I want to install some modules in a Enterprise VM in order to create some Python Scripts. I'm trying to use PIP with Proxy to do it. I'm using this command lines: C:\Users\user>SET HTTPS_PROXY=https://user:pass@199.00.11.11:8080 C:\Users\user>SET PROXY=http://user:pass@199.00.11.11:8080 C:\Users\user>pip install datetime To have access to my virtual machine I've this credentials: USER : NAN/user PASS : pass But I am getting this error: Collecting datetime Retrying (Retry(total=4, connect=None

问题 I want to install some modules in a Enterprise VM in order to create some Python Scripts. I'm trying to use PIP with Proxy to do it. I'm using this command lines: C:\Users\user>SET HTTPS_PROXY=https://user:pass@199.00.11.11:8080 C:\Users\user>SET PROXY=http://user:pass@199.00.11.11:8080 C:\Users\user>pip install datetime To have access to my virtual machine I've this credentials: USER : NAN/user PASS : pass But I am getting this error: Collecting datetime Retrying (Retry(total=4, connect=None

问题 I want to install some modules in a Enterprise VM in order to create some Python Scripts. I'm trying to use PIP with Proxy to do it. I'm using this command lines: C:\Users\user>SET HTTPS_PROXY=https://user:pass@199.00.11.11:8080 C:\Users\user>SET PROXY=http://user:pass@199.00.11.11:8080 C:\Users\user>pip install datetime To have access to my virtual machine I've this credentials: USER : NAN/user PASS : pass But I am getting this error: Collecting datetime Retrying (Retry(total=4, connect=None

问题 I want to install some modules in a Enterprise VM in order to create some Python Scripts. I'm trying to use PIP with Proxy to do it. I'm using this command lines: C:\Users\user>SET HTTPS_PROXY=https://user:pass@199.00.11.11:8080 C:\Users\user>SET PROXY=http://user:pass@199.00.11.11:8080 C:\Users\user>pip install datetime To have access to my virtual machine I've this credentials: USER : NAN/user PASS : pass But I am getting this error: Collecting datetime Retrying (Retry(total=4, connect=None