19,438 questions
3
votes
0
answers
76
views
Sending emails through local proxy
I need to bypass Iran's internet censorship to send emails using R's emayili package. The standard gmail() function fails because the regime blocks the default SMTP protocol.
My goal: Use local HTTP/...
1
vote
1
answer
64
views
Efficiently proxying large Gzipped streams in FastAPI without decompression/recompression loop
I have a microservices architecture implemented with Python and FastAPI in AWS Lambda (No API Gateway). The data flow is roughly:
Client <-> Service A <-> Service B (Processor) <-> ...
Advice
0
votes
5
replies
92
views
C# external http request response as streaming API-response
Our ASP.NET Core Web API needs to request data from an external web service (and no, the external web service cannot be called directly from the client) and return it without modification to the ...
0
votes
1
answer
58
views
Use Proxy to access Azure AD SSO
I’m implementing Azure AD SSO in an ASP.NET Blazor Server app using Microsoft.Identity.Web.
My environment:
Corporate network blocks direct internet.
Azure AD endpoints (login.microsoftonline.com, ...
-1
votes
1
answer
36
views
How to handle proxy-unaware tools behind a corporate proxy (Node.js, npm, git, etc.)
Our organization recently moved all developers onto virtualized Windows machines. All outbound HTTP(S) traffic must go through a centralized corporate proxy, controlled via a PAC file.
We use many ...
-1
votes
2
answers
177
views
How to replace deprecated jquery $.proxy
I am having trouble with rewriting .proxy in jquery to Function.prototype.bind because .bind does not set guid on the bound function instances so that proxied event handlers can be removed without ...
0
votes
0
answers
259
views
How to Efficiently Test V2Ray/Xray Configs in Android App Using libv2ray?
I'm developing an Android VPN app that fetches and tests V2Ray/Xray proxy configurations. I need to find working servers quickly, but my current implementation using libv2ray.measureOutboundDelay() is ...
0
votes
1
answer
128
views
Netty ClientTransport.proxyWithSystemProperties() "early resolve" proxy address causing problem when proxy is unavailable but becomes available later
We are using Spring Boot 3.5.6 and using Netty to call a downstream HTTP system.
We create HttpClient and use proxyWithSystemProperties() to let netty create ProxyProvider using Java System Properties ...
Best practices
0
votes
3
replies
78
views
I want to make an "HTTPS proxy cache server" with nginx that controls large size of Git source
I'm new to nginx and proxy servers.
We have a problem about googlesource 429 Error, caused by many requests and because of bandwidth, we took a long time to get googlesource.
We reviewed to make AOSP ...
1
vote
0
answers
101
views
React Native + Cloudflare Workers: requests freeze after 1–2 mind idle
Summary: React Native + Cloudflare Workers: requests to *.workers.dev freeze after 1–2 minutes idle, while direct origin requests still work
I’m seeing a very strange issue with a mobile app that ...
Tooling
0
votes
0
replies
39
views
Are there any programs out there to use OpenVPN client configuration and serve it as local proxy?
My VPN provider gave me an OpenVPN configuration. I'm on KDE so I can easily configure network manager to use this configuration.
Discord, however, is banned in my country. So I was thinking whether ...
Advice
0
votes
1
replies
42
views
Setting up tcp proxy for the first time, probably misunderstood some concepts
This is my first time using a Proxy to intercept tcp data and I think I misunderstood some concepts and this is why I'm unable to correctly intercept/log packets.
Here is my setup:
My application:
My ...
0
votes
0
answers
60
views
Gravitee OSS Gateway returns 404 when accessing proxied Swagger UI
I’ve deployed Gravitee OSS as an API Gateway on a VM, with a local DNS entry so it’s available at:
http://apim.local:8082
I also have an API running externally at:
https://my-app.k8s.acme.fr/spring/...
0
votes
1
answer
43
views
How to fix 403 when accessing a blob with a proxy
I'm trying to embed Azure Dgital Twins 3d scene into a React application, using this exact repo
https://github.com/malichishti/adt-3d-embedder-app
The app uses msal to authenticate with the azure ...
0
votes
1
answer
87
views
Unexpected Requests to eastus-8.in.applicationinsights.azure.com in Proxy Logs
While reviewing the proxy logs from my work computer, I noticed a large number of requests being made to the following URL:
https://eastus-8.in.applicationinsights.azure.com
These requests only occur ...
0
votes
0
answers
94
views
wfp FWPM_LAYER_DATAGRAM_DATA_V4 modify loopback inbound udp packet address failed
I'm writing a wfp driver which redirect all tcp/udp traffic to a local proxy service. I tried to modified the dest ip and port of outbound udp packets to my local proxy in the ...
1
vote
0
answers
108
views
General SOCKS server failure when sending a domain request via Tor in C
I'm writing a C program called toralizer (connect to a remote host through the Tor SOCKS5 proxy (127.0.0.1:9050)). The handshake succeeds, but when I send a SOCKS5 domain request, I get this error:
...
1
vote
0
answers
82
views
Custom Trust Store and Certificate Validation in a Flutter iOS Application Accessing the Microsoft Outlook Portal using a Self-Signed Certificate
I built an MITM Go proxy to intercept all requests. I’m also developing an enterprise Flutter iOS app that uses a custom in-app trust store (so it doesn’t rely on the OS trust store) and I’ve stored ...
1
vote
1
answer
70
views
Poxing a mocked generic method with Moq
I provide a generic provider for Json serialization:
public interface IJsonSerializerProvider
{
T? Deserialize<T>(string value);
string Serialize(object? obj);
object? ...
0
votes
1
answer
102
views
How to setup proxy for redshift_connector
I'm trying to use redshift_connector by AWS to connect to my Redshift cluster.
To be able to connect, I first need to set up a proxy. Since redshift_connector doesn’t seem to have a dedicated ...
1
vote
0
answers
148
views
How can Playwright send the Proxy-Authorization while using Chromium?
I have a proxy server that requires a username and password to access (e.g., 127.0.0.1:8000, username: abcdef, password: 123456).
When I use Playwright to access a destination website through this ...
0
votes
0
answers
48
views
Kerberos proxy authetication using Axis2_2.0.0 and httpclient5 [closed]
Anyone please let me know how to do below:
Kerberos proxy authentication using Axis2_2.0.0 and httpclient5
My application is running on Axis2_1.8.0 and httpclient4.5.14 and Kerberos proxy is working ...
0
votes
1
answer
91
views
HttpWebRequest works in WinForms but fails under IIS
I’m trying to send a simple HttpWebRequest through a proxy configured as the default proxy for my account.
When I run the following code from a WinForms application, the request goes through as ...
-1
votes
1
answer
150
views
How Do I Use Proxies with Puppeteer and a Local Chrome Instance?
I'm using Puppeteer and JS to write a web scraper. The site I'm scraping is pretty intense, so I need to use a local chrome instance and a residential proxy service to get it working. Here's my basic ...
2
votes
1
answer
390
views
npm install @lvce-editor/ripgrep install dependency on from Github that doesn't respect proxy settings
I am using a .npmrc with the following setup for a proxy:
proxy=http://localhost:8887
https-proxy=http://localhost:8887
strict-ssl=false
But running this statement:
npm install @lvce-editor/ripgrep
...
0
votes
0
answers
96
views
Azure API Management: "Value is not a valid absolute URL scheme" error when using conditional proxy URL with named values
I'm encountering an error in Azure API Management when trying to use a conditional expression to set a proxy URL based on the deployment region. The proxy URL is constructed using named values.
The ...
0
votes
0
answers
43
views
Apache lua_mod setup: "lua: Unable to find function fetch_token_hook in <script directory>"
We're trying to run a lua script to hook into fixups phase of a request in an apache server app, but we keep getting the following:
"[Thu Aug 28 09:55:37.099004 2025] [lua:crit] [pid <<pid&...
1
vote
0
answers
138
views
C# (.NET 4.8) HTTP/s Proxy Checking Accuracy
Over the past few days, I’ve been developing a project in C# (.NET 4.8) that scrapes and validates hundreds of HTTP/S proxies.
I’ve experimented with multiple approaches to confirm whether a proxy is ...
0
votes
0
answers
153
views
SSL_ERROR_NO_CYPHER_OVERLAP with Uvicorn behind Cloudflare
I'm running a FastAPI backend with Uvicorn on my VPS (Using Coolify) behind Cloudflare, and I'm getting the following error in the browser:
SSL_ERROR_NO_CYPHER_OVERLAP
The error only occurs when the ...
1
vote
1
answer
193
views
How to correctly route a final ACK to a backend server with OpenSIPS load_balancer and rtpproxy?
I'm trying to set up a SIP infrastructure using OpenSIPS as a load balancer for multiple backend SIP servers. The goal is to route incoming INVITE requests to a backend server and have OpenSIPS manage ...
0
votes
0
answers
59
views
How the WS-Federation Passive Endpoints configured in ADFS work?
Referring to 3.1.1.1 [MS-ADFSOD]: User and Relying Party in Different Realms Example | Microsoft Learn after introducing ADFS for authenticating custom users.
The AD FS server authenticates the user, ...
0
votes
0
answers
61
views
looking for specific api call using titanium web proxy in my c# app doesn't work but when i use fiddler classic it works
I'm trying to intercept HTTP/HTTPS traffic from a Windows application using Titanium Web Proxy in my C# app.
My C# app sets up an explicit proxy on port 8888 and captures most HTTPS requests just fine ...
0
votes
0
answers
56
views
How to build a proxy as seen in ScrollViewReader and GeometryReader?
GeometryReader and ScrollViewReader use proxies but I don't know how they are constructed. Feels like a black box.
struct ContentView: View {
var body: some View {
GeometryReader { proxy ...
0
votes
0
answers
171
views
Docker Desktop can't pull behind a proxy
The latest docker desktop can't pull. I use docker desktop and pull in Docker Hub, it shows
(HTTP code 500) server error - failed to resolve reference "docker.io/n8nio/n8n:latest": failed to ...
-2
votes
1
answer
95
views
Why does the 502 error appear from the frontend container when accessing the backend container via the api?
Why does the 502 error appear from the frontend container when accessing the backend container via the api?
docker-compose.yml
services:
# PHP Application
backend:
build:
context: .
...
0
votes
0
answers
77
views
The Next js api proxy is not forwarding cookies properly
I’ve been using a Next.js API route as a proxy to call the CopilotKit runtime URL. I attempted to implement a custom fetch to forward cookies and headers from the incoming request to the CopilotKit ...
1
vote
2
answers
274
views
Puppeteer Proxy Issue: ERR_INVALID_AUTH_CREDENTIALS on Specific Website
I've run into an issue while using Puppeteer with a proxy:
On some websites, the proxy works without any problems. However, on others—such as csfloat.com—the connection fails, and Puppeteer crashes ...
0
votes
3
answers
173
views
Why is HTTP CONNECT safe to open an SSL tunnel through a proxy
As I understand, in order to open a SSL tunnel between client and a server through a proxy:
we open a TCP socket with the proxy.
we make an HTTP CONNECT method, which basically makes the proxy only ...
0
votes
1
answer
112
views
Cannot communicate to SMTP server with socket and proxy due to timeout error [closed]
Here's my code for simple proxy validation:
import smtplib, socks
socks.set_default_proxy(socks.PROXY_TYPE_SOCKS5,
'*.*.*.*',
<PORT>,
...
0
votes
1
answer
79
views
Is it possible to route traffic through another server with HAProxy?
I have a specific problem where I have a host that cannot be connected to from outside IPs (let's call it server 1), but can initiate connections with other servers. However, I need to make a TCP ...
0
votes
0
answers
60
views
Replit - system error - error proxying request error=context canceled
I am utilising Replit and since about one month the system has been yielding on the initial deployment of the app and from time to time the system error message:
2025-06-29 06:49:32.13
7ecccb42
System
...
0
votes
0
answers
51
views
Angular proxy is not redirecting to server port
I am running both the backend and angular application on the local host, different ports. Backend is running on 8080 and front-end on 4200. There comes the obvious issue CORS and I configured it ...
0
votes
1
answer
54
views
How do I make my website and iOS/Android apps accessible to visitors whose ISP has blocked my IP address?
I have a website + iOS app + Android app + CDN for images + a pretty heavy database which is constantly being edited.
My country-specific IP addresses are permanently blocked in several foreign ...
0
votes
0
answers
90
views
Can I connect to an authenticated proxy using undetected-chromedriver + seleniumwire?
The proxy I'm trying to connect to is ScraperAPI's proxy and this is the way they provided in documentation to connect to seleniumwire, however it doesn't work and it still uses my IP.
API_KEY = '...
0
votes
0
answers
127
views
Implementing a TPROXY-Based Transparent Proxy in Rust with Docker Integration
how can I make a transparent proxy that listens on a port (let’s say 12345) and, based on packet contents, either forwards the traffic to a specific Docker container or responds itself? Importantly, ...
0
votes
0
answers
48
views
Proxy setting is stuck deep in the Android Virtual Device and cannot be cleared or overridden
I have set up an Android AVD with Android Studio. SDK31, rooted with rootAVD (if you want me to use special tooling later)
Somewhen the internet connectivity got lost. I read and tried a lot of stuff ...
0
votes
0
answers
298
views
How to run both Nginx Proxy Manager (Docker) and native Nginx with stream module on the same VPS using port 443?
Question:
I have two Nginx instances on my VPS:
Nginx Proxy Manager (NPM) running inside Docker, which handles my reverse proxy and SSL.
A native Nginx running directly on the VPS (outside Docker) ...
0
votes
0
answers
80
views
IdentityServer behind Nginx reverse proxy: JWKS 404 errors and infinite redirect loops
for couple of days I'm trying to setup my application on Docker using NGinx reverse proxy but no luck. I am getting no login page just errors in the browser when entering localhost or localhost:44411 (...
0
votes
0
answers
33
views
Squid 5.7 ACL for Whitelisted Domains (e.g., Cambridge/Oxford Dictionaries) Works Intermittently – "Proxy Refused"
I’m running Squid 5.7 on a Raspberry Pi 4 (Debian-based OS) as a whitelisting proxy for my kids. I’ve defined an ACL to allow access to dictionary sites, but it works inconsistently—sometimes it ...
0
votes
1
answer
414
views
How to configure Azure Function App (Flex Consumption Plan) to use corporate proxy (Bluecoat) for outbound internet access?
I’m trying to deploy an Azure Function App (running on the Flex Consumption Plan) with an HTTP trigger. The function app is configured with:
• VNet integration for outbound traffic
• Private ...