mirror of
https://github.com/therootcompany/sclient
synced 2024-11-16 17:09:00 +00:00
162 lines
3.0 KiB
Markdown
162 lines
3.0 KiB
Markdown
# sclient
|
|
|
|
Secure Client for exposing TLS (aka SSL) secured services as plain-text
|
|
connections locally.
|
|
|
|
Also ideal for multiplexing a single port with multiple protocols using SNI.
|
|
|
|
Unwrap a TLS connection:
|
|
|
|
```bash
|
|
sclient whatever.com:443 localhost:3000
|
|
|
|
> [listening] whatever.com:443 <= localhost:3000
|
|
```
|
|
|
|
Connect via Telnet
|
|
|
|
```bash
|
|
telnet localhost 3000
|
|
```
|
|
|
|
Connect via netcat (nc)
|
|
|
|
```bash
|
|
nc localhost 3000
|
|
```
|
|
|
|
cURL
|
|
|
|
```bash
|
|
curl http://localhost:3000 -H 'Host: whatever.com'
|
|
```
|
|
|
|
A poor man's (or Windows user's) makeshift replacement for `openssl s_client`,
|
|
`stunnel`, or `socat`.
|
|
|
|
# Table of Contents
|
|
|
|
- [Install](#install)
|
|
- [Usage](#usage)
|
|
- [Examples](#examples)
|
|
- [Build from Source](#build-from-source)
|
|
|
|
# Install
|
|
|
|
### Mac, Linux
|
|
|
|
```bash
|
|
curl -sS https://webinstall.dev/sclient | bash
|
|
```
|
|
|
|
```bash
|
|
curl.exe -A MS https://webinstall.dev/sclient | powershell
|
|
```
|
|
|
|
### Downloads
|
|
|
|
Check the [Github Releases](https://github.com/therootcompany/sclient/releases)
|
|
for
|
|
|
|
- macOS (x64) Apple Silicon
|
|
[coming soon](https://github.com/golang/go/issues/39782)
|
|
- Linux (x64, i386, arm64, arm6, arm7)
|
|
- Windows 10 (x64, i386)
|
|
|
|
# Usage
|
|
|
|
```bash
|
|
sclient [flags] <remote> <local>
|
|
```
|
|
|
|
- flags
|
|
- -s, --silent less verbose logging
|
|
- -k, --insecure ignore invalid TLS (SSL/HTTPS) certificates
|
|
- --servername <string> spoof SNI (to disable use IP as <remote> and do
|
|
not use this option)
|
|
- remote
|
|
- must have servername (i.e. example.com)
|
|
- port is optional (default is 443)
|
|
- local
|
|
- address is optional (default is localhost)
|
|
- must have port (i.e. 3000)
|
|
|
|
# Examples
|
|
|
|
Bridge between `telebit.cloud` and local port `3000`.
|
|
|
|
```bash
|
|
sclient telebit.cloud 3000
|
|
```
|
|
|
|
Same as above, but more explicit
|
|
|
|
```bash
|
|
sclient telebit.cloud:443 localhost:3000
|
|
```
|
|
|
|
Ignore a bad TLS/SSL/HTTPS certificate and connect anyway.
|
|
|
|
```bash
|
|
sclient -k badtls.telebit.cloud:443 localhost:3000
|
|
```
|
|
|
|
Reading from stdin
|
|
|
|
```bash
|
|
sclient telebit.cloud:443 -
|
|
```
|
|
|
|
```bash
|
|
sclient telebit.cloud:443 - </path/to/file
|
|
```
|
|
|
|
Piping
|
|
|
|
```bash
|
|
printf "GET / HTTP/1.1\r\nHost: telebit.cloud\r\n\r\n" | sclient telebit.cloud:443
|
|
```
|
|
|
|
Testing for security vulnerabilities on the remote:
|
|
|
|
```bash
|
|
sclient --servername "Robert'); DROP TABLE Students;" -k example.com localhost:3000
|
|
```
|
|
|
|
```bash
|
|
sclient --servername "../../../.hidden/private.txt" -k example.com localhost:3000
|
|
```
|
|
|
|
# API
|
|
|
|
See [Go Docs](https://pkg.go.dev/github.com/therootcompany/sclient).
|
|
|
|
# Build from source
|
|
|
|
You'll need to install [Go](https://golang.org). See
|
|
[webinstall.dev/golang](https://webinstall.dev/golang) for install instructions.
|
|
|
|
```bash
|
|
curl -sS https://webinstall.dev/golang | bash
|
|
```
|
|
|
|
Then you can install and run as per usual.
|
|
|
|
```bash
|
|
git clone https://git.rootprojects.org/root/sclient.go.git
|
|
|
|
pushd sclient.go
|
|
go build -o dist/sclient cmd/sclient/main.go
|
|
sudo rsync -av dist/sclient /usr/local/bin/sclient
|
|
popd
|
|
|
|
sclient example.com:443 localhost:3000
|
|
```
|
|
|
|
## Install or Run with Go
|
|
|
|
```bash
|
|
go get git.rootprojects.org/root/sclient.go/cmd/sclient
|
|
go run git.rootprojects.org/root/sclient.go/cmd/sclient example.com:443 localhost:3000
|
|
```
|