12-25-2018
Hello Neo,
Thanks for your post.
I have made some tests. When I send a download request to a proxied port at location1, it sends my download request to location2. I can see that traffic is between location1,2 and my house... Not between my house and location2. It seems ridiculous.
When I search "how to set up loadbalance in multiple servers in linux", shown answers are related to haproxy. So, with regard to your answer, loadbalance and haproxy have entirely different functions.
Kind regards
Boris
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STUD(8) BSD System Manager's Manual STUD(8)
NAME
stud -- The Scalable TLS Unwrapping Daemon
SYNOPSIS
stud [--tls] [--ssl] [-c ciphers] [-b host,port] [-f host,port] [-n cores] [-r path] [-u username] [--write-ip] [--write-proxy]
certificate.pem
DESCRIPTION
stud is a network proxy that terminates TLS/SSL connections and forwards the unencrypted traffic to some backend. It's designed to handle
10s of thousands of connections efficiently on multicore machines.
stud has very few features -- it's designed to be paired with an intelligent backend like haproxy or nginx. It maintains a strict 1:1 con-
nection pattern with this backend handler so that the backend can dictate throttling behavior, maxmium connection behavior, availability of
service, etc.
The only required argument is a path to a PEM file that contains the certificate (or a chain of certificates) and private key. It should also
contain DH parameter if you wish to use Diffie-Hellman cipher suites.
The options are as follows:
--tls Use TLSv1 (default).
--ssl Use only SSLv3 and no TLSv1.
-c ciphers
Set allowed ciphers using the same format as openssl ciphers. For example, you can use RSA:!COMPLEMENTOFALL.
-b host,port
Define backend. Default is 127.0.0.1,8000. Incoming connections will be unwrapped and sent to this IP and port.
-f host,port
Define frontend. Default is *,8443. Incoming connections will be accepted to this IP and port and will be sent to the backend
defined above.
-n cores
Use cores worker processes. Default is 1.
-r path
Chroot to the given path. By default, no chroot is done.
-u username
Set GID/UID after binding the socket. By default, no privilege is dropped.
--write-ip
Write 1 octet with the IP family followed by the IP address in 4 (IPv4) or 16 (IPv6) octets little-endian to backend before the
actual data.
--write-proxy
Write HaProxy's PROXY (IPv4 or IPv6) protocol line before actual data.
SEE ALSO
ciphers(1SSL), dhparam(1SSL), haproxy(1)
AUTHORS
stud was originally written by Jamie Turner (@jamwt) and is maintained by the Bump server team. It currently provides server-side TLS termi-
nation for over 40 million Bump users.
BSD
September 23, 2011 BSD