Can HAProxy handle UDP traffic?

Syslog Protocol (UDP/TCP) HAProxy 2.3 allows you to create a syslog listener over UDP or TCP that can forward, prioritize, and translate syslog messages to a pool of UDP or TCP syslog servers.

Can HAProxy proxy UDP?

HAProxy is for TCP/HTTP and UNIX sockets as well: “… …” but apparently it has no support of UDP except for logging purposes. Nginx is an option you can consider though.

Is HAProxy a load balancer?

HAProxy (High Availability Proxy) is open source proxy and load balancing server software. It provides high availability at the network (TCP) and application (HTTP/S) layers, improving speed and performance by distributing workload across multiple servers. HAProxy runs on Linux, FreeBSD and Solaris operating systems.

Does nginx support UDP?

NGINX listens for UDP network traffic (protocols such as DNS, syslog, and RADIUS) on one or more addresses (IP address and port), as defined by the administrator. NGINX Plus R9 will include application (also called ‘asynchronous’ or ‘synthetic’) health checks for UDP services, similar to those for HTTP and TCP traffic.

What is UDP load balancing?

A UDP load balancer is a type of load balancer that utilizes User Datagram Protocol (UDP), which operates at layer 4 — the transport layer — in the open systems interconnection (OSI) model. UDP traffic communicates at an intermediate level between an application program and the internet protocol (IP).

What is a UDP proxy?

UDP proxy (UDPXY) allows you to watch open IPTV channels on a player that does not accept a multicast UDP stream. The IPTV channel requested by the player will be transmitted to it via HTTP connection. This feature will be useful for watching IPTV on mobile devices, some smart TVs, and game consoles.

What do load balancers do?

A load balancer is a device that acts as a reverse proxy and distributes network or application traffic across a number of servers. Load balancers are used to increase capacity (concurrent users) and reliability of applications.

Is HAProxy a reverse proxy?

HAProxy is a reverse proxy that sits in front of the two web servers and routes requests to them.

Can you load balance UDP?

Overview of UDP Load Balancing The UDP protocol does not use connection sequence numbering to monitor the transmission and receipt of data. UDP connections, however, can be tracked through the IP address and the port number. Since UDP is connectionless, data packets are directly forwarded to the load balanced server.

Is it possible to achieve DNS load balancing using HAProxy?

Obviously, the DNS requests from clients to the proxy aren’t working… Is it possible to achieve this using haproxy? You don’t need to load balance your DNS servers. It is enough to have two DNS servers configured on the client side and that’s it.

Which is the best load balancer for UDP?

A couple of options quickly surfaced. The first was Keepalived, a load balancer built on top of the virtual router redundancy protocol (VRRP) and the Linux Virtual Server (LVS). The other, more modern choice was everyone’s favourite proxy server, nginx.

Where does HAProxy listen on UDP port 53?

The outgoing part of an IP connection (from 10.10.24.5 to 10.10.24.2) usually uses a random port (or semi-random), it doesn’t need to have the same port number as the target machine. which indicates that HAProxy is indeed listening on UDP port 53 for DNS requests and is ready to forward it to the subsequent servers.

Do you need to load balance your DNS servers?

You don’t need to load balance your DNS servers. It is enough to have two DNS servers configured on the client side and that’s it. If you don’t have another machine acting as a load balancer, you will be creating a single point of failure for DNS service. This is a similar post at serverfault.