SteamCache.Net is now LanCache.Net
LanCache.Net provides the ability to reduce your Internet bandwidth consumption in scenarios where you have multiple PC gamers sharing the same Internet connection. Through the use of easy to deploy docker containers we aim to make it easy for you to get a local cache of steam's content servers up and running quickly.
The primary use case is gaming events, such as LAN parties, which need to be able to cope with hundreds or thousands of computers receiving an unannounced patch - without spending a fortune on internet connectivity. Other uses include smaller networks, such as Internet Cafes and home networks, where new games are regularly installed on multiple computers; or multiple independent operating systems on the same computer.
Originally designed as a caching solution purely for steam our latest docker imagelancachenet/monolithic handles caching for a wide variety of gaming cdns (Steam, Blizzard, Origin to name a few) in one single easy to use docker container. Power users may prefer lancachenet/generic which is designed as a base for multiple instance, single cdn caches.
Some local dedicated server hardware
Lots of RAM and a reasonably fast SSD or HDD is recommended. Regular commodity hardware (a single 2TB WD Black on an HP Microserver) can achieve peak throughputs of 30MB/s+ using this setup (depending on the specific content being served). For any LAN's over around ~10 people, we highly recommend using SSDs and not standard hard drives.
Linux with Docker
As a quick "get started and go" run the following commands to bring up both a lancache server and a dns container, then configure your router/dhcp server to provide the IP of your lancache server as the dns server for the network.
$LANCACHE_IP is optionally included for each service to avoid conflicts with other currently running services like dnsmasq.
export LANCACHE_IP=`hostname -I | cut -d' ' -f1` docker run --restart unless-stopped --name lancache -v /cache/data:/data/cache -v /cache/logs:/data/logs -p $LANCACHE_IP:80:80 lancachenet/monolithic:latest docker run --restart unless-stopped --name lancache-dns -p $LANCACHE_IP:53:53/udp -e USE_GENERIC_CACHE=true -e LANCACHE_IP=$LANCACHE_IP lancachenet/lancache-dns:latest docker run --restart unless-stopped --name lancache-sniproxy -p $LANCACHE_IP:443:443 lancachenet/sniproxy:latest echo Please configure your dhcp server to serve dns as $HOST_IP
For a more detailed guide, follow the below instead or check the readme's linked
Run the lancache reverse proxy container
docker run --restart unless-stopped --name lancache -v /cache/data:/data/cache -v /cache/logs:/data/logs -p 80:80 lancachenet/monolithic:latest
Note that this container requires the use of port 80 and so may not be run on the same machine as some other website. A dedicated caching server is recommended.
Run the Lancache DNS server container
When starting this container you need to pass in the IP address which the reverse proxy container is running on. Assuming that you're running both containers on the same machine then this will just be the IP address of that machine. This command looks up that IP and then starts the container using it.
export LANCACHE_IP=`hostname -I | head -n 1`; docker run --restart unless-stopped --name lancache-dns -p 53:53/udp -e USE_GENERIC_CACHE=true -e LANCACHE_IP=$LANCACHE_IP lancachenet/lancache-dns:latest
If you want to specify the IP then just place it in the run command like
docker run --restart unless-stopped --name lancache-dns -p 53:53/udp -e USE_GENERIC_CACHE=true -e LANCACHE_IP=126.96.36.199 lancachenet/lancache-dns:latest
Now anyone using this DNS server will have their steam traffic served by the cache.
Start the sniproxy container
An increasing number of game providers are serving https traffic on the same endpoint as http, to ensure we don't break this secure traffic we need a sniproxy instance
docker run --restart unless-stopped --name lancache-sniproxy -p 443:443 lancachenet/sniproxy:latest
Change your DHCP server to give out the IP address of the lancache DNS container as primary DNS
Now, as people join your network they will automatically be configured to use the lancache (unless they've chosen to override DNS on their local PC).
Running on Startup
Please follow the instructions in the Docker documentation to run the container at startup.