Problem
More than one PC is downloading a big Windows Update or Software Package and the WAN connection overloads.
Solution
Set up a Caching Proxy
- Install on a NAS like QNAP, Synology or a Linux VM
- Don't use the build in Squid Proxy from the NAS since you need special caching settings
Squid config
https://wiki.squid-cache.org/SquidFaq/WindowsUpdate
range_offset_limit 200 MB windowsupdate
maximum_object_size 200 MB
quick_abort_min -1
refresh_pattern -i microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims
refresh_pattern -i windowsupdate.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims
refresh_pattern -i windows.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-imsConfigure Per Site Proxy Settings in Xeox
Setup IP Plan for each site (Network + Netmask) Add Configuration parameter to each IP subnet where a Caching Proxy has been installed:
- Name: PROXY
- Value: ip or fqdn of the Proxy
You can set up the Subnet Plan hierarchically (increase subnet mask). XEOX is trying to find the proxy settings with the highest subnet bitmask. e.g. if you have a 10.0.0.0/8 network with Proxy=A and 10.1.1.0/24 with Proxy=B, a client with ip=10.1.1.111 will use Proxy B, a client with 10.99.99.99 will use Proxy A.
If a proxy has been found:
- WuInstall: /proxyaddress PROXYVALUE will be added
- Aria2c: --all-proxy PROXYVALUE will be added