Open CyberSecGuy opened 6 years ago
@RyanEwen Important info here:
Steam runs DNS lookups against: steampipe.akamaized.net which pulls back CNAME records of valve???.steamcontent.com
These records are between: valve300-valve569.steamcontent.com
When placing: address=/steampipe.akamaized.net/NGINX_IP - in dnsmasq and steampipe.akamaized.net - in nginx.conf
The entire system breaks down, and the DNS query goes absolutely bonkers doing valve???.steamcontent lookups. All of which points to the SteamCache.
Going to continue playing with it.
I have generated a number list 1-1000, and formatted each line as valveXXX.steamcontent.com and placed in both .nginx.conf and .dnsmasq.conf.
I still am resolving these IP addresses according to Wireshark and TCPView;
Steam.exe 17032 TCP desktop-jjbmna6 18301 162.254.192.45 http ESTABLISHED 23 7,636 282 8,477,578 3,984 5,555,884 12 182
Steam.exe 17032 TCP desktop-jjbmna6 18295 162.254.192.37 http ESTABLISHED 25 8,300 290 8,725,870 5,644 4,216,189 17 147
Steam.exe 17032 TCP desktop-jjbmna6 18284 162.254.192.15 http ESTABLISHED 27 8,964 347 10,706,449 4,316 5,342,747 13 178
The second I add steampipe.akamaized.net back into the mix, we're back to everything breaking. I think I need to see if I can use dnsmasq to spoof the CNAME to something that points to the steamcache.
I'm stuck for a moment, I threw this into .dnsmasq.conf
cname=steampipe.steamcontent.com,steampipe.akamaized.net
but steampipe.akamaized.net is still pulling back valve???.steamcontent.com CNAME records and those IPs aren't resolving.
Thanks for putting in the time and effort to figure this out
I'm thinking there are some missing entries to pull the download from the lancache ... if you have a new txt files with all current dns would be appreciated.
My steam is set to pull downloads for Honolulu steam servers, maybe there is something to add in the txt file to make sure that it would download from lancache instead of steam servers.
If you can give me a direction or which line to update, would be appreciated.
Thank you.
This is less of a request for help, and more of me jotting down information and hoping it evolves into a "Solved" tag.
I've been playing with a few different settings and adding a few new DNS records from Steam that I've been able to find, here's the original list:
Here's my new list with a few more domains that I've been able to track down.
Yet when I download games it is still resolving hostnames to these two IP addresses: 65.216.231.194, which belongs to UUNET a server in Ashburn Virginia, as I have my download settings on Steam pointing to Washington DC. As well as 151.205.0.27, which I'm not sure about.