Use other mixer, i dont know how you can have situation like this twice within 6 days. What is this? hot wallet not being refilled? Applications stopping to work?
Probably is related to the DDoS? Servers don't run properly when they keep getting flooded by fake traffic.
You got to be kidding me... you can have processing done on other server than the one where website is hosted on.
If DDOS is disabling deposit processing logic on software level (not processing incoming deposits), it only proves amateur-job of the one who designed the system. No offense.
1. Move deposit processing to different server with IP unknown to attackers and one problem is solved.
2. DDOS can be mitigated by:
- moving it to proper hosting provider with DDOS protection
- move entire web traffic behind cloud firewall (this would cause privacy issues, so rather not).
Cost 1-3k monthly and you can mitigate most of these, but of course not all.
Eg. OVH deals very well with DDOS attempts and you do not pay anything and preserves privacy of customers.
Btw. 502 errors indicates rather resource exhaustion and weak server configuration with lack of enough workers to process incoming requests. This is little different than typical DDOS where server is totally unreachable.