Troubleshoot: Customers get 502 Bad Gateway

Troubleshooting: العملاء بيشوفوا 502 Bad Gateway

Ticket INC-5120 (Priority 1): "The public website behind ts5-agw returns 502 Bad Gateway for every customer since the weekend maintenance." The site runs on web1 and web2 (nginx on port 80). Three separate changes were made during maintenance. Find and fix all of them.

The 4 tasks you will do

• Task 1 — Reproduce the 502المهمة 1 — كرّر الـ 502
• Task 2 — Fault 1: the backend portالمهمة 2 — العطل 1: الـ Backend port
• Task 3 — Faults 2 and 3: web2 is stopped and missing from the poolالمهمة 3 — العطلين 2 و 3: web2 واقفة ومش موجودة في الـ Pool
• Task 4 — Prove both servers serve customersالمهمة 4 — أثبت إن السيرفرين بيخدموا العملاء