Editing Category:YOUSECURE (section)

==Training on YOUSECURE Project KT PART 3. Dated 25 April 2024 - Tetra Support Staff - Alok Singh==

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'''Video summary:''' "YOUSECURE PART 2b" -- a continuation of the HAProxy walkthrough, this time live-tailing logs and troubleshooting on the actual servers. Demonstrates using `tail` on the HAProxy log (under `/var/log`) to watch real incoming requests in real time and read the log lines to identify which named backend and which specific server (`srv1`/`srv2`) each request was routed to, confirming the `balance first` failover behavior live -- including what the log looks like when the primary is down and traffic is on the secondary. Moves on to NTP troubleshooting: the internal HAProxy servers (two IPs, one per environment -- Traditional and eSign) double as the NTP servers for their environment's VMs, and a support ticket was caused by some VMs having "NTP connection refused" because the NTP client service wasn't running -- the fix is checking the service status per-VM and starting it, with NTP pool servers pulled from a regional (India) pool defined in the client config. Also revisits the NFS setup in more detail: a `/data` partition with per-service subdirectories (video, KYC, etc.) is exported from the NFS server and mounted onto the equivalent local content directory (e.g. mounting over `/home`) on both paired LAMP servers per site, so uploaded content is visible to whichever server is active. Closes with a tour of the oVirt/RHV-based virtualization platform hosting the whole environment (~38 VMs across separate Traditional and eSign manager consoles), a mention of a master-to-master MySQL replication reference doc, brief pointers to related but out-of-scope docs (Amanda backup software, LVM issues), and a note that email relay (a two-hop relay setup) is also part of the environment. The presenter notes the full YouSecure setup took roughly 4-5 months to build.