Editing Training 2022 Linux team/ (section)

==Training Zimbra Cli part 1. Dated 17 Feb 2022 - Tetra Support Staff - Biswajit Banerjee==

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'''Video summary:''' "Zimbra Cli Training part1" -- opens by triaging a list of previously-requested training topics against what's already been covered (undelivered mail, backup, certificate renewal all done in earlier sessions), pointing to the internal wiki for a couple of smaller documented topics (adding a new archive account/ID -- explained inline: create the archive user on the archive server, then map it to the corresponding main-server user in the "archivelist" file and run `postmap` so mail starts flowing to the archive automatically) and flagging "server not working" and "new domain configuration" as too generic/out-of-scope to teach as a single topic. Then begins the actual CLI training: explains that while most Zimbra administration can be done via the GUI, CLI is essential for engineers actually managing environments, and introduces `zmprov` as the single most powerful and heavily-used Zimbra CLI command -- capable of managing accounts, calendars, global config, class-of-service, domains, blocked senders, mailbox-level settings, and especially server-level configuration (demonstrated with `zmprov help server`, showing create/delete/modify-server options and inspecting a server's `zimbraMyNetworks` -- the whitelisted IP ranges, by default including `127.0.0.1`/localhost and the server's own IP). Also distinguishes `*ctl` commands (e.g. `zmamavisctl status`, `zmmailboxdctl status`) as service-level start/stop/status controls, one per Zimbra service (MTA, mailbox, Amavis, MySQL running behind the mailbox service, etc.), from `zmprov`'s broader configuration-management role. Session is cut short by a live infrastructure interruption (an SDWAN probe connectivity issue the presenter had to step away to handle) and closes with a plan to continue the `zmprov` deep-dive in the next session.