Editing Training 2022 Linux team/ (section)

==Training L0 And L1 calls training session Part 02. Dated 15 Dec 2022 - Tetra Support Staff - Varad==

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'''Video summary:''' "L0 and L1 training session Part 02" -- continues the L0/L1 call-handling series, working through real ticket examples end to end. Covers CLI-based user management via `zmprov`-style commands: a lookup command to view a client's full account info before making changes, a create-account command (demonstrated creating a marketing address), and setting/resetting a password. Walks through a CareIndia IP-whitelisting ticket: editing a specific two-line section of a config file (never anything below it) to swap out the old whitelisted IP for the new one provided in the ticket, with a strict "always edit exactly the first two lines, proper spacing" convention. Covers postfix relay-domain onboarding for CareIndia: adding a new mail domain/extension into the relay config with correct spacing, then running `postmap` to apply it -- flagged as one of three recurring CareIndia ticket types (alongside the other two just covered) that come in roughly every 8-15 days. Moves into Nagios-adjacent mail-queue management for Hero MotoCorp: checking mail queue status (`postqueue`-style commands) to see counts of active/deferred mail, checking how many messages are stuck pending, and flushing/clearing the queue with the appropriate flush command when messages are stuck -- repeated for a second server ("Relevant") with a much larger queue backlog (37 messages) using the same two-command pattern. Closes with an Arihant Electricals new-mailbox-creation ticket: stresses that when a client's ticket specifies both the mail ID and the desired password, that exact password must be used rather than generating a new one; walks through logging into that client's specific webmail admin URL, creating the account with the client-specified first/last name and password, and verifying the account works by logging in and changing the password via the admin panel as a final confirmation step.