S2000-025: IBM AIX v7.3 Administrator SpecialtyDemo

By IBM · Question Mode

QuestionQ28

Operations

After AIX 7.3 is installed, mail does not work when local users try to send mail to other local users on the system.

What should an administrator check first?

  • A Check for hosts = local in /etc/netsvc.conf and the output of lssrc -s sendmail
  • B Check that /etc/sendmail.cf exists and the output of lssrc -s sendmail
  • C Check the output of lssrc -s mailerd and that the system hostname is listed in /etc/hosts
  • D Check the output of lssrc -g qdaemon and check that /etc/sendmail.cf exists
Explanation

Sendmail requires both an active sendmail subsystem and successful local hostname resolution. The hosts = local setting in /etc/netsvc.conf directs sendmail to resolve names through /etc/hosts, which is appropriate for local-only delivery; lssrc -s sendmail verifies that the mail transport service is running. Current AIX 7.3 sendmail configuration files reside under /etc/mail/, not /etc/sendmail.cf.

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