Fourteen chapters DHCP service, mail service fifteen chapters
fourteen chapters is not difficult, exam test
scope, super scope, exclusion range, address pools, lease, by appointment. You need to understand.
Fifth chapter
RHEL5,6 the service is called: sendmail
RHEL7 in is called: postfix
the SMTP, POP3, IMAP4 protocols
The first lesson to learn Linux 17
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