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RH302 · Question #192
RH302 Question #192: Real Exam Question with Answer & Explanation
Answers: dovecot:ALL EXCEPT .example.com, .my133t.org We can secure the services using tcp_wrappers. There are main two files, /etc/hosts.allow and /etc/hosts.deny. There will be three stage access checking Is access explicitly permitted? Means permitted from /etc/hosts.allow? Ot
Question
Configure to allow the pop3 and imap connection from your domain example.com and my133t.org domain.
Explanation
Answers: dovecot:ALL EXCEPT .example.com, .my133t.org We can secure the services using tcp_wrappers. There are main two files, /etc/hosts.allow and /etc/hosts.deny. There will be three stage access checking
- Is access explicitly permitted? Means permitted from /etc/hosts.allow?
- Otherwise, Is access explicitly denied? Means denied from /etc/hosts.deny?
- Otherwise, by default permit access if neither condition matched. To deny the services we can configure /etc/hosts.deny file using ALL and EXCEPT operation. Pattern of /etc/hosts.allow and /etc/hosts.deny file is: Demon_list:client_list:options In Client list can be either domain name or IP address.
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